Official Power Sound Audio Subwoofer Thread - Page 1579 - AVS Forum | Home Theater Discussions And Reviews
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post #47341 of 49679 Old 03-17-2019, 05:45 PM
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Quote:
Originally Posted by Tom Vodhanel View Post
I think many don't realize the cost of shipping 120+ pound boxes, via air, over the Atlantic. Then add in all of the typical import fees as well. I don't have the sheet right in front of me but it's something like 22-25% iirc? Shipping, import fees, transport from the dock to the warehouse, holding, customer pre sales support, shipping from the warehouse to the end user, follow-up support as required, all the ancillary costs no one considers---what about damage in one of the THREE shipping legs for example?

Anyway, not trying to justify anything really...thinking out loud for the most part..

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You ship your subwoofers air overseas(or anywhere)?

How many normal people paychecks would it cost to ship a 7201 that way?
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post #47342 of 49679 Old 03-17-2019, 05:53 PM
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Quote:
Originally Posted by drh3b View Post
You ship your subwoofers air overseas(or anywhere)?

How many normal people paychecks would it cost to ship a 7201 that way?
I don't even quote those anymore. I used too back in 2011-2012-2013 but I would get MAYBE one order for every 50 quotes. It's not worth the time.

Everyone thought a 100-200 pound sub should be shipping to Asia, or Australia, or Europe for $200 or something ridiculous.

Now I just let everyone know they need to use their own freight forwarder.

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post #47343 of 49679 Old 03-17-2019, 05:59 PM
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Quote:
Originally Posted by Tom Vodhanel View Post
I think many don't realize the cost of shipping 120+ pound boxes, via air, over the Atlantic. Then add in all of the typical import fees as well. I don't have the sheet right in front of me but it's something like 22-25% iirc? Shipping, import fees, transport from the dock to the warehouse, holding, customer pre sales support, shipping from the warehouse to the end user, follow-up support as required, all the ancillary costs no one considers---what about damage in one of the THREE shipping legs for example?

Anyway, not trying to justify anything really...thinking out loud for the most part..

Tom V.Power Sound Audio
You have to pay for the shipping cost (obviously) + import duty, and this is just the subtotal. Then 20% VAT (tax) on THAT subtotal (i.e. value of the item + shipping cost + import duty). So yes, it's costly :/

Here's an example from this webpage:

Goods purchased from outside of EU (converted from USD to GBP) - £5000
UK Duty at 3.5% - £175
Cost of shipping to UK - £500
SUBTOTAL - £5675
20% VAT (tax) on the SUBTOTAL - £1135
TOTAL COST INC. UK DUTY & VAT - £6810

EDIT: Just to make it clear to those who don't live in the UK... in the UK, we play 20% (it used to be 17.5% before January 2011) tax on everything we buy. Yes, everything. Whether you're buying a TV, some clothes, a sandwich from Subway, etc. It's included in the price so we're not constantly made aware of this. Sneaky.
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post #47344 of 49679 Old 03-17-2019, 06:08 PM
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There has been a bit of controversy lately regarding Low-tuned subs and Tactile Response.

Tom summed up conventional wisdom:
Quote:
Originally Posted by Tom Vodhanel
Most of what we hear/feel can be summarized quickly. Show us the FR, how the FR changes with volume, and any audible distortions along the way.

That's really it.

Now, please pay attention to the first word---MOST..

And then the last consideration as well---any audible distortions.

I would dare to say that if we minimize/eliminate the last then the first becomes all or almost all. Of course that is easier said than done.
I believe there is more to it than this. Tom has dedicated all of his time the last ~10 yeard to building PSA into the next SVS (before it became SVSound), which is major. But this means not participating in GTGs and not visiting customer's rooms. I can't remember the last time Tom was discussing recent blu-ray soundtracks or mentioning even having a system at home outside of PSA.

I have spoken to @serith and he is a TR junkie. He simply wants to maximize ULF TR, even at the expense of some SQ. Being in a basement with a low-ceiling doesn't help his cause (building a platform/riser would make a huge difference).

For several years we have been investigating TR here on AVS. @dominguez1 first brought it to my attention. Vibsensor and the Rasperry Pi are good tools to evaluate TR in a room, but I have yet to find a way to quantify sub by sub (preferably outdoor GP). I am determined to quantify with measurements. I am close.

The BassEQ is the biggest game changer. It changes the narrative that <30Hz content is rare. I believe we will see a low-tuned sub from PSA sooner than later. I'd like to see something based on the 15" drivers or something new rather than the existing 18s. Whatever is best suited for the best performance across the board. Imagine a low-tuned XV-30FSE! https://www.powersoundaudio.com/pages/xv30fse
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post #47345 of 49679 Old 03-17-2019, 08:07 PM
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Quote:
Originally Posted by Marc Alexander View Post
@flat4 's and @climber07 's pics of getting the 7201s to the second story are truly legendary. I'm thinking many of these accomplishments deserve their own thread!

Basements can be challenging too. I'm thinking about @femi 's Orbit Shifters→Cap 4000ULFs and @serith 's Rythmik FV25s→Cap 4000ULFs just off the top of my head.

I wish I had taken more pictures of the process and maybe even a video. I was worried that the video would have been rated R for strong language and violence though.


Had I not been an experience climber and used to hauling loads up cliffs, I would have required the expertise of a moving company with a stairway climbing dolly.



Just some pics looking back! The sub makes my towers look tiny.
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Power Sound Audio S7201 Quad 18" 4000W Sealed Subwoofer - Onkyo TX-NR3009 - Emotiva XPA-2 300 WPC - Polk Audio RTiA9 Mains - CSiA6 Center - F/XiA6 Surrounds - Epson 5030UB Projector - Multi-format 106" HD Gray screen - Samsung BD-F5900 3D Bluray - WDTV Live HD Media Player with 6TB External Storage - Nintendo Wii - XBox 360 - - XBox One S - Logitech Harmony One, and custom DIY media console...
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post #47346 of 49679 Old 03-17-2019, 08:16 PM
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Now you just need to add another! Lol
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post #47347 of 49679 Old 03-17-2019, 08:18 PM
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Quote:
Originally Posted by imureh View Post
That is one thing Serith does not believe in and that is measuring.


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i can't change the sub placements in my room so it feels rather futile.


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post #47348 of 49679 Old 03-17-2019, 08:21 PM
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Originally Posted by subacabra View Post
Now you just need to add another! Lol

Don't think I haven't thunk it.
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Power Sound Audio S7201 Quad 18" 4000W Sealed Subwoofer - Onkyo TX-NR3009 - Emotiva XPA-2 300 WPC - Polk Audio RTiA9 Mains - CSiA6 Center - F/XiA6 Surrounds - Epson 5030UB Projector - Multi-format 106" HD Gray screen - Samsung BD-F5900 3D Bluray - WDTV Live HD Media Player with 6TB External Storage - Nintendo Wii - XBox 360 - - XBox One S - Logitech Harmony One, and custom DIY media console...
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post #47349 of 49679 Old 03-17-2019, 08:30 PM
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Originally Posted by serith View Post
i can't change the sub placements in my room so it feels rather futile.


Understood. But even a few inches here or there can make a difference. Plus it would be good to be able to see what you are hearing. Whether it can be fixed or not is step 2. Again something to have when throwing that kind of money on subs


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Subwoofers: Dual Rythmik FV18s Rev2 with Paper cone, BOSS Platform mini riser
Speakers: PSA MTM-210 L/C/R - Klipsch 250S Surrounds, PSA MT 110sr Rear Surrounds, 4 x SVS Prime Elevation for Atmos
Video: Epson PowerLite Home Cinema 6500 UB; Room: 2100 cuft sealed on suspended floor
Receiver & Players: Denon X4400H, Oppo UDP-203, Roku Ultra. Apple TV, Minidsp 2X4 HD
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post #47350 of 49679 Old 03-17-2019, 08:49 PM
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Quote:
Originally Posted by imureh View Post
Understood. But even a few inches here or there can make a difference. Plus it would be good to be able to see what you are hearing. Whether it can be fixed or not is step 2. Again something to have when throwing that kind of money on subs


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i never bothered posting about this but back over the summer fellow avs member @08op asked to stop over for a listen (a local that found my youtube channel that i've been neglecting lately). some time later he brought over a umik1 & we installed rew on my htpc. as expected there's a massive null & peak in the room because of the room mode which is to be expected given the location of all of the drivers (rear of the room spread horizontally). the only changes i can make are to either push/pull the seating forward/backward relative to the screen (not a fan of this as the seating is ideal in relation to all of the speaker locations in the room), pull the drivers closer to the seating or leave them against the rear wall. what we couldn't quite wrap our heads around at the time is we actually moved 1 of the subs to the front of the room and ran a sweep again and nothing changed--same dip, same null. it was at that point i stopped caring and just enjoyed what i have where it is, as is. i wish i had saved the results from rew in hindsight though, but when we ran the sweeps it read back somewhere in the range of around 130db's. we had the mic positioned at the MLP which is more or less the center of the room.


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post #47351 of 49679 Old 03-18-2019, 05:33 AM
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Quote:
Originally Posted by serith View Post
i never bothered posting about this but back over the summer fellow avs member @08op asked to stop over for a listen (a local that found my youtube channel that i've been neglecting lately). some time later he brought over a umik1 & we installed rew on my htpc. as expected there's a massive null & peak in the room because of the room mode which is to be expected given the location of all of the drivers (rear of the room spread horizontally). the only changes i can make are to either push/pull the seating forward/backward relative to the screen (not a fan of this as the seating is ideal in relation to all of the speaker locations in the room), pull the drivers closer to the seating or leave them against the rear wall. what we couldn't quite wrap our heads around at the time is we actually moved 1 of the subs to the front of the room and ran a sweep again and nothing changed--same dip, same null. it was at that point i stopped caring and just enjoyed what i have where it is, as is. i wish i had saved the results from rew in hindsight though, but when we ran the sweeps it read back somewhere in the range of around 130db's. we had the mic positioned at the MLP which is more or less the center of the room.


I had something similar (dip) at 63hz in my room and found it was height related. Not much I could do about that except correct as much as possible using minidsp. Again I would never have known that had I not measured.


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Subwoofers: Dual Rythmik FV18s Rev2 with Paper cone, BOSS Platform mini riser
Speakers: PSA MTM-210 L/C/R - Klipsch 250S Surrounds, PSA MT 110sr Rear Surrounds, 4 x SVS Prime Elevation for Atmos
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post #47352 of 49679 Old 03-18-2019, 06:34 AM
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Originally Posted by serith View Post

i played with the port plugs but using the subs at full tilt for even a short duration (~60sec?) started to make the room smell of melted voicecoil. i never used them with the port plugs again after that.
I hope you let the buyers of those subs know this because you more then likely shortened the life of those drivers.
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post #47353 of 49679 Old 03-18-2019, 06:56 AM
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Originally Posted by basshead81 View Post
I hope you let the buyers of those subs know this because you more then likely shortened the life of those drivers.
In what way? It would help if you explained how.

In many cases it is the smell of hot amplifier and not melting voicecoils that people detect. No?

Edit: I am truly asking, because I don't know.

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post #47354 of 49679 Old 03-18-2019, 07:32 AM
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Quote:
Originally Posted by Marc Alexander View Post
In what way? It would help if you explained how.

In many cases it is the smell of hot amplifier and not melting voicecoils that people detect. No?

Edit: I am truly asking, because I don't know.
The smell of a burning voice coil is not even close to the smell of warm electronics operating normally. The adhesives used to secure the coil winding starts to melt and burn giving off a pungent smell. At this point damage is being done. Now there are instances where a new driver can put off a odor the first few times its driven hard, but the room is not going to fill with the distinct smell of something burning.
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post #47355 of 49679 Old 03-18-2019, 03:15 PM
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A few pages back we were talking about the V36XX series and it's capabilities. I didn't go into details about the new home for my V3601's before but I will now. Believe it or not they went to my church. I was talking to my friend who is the worship minister and we started talking about how terrible the music sounds... and it's not the worship bands fault, its the speakers. The band plays contemporary worship music with drums, bass guitar, electric guitar, and piano so it can rock pretty good. But there was never any decent bass because the speakers were pulling double duty and what bass there was was muffled and muddy. So things sounded bad and thus the plan was hatched to see if the V3601's could help.

Most of you are probably imagining a conventional church with a steeple and all that. Not this church. This church is actually a large dome building with a ceiling 39 feet high at its peak (that's the radius) so I guess the width is close to 80 feet (the diameter). The room is massive. I've included a few pictures so you can visualize it. Just imagine all the reflections and echos that room must have.

Believe it or not I was never worried about the V3601's being powerful enough to at least give us some decent bass (anything was better than what we had) but I was really worried about it being uneven and spotty and possibly really boomy. I mean let's be real, it's hard enough situating subs in a small room how do you do it in a huge dome? But when we tried them out they actually sounded really good so we decided to go ahead and move them to the church. And as they've been dialed in over the last month they have gotten to the point of sounding incredible. The subs have no problem filling the sanctuary and for the first time the music in the church sounds great with tight, clean bass filling the the room. And the amazing thing is the subs are doing it all without even breaking a sweat... trust me, I've checked.

But what I really want to share is that this last Sunday I was a little stunned because when the drummer brought in the kick drum I felt every beat in my chest. I stood there thinking" "Is that chest slam at this low level? That's not fair, I rarely feel chest slam at home and I pushed these subs far harder than we are now." So I walked back to the sound board and talked with the operator and asked how the subs were EQ'd and he pulled up the screen showing a nice big lift centered at 60 Hz. Perhaps that helps explain some of it but I still didn't feel like it was at a loud enough level for me to feel it in my chest.

Anyway, I just wanted to share that story. if you wonder what these big subs can do... they can do quite a lot. The other night at practice they let the V3601's off the leash a little and the ceiling tiles out in the foyer were dancing. The teens liked that a lot.
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Subwoofers: PSA TV36 iPal X2 ...Speakers: PSA MTM-210T L/R - PSA MTM-210C Center- PSA MT110SR's Surrounds - RSL C34E Atmos... Motion Actuators: Crowson Shadow 8 - X2
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post #47356 of 49679 Old 03-18-2019, 03:28 PM
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Quote:
Originally Posted by Hopinater View Post
A few pages back we were talking about the V36XX series and it's capabilities. I didn't go into details about the new home for my V3601's before but I will now. Believe it or not they went to my church. I was talking to my friend who is the worship minister and we started talking about how terrible the music sounds... and it's not the worship bands fault, its the speakers. The band plays contemporary worship music with drums, bass guitar, electric guitar, and piano so it can rock pretty good. But there was never any decent bass because the speakers were pulling double duty and what bass there was was muffled and muddy. So things sounded bad and thus the plan was hatched to see if the V3601's could help.
…………………………………..
Anyway, I just wanted to share that story. if you wonder what these big subs can do... they can do quite a lot. The other night at practice they let the V3601's off the leash a little and the ceiling tiles out in the foyer were dancing. The teens liked that a lot.
Great story, thanks for sharing. How did you get the sub in the collection basket?
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post #47357 of 49679 Old 03-18-2019, 04:36 PM
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Quote:
Originally Posted by Hopinater View Post
A few pages back we were talking about the V36XX series and it's capabilities. I didn't go into details about the new home for my V3601's before but I will now. Believe it or not they went to my church. I was talking to my friend who is the worship minister and we started talking about how terrible the music sounds... and it's not the worship bands fault, its the speakers. The band plays contemporary worship music with drums, bass guitar, electric guitar, and piano so it can rock pretty good. But there was never any decent bass because the speakers were pulling double duty and what bass there was was muffled and muddy. So things sounded bad and thus the plan was hatched to see if the V3601's could help.

Most of you are probably imagining a conventional church with a steeple and all that. Not this church. This church is actually a large dome building with a ceiling 39 feet high at its peak (that's the radius) so I guess the width is close to 80 feet (the diameter). The room is massive. I've included a few pictures so you can visualize it. Just imagine all the reflections and echos that room must have.

Believe it or not I was never worried about the V3601's being powerful enough to at least give us some decent bass (anything was better than what we had) but I was really worried about it being uneven and spotty and possibly really boomy. I mean let's be real, it's hard enough situating subs in a small room how do you do it in a huge dome? But when we tried them out they actually sounded really good so we decided to go ahead and move them to the church. And as they've been dialed in over the last month they have gotten to the point of sounding incredible. The subs have no problem filling the sanctuary and for the first time the music in the church sounds great with tight, clean bass filling the the room. And the amazing thing is the subs are doing it all without even breaking a sweat... trust me, I've checked.

But what I really want to share is that this last Sunday I was a little stunned because when the drummer brought in the kick drum I felt every beat in my chest. I stood there thinking" "Is that chest slam at this low level? That's not fair, I rarely feel chest slam at home and I pushed these subs far harder than we are now." So I walked back to the sound board and talked with the operator and asked how the subs were EQ'd and he pulled up the screen showing a nice big lift centered at 60 Hz. Perhaps that helps explain some of it but I still didn't feel like it was at a loud enough level for me to feel it in my chest.

Anyway, I just wanted to share that story. if you wonder what these big subs can do... they can do quite a lot. The other night at practice they let the V3601's off the leash a little and the ceiling tiles out in the foyer were dancing. The teens liked that a lot.
Nice...Thanks for sharing Jim.


Just want to add, This is a prime example of why a large room doesn't mean lack luster bass...well it might below port tune, but from tune on up big rooms can sound really good. The spl was probably higher then you think, you just are not experiencing the reflections causing things to sound louder and harsher then what they really are in your home. This might be a eye opener for some room treatments!! The only negative thing I have heard in big spaces is reverb or echoing if you are too far away from the sound stage.
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Last edited by basshead81; 03-18-2019 at 04:39 PM.
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post #47358 of 49679 Old 03-18-2019, 04:38 PM
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post #47359 of 49679 Old 03-18-2019, 04:51 PM
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Quote:
Originally Posted by Marc Alexander View Post
@flat4 's and @climber07 's pics of getting the 7201s to the second story are truly legendary. I'm thinking many of these accomplishments deserve their own thread!

Basements can be challenging too. I'm thinking about @femi 's Orbit Shifters→Cap 4000ULFs and @serith 's Rythmik FV25s→Cap 4000ULFs just off the top of my head.
two people moving the Orbit Shifter's up and down the stairs wasn't too bad. But two people moving the Cap 4000's up the stairs was just a pain in the a$$. Next year when i do final decide to move the Cap 4000's into my basement, i will hire some professional movers to move them because i'm not going through that whole process again.

Femi

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post #47360 of 49679 Old 03-18-2019, 04:54 PM
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two people moving the Orbit Shifter's up and down the stairs wasn't too bad. But two people moving the Cap 4000's up the stairs was just a pain in the a$$.

Femi
This would make for a great Survivor Immunity Challenge!
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post #47361 of 49679 Old 03-18-2019, 05:31 PM
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I would bet your MTM 210s would sound real good in there too


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Originally Posted by Hopinater View Post
A few pages back we were talking about the V36XX series and it's capabilities. I didn't go into details about the new home for my V3601's before but I will now. Believe it or not they went to my church. I was talking to my friend who is the worship minister and we started talking about how terrible the music sounds... and it's not the worship bands fault, its the speakers. The band plays contemporary worship music with drums, bass guitar, electric guitar, and piano so it can rock pretty good. But there was never any decent bass because the speakers were pulling double duty and what bass there was was muffled and muddy. So things sounded bad and thus the plan was hatched to see if the V3601's could help.

Most of you are probably imagining a conventional church with a steeple and all that. Not this church. This church is actually a large dome building with a ceiling 39 feet high at its peak (that's the radius) so I guess the width is close to 80 feet (the diameter). The room is massive. I've included a few pictures so you can visualize it. Just imagine all the reflections and echos that room must have.

Believe it or not I was never worried about the V3601's being powerful enough to at least give us some decent bass (anything was better than what we had) but I was really worried about it being uneven and spotty and possibly really boomy. I mean let's be real, it's hard enough situating subs in a small room how do you do it in a huge dome? But when we tried them out they actually sounded really good so we decided to go ahead and move them to the church. And as they've been dialed in over the last month they have gotten to the point of sounding incredible. The subs have no problem filling the sanctuary and for the first time the music in the church sounds great with tight, clean bass filling the the room. And the amazing thing is the subs are doing it all without even breaking a sweat... trust me, I've checked.

But what I really want to share is that this last Sunday I was a little stunned because when the drummer brought in the kick drum I felt every beat in my chest. I stood there thinking" "Is that chest slam at this low level? That's not fair, I rarely feel chest slam at home and I pushed these subs far harder than we are now." So I walked back to the sound board and talked with the operator and asked how the subs were EQ'd and he pulled up the screen showing a nice big lift centered at 60 Hz. Perhaps that helps explain some of it but I still didn't feel like it was at a loud enough level for me to feel it in my chest.

Anyway, I just wanted to share that story. if you wonder what these big subs can do... they can do quite a lot. The other night at practice they let the V3601's off the leash a little and the ceiling tiles out in the foyer were dancing. The teens liked that a lot.
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post #47362 of 49679 Old 03-18-2019, 05:31 PM
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UK order for a PSA sub

I was very happy to order a S3611 sub from UK dealer Kalibrate by the end of january. The sub should have been shipped by the end of February... I have paid 1500 euros and unfortunately no information about the delay. Just "they had issues". After 2 months no sub... Does someone had a problem with Kalibrate UK ?
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post #47363 of 49679 Old 03-18-2019, 05:59 PM
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I was very happy to order a S3611 sub from UK dealer Kalibrate by the end of january. The sub should have been shipped by the end of February... I have paid 1500 euros and unfortunately no information about the delay. Just "they had issues". After 2 months no sub... Does someone had a problem with Kalibrate UK ?
It may have shipped and still be in transit but you will need to contact Kalibrate directly as they arrange all shipping from our location here in Ohio. I do remember we shipped a few S3611 but that had to be a month(or close to it now)?. No new orders have been placed since that.

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Also, there's a dedicated PSA thread in the UK audio forum as well that may offer quicker updates.


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post #47364 of 49679 Old 03-18-2019, 06:07 PM
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I would bet your MTM 210s would sound real good in there too
It's funny you bring that up because I was talking with the lead pastor today when I was up there taking the photos I posted and I told him if the speakers we have now fail I know what I would try first as a replacement... PSA MTM210T's.

Oh man they would make that place really come alive with awesome music.
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post #47365 of 49679 Old 03-18-2019, 08:17 PM
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I'll take this as a compliment! (Especially since they're in a totally different condo unit lol)
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post #47366 of 49679 Old 03-18-2019, 09:50 PM
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I hope you let the buyers of those subs know this because you more then likely shortened the life of those drivers.
that's akin to giving a detailed count of how many times you shifted at red-line, clutch dumped or drove aggressivly with a car and feeling guilty about selling it to a new owner--hint, no one does.

the subs were driven hard with the port plugs attached for probably 30 seconds to a minute at most, and the moment i smelled something i killed the power and let them cool down. another win for aluminium cone drivers is that they dissipate heat buildup very quickly. this happened back in late spring of last year and i put plenty of usage on them thereafter. anyone buying used equipment knows that sales are as is and you're generally buying at a discount in exchange for slightly higher risk. both new owners had the opportunity to beat the snot out of the subs prior to purchase and both were extremely happy with their purchases. thanks for your concern though.
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post #47367 of 49679 Old 03-19-2019, 01:48 AM
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I can't find the V3601s anywhere in the pics. Where are they? The baptismal pool (is that even a pool)?
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post #47368 of 49679 Old 03-19-2019, 07:05 AM
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I can't find the V3601s anywhere in the pics. Where are they? The baptismal pool (is that even a pool)?
They are off to the sides a little wider and out of the picture.

Yes that is a baptismal pool behind the stage.

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post #47369 of 49679 Old 03-19-2019, 07:23 AM
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that's akin to giving a detailed count of how many times you shifted at red-line, clutch dumped or drove aggressivly with a car and feeling guilty about selling it to a new owner--hint, no one does.

the subs were driven hard with the port plugs attached for probably 30 seconds to a minute at most, and the moment i smelled something i killed the power and let them cool down. another win for aluminium cone drivers is that they dissipate heat buildup very quickly. this happened back in late spring of last year and i put plenty of usage on them thereafter. anyone buying used equipment knows that sales are as is and you're generally buying at a discount in exchange for slightly higher risk. both new owners had the opportunity to beat the snot out of the subs prior to purchase and both were extremely happy with their purchases. thanks for your concern though.
That isn't really a apples to apples comparison being most performance oriented cars are designed and warrantied for that kind of use in stock form. If the car had a custom tune and modded for a big increase in HP, then yea. However, you plugged all ports on the FV25's which they are NOT designed for and ran a low frequency tone at extreme levels until you smelled the burn. Aluminum cone or not what you smelled was the voice coil resin burning. 30 seconds is more then enough time to nuke a VC playing with test tones. Either hopefully the new owners have no issue. If they do I am sure Brian will take care of them.
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post #47370 of 49679 Old 03-19-2019, 10:35 AM
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Quote:
Originally Posted by Hopinater View Post
They are off to the sides a little wider and out of the picture.

Yes that is a baptismal pool behind the stage.
I'm not surprised the 3601s rock that room. A round/domed room is the perfect room for bass...actually inside an enclosed sphere would be "perfect", but close enough.
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