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Seaton Sound SubMersive1 - Page 249

post #7441 of 9372
Just for fun...
post #7442 of 9372
Happy Thanksgiving to all bassheads here! I know we were/are all itching to show off our submersives' capabilities to family and friends who have no idea what a "subwoofer" is.
post #7443 of 9372
I've discovered a problem with my F2's. I noticed that the whole house shakes every time when I play anything that has low frequencies - even at moderate levels. Can anyone help me? rolleyes.gif

HAPPY THANKSGIVING to all of my american friends.
post #7444 of 9372
Quote:
Originally Posted by rx-8 View Post

I've discovered a problem with my F2's. I noticed that the whole house shakes every time when I play anything that has low frequencies - even at moderate levels. Can anyone help me? rolleyes.gif

Lol.....But alas, that is a wonderful "problem" that many "un-submersed" enthusiasts WISH they had smile.gif
post #7445 of 9372
And all I did was sit and grin the whole way through the video. LOL.

Happy Thanksgiving guys.

...............biggrin.gif
post #7446 of 9372
Quote:
Originally Posted by ez-v View Post

I have a strange issue with my Submersive HP:

Whenever the subwoofer amp is on but there isn't an input signal (e.g., my AVR is off), the subwoofer starts picking up and amplifying radio signals. I can basically hear the radio through my subwoofer at low levels. Doesn't happen when my AVR is on... The sub is perfectly silent then.

Never had this happen before with the other subs I have owned.

Any of you experience this or know how to remedy this odd phenomenon?
LOL, I had the same issue too. Oddly enough, it never happened when they were hooked up to the Onkyo 5008. It only began happening when I had to send the 5008 in for servicing and hooked them up to the Oppo BDP-93's multichannel analog outputs (basically connecting all the speakers directly to the Oppo 93 since they all have external amplification).

When the Oppo was ON, even if it wasn't playing anything, the whole system was silent. It was only when I turned the Oppo OFF that the SubM HP's would pick up radio broadcasts... for about 20-30 seconds, then it would fade away back to silence. The first couple of times it happened was late at night and I thought some dumbass was blasting their stereo so loud late at night, that I could hear it inside with all the doors and windows closed. The fact that it only happens (in my case anyway) for the first 20-30 seconds after the Oppo is turned OFF and then fades away added to the assumption that it was external noise, until I pinpointed that the sound was coming from the subs.

Now that the 5008 is back, it doesn't happen anymore. I don't know what exactly it is about the 5008 and Oppo's analog/RCA pre-outs that are different that cause this to only happen with one but not the other. Or why it only happens for 20-30 seconds. Almost seems like while some capacitors or something in the Oppo retain a residual charge, it becomes a radio antenna, and once the residual charge fades in 20-30 seconds, so does its tendency to become a radio receiver.


Max
post #7447 of 9372
Just won the winning bid for a Submersive HP on epay for $1487.74. This will now give me Quads in my HT room!
post #7448 of 9372
Quote:
Originally Posted by bsoko2 View Post

Just won the winning bid for a Submersive HP on epay for $1487.74. This will now give me Quads in my HT room!

Congrats on the score.
post #7449 of 9372
Wow, great price - nice job. I'm a bit jealous...smile.gif
post #7450 of 9372
Quote:
Originally Posted by carp View Post

Wow, great price - nice job. I'm a bit jealous...smile.gif

NOW I am done!!!!
post #7451 of 9372
^^^

are you gonna make me go find the previous posts from you that said you were "done"? tongue.gif

quads... damn... my manhood just shrank... redface.gif
post #7452 of 9372
Who in their right mind let an HP go for under 1500?? I think Christmas came early for you!
post #7453 of 9372
Quote:
Originally Posted by bsoko2 View Post

Just won the winning bid for a Submersive HP on epay for $1487.74. This will now give me Quads in my HT room!

 

Way, way cool!!  Fantastic price too! smile.gifcool.gifbiggrin.gif

post #7454 of 9372
Quote:
Originally Posted by bsoko2 View Post

NOW I am done!!!!

I've heard THAT before. In that size room, you will have a huge opportunity to really hurt yourself. I have 4 in a room a good bit larger than yours and it can get really, really scary!

Congrats (It must have been a very desperate person to sell at that price). I wonder what he "upgraded" to?
post #7455 of 9372
Quote:
Originally Posted by audioguy View Post

I've heard THAT before. In that size room, you will have a huge opportunity to really hurt yourself. I have 4 in a room a good bit larger than yours and it can get really, really scary!
Congrats (It must have been a very desperate person to sell at that price). I wonder what he "upgraded" to?

Baby on the way and moving to a new home with less room.
post #7456 of 9372
Quote:
Originally Posted by bsoko2 View Post

This will now give me Quads in my HT room!
Quote:
Originally Posted by audioguy View Post

I've heard THAT before. In that size room, you will have a huge opportunity to really hurt yourself. I have 4 in a room a good bit larger than yours and it can get really, really scary!

Sorry for this naive question but with three Submersives I assume you can play reference with no distortion and your frequency response is fine, what is the advantage of adding another sub?

I have four Maestros and one Submersive in a 20x40 room and I was wondering if adding a second Submersive would provide any benefit.
post #7457 of 9372
Quote:
Originally Posted by audioguy View Post

...............Congrats (It must have been a very desperate person to sell at that price). I wonder what he "upgraded" to?

   Sometimes people just have to downsize. I have the two SubM's that belonged to the person that started this thread. (He
had to go to China, I believe)

post #7458 of 9372
Quote:
Originally Posted by GGA View Post

Sorry for this naive question but with three Submersives I assume you can play reference with no distortion and your frequency response is fine, what is the advantage of adding another sub?
I have four Maestros and one Submersive in a 20x40 room and I was wondering if adding a second Submersive would provide any benefit.

In my case, two was enough but the placement was asymmetrical to get flat FR and my OCD nature would not allow it, so I got two more. Assuming you have adequate headroom (don't know much about your Maestros) and flat FR I can't think of any reason to get another SubM UNLESS your other subs don't dig as low as the SubM's.
post #7459 of 9372
Hey guys,

Anyone else not able to communicate with Seaton sound? Waited all last week for them to get back to me regarding my submersive order, but no update. Is it because of thanksgiving? Not familiar with how the tradition works as it isn't celebrated in my country! Or maybe I've just annoyed them too much with my countless questions and emails. tongue.gif
Edited by Ashi777 - 11/26/12 at 3:02am
post #7460 of 9372
Ashi777

Many businesses here close for the week of Thanksgiving and Christmas....then there is New Year, Valentines Day, Groundhog Day..... smile.gif
post #7461 of 9372
Quote:
Originally Posted by ez-v View Post

I have a strange issue with my Submersive HP:

Whenever the subwoofer amp is on but there isn't an input signal (e.g., my AVR is off), the subwoofer starts picking up and amplifying radio signals. I can basically hear the radio through my subwoofer at low levels. Doesn't happen when my AVR is on... The sub is perfectly silent then.

Never had this happen before with the other subs I have owned.

Any of you experience this or know how to remedy this odd phenomenon?

 

Quote:
Originally Posted by djbluemax1 View Post

LOL, I had the same issue too. Oddly enough, it never happened when they were hooked up to the Onkyo 5008. It only began happening when I had to send the 5008 in for servicing and hooked them up to the Oppo BDP-93's multichannel analog outputs (basically connecting all the speakers directly to the Oppo 93 since they all have external amplification).

When the Oppo was ON, even if it wasn't playing anything, the whole system was silent. It was only when I turned the Oppo OFF that the SubM HP's would pick up radio broadcasts... for about 20-30 seconds, then it would fade away back to silence. The first couple of times it happened was late at night and I thought some dumbass was blasting their stereo so loud late at night, that I could hear it inside with all the doors and windows closed. The fact that it only happens (in my case anyway) for the first 20-30 seconds after the Oppo is turned OFF and then fades away added to the assumption that it was external noise, until I pinpointed that the sound was coming from the subs.

Now that the 5008 is back, it doesn't happen anymore. I don't know what exactly it is about the 5008 and Oppo's analog/RCA pre-outs that are different that cause this to only happen with one but not the other. Or why it only happens for 20-30 seconds. Almost seems like while some capacitors or something in the Oppo retain a residual charge, it becomes a radio antenna, and once the residual charge fades in 20-30 seconds, so does its tendency to become a radio receiver.


Max

 

 

I asked an electrical engineer friend of mine (who also happens to be a Radio Ham) and this was his reply:

 

 

"TBH, it's difficult to say without seeing the exact hookup & the schematics of the kit involved, but yes, it's not inconceivable.

 

The outputs of the Oppo are dynamic, i.e. from an active component, either a discrete transistor or an IC.

 

When there is NO power they probably represent a finite, lowish impedance to ground, which will probably look like a short-circuit to radio interference picked up on the cabling.

 

When the power is ON, the output impedance is invariably low, because that's how we engineers like most outputs, & again, signal pickup will be attentuated.

 

However, when the equipment has its power switched off, depending on the design, it may well take 10 or 20 or more seconds to discharge the power supply from its normal level to zilch.

 

The electronics are designed to operate correctly at the normal power (voltage) level; what happens when that voltage is seriously lower than that can be anyone's guess, but the engineer would prefer to say it's "indeterminate".  :)

 

It's quite possible that the output stages are oscillating briefly as they power down, or maybe have just drifted into a high-impedance state.  Either way, they are allowing radio signal pickup to exist on the cabling to the sub which, as it has its own amp, is amplifying it to an audible level.

 

Nothing to worry about, particularly."

post #7462 of 9372
That's what I would have said.
post #7463 of 9372
I know ideally you should have a dedicated 20a breaker, but would my current 15a outlet be able to handle the hp amp or would i be tripping the breaker all of the time. i don't listen at reference(usually -10/-15). my add'l equipment is fairly efficient meaning averaging 150 total watts on a normal bases.
post #7464 of 9372
Quote:
Originally Posted by airgas1998 View Post

I know ideally you should have a dedicated 20a breaker, but would my current 15a outlet be able to handle the hp amp or would i be tripping the breaker all of the time. i don't listen at reference(usually -10/-15). my add'l equipment is fairly efficient meaning averaging 150 total watts on a normal bases.

See page three.

My understanding, the max draw on a HP is 800w. The draw on your 15A circuit, is the combined total of each appliance that's attached. And a 15A breaker can handle 40A for approximately ten seconds. For comparison, currently, dryer not being run, our home is using about a kW of energy.

It's all about wire gauge and temperature of the wire as to one flaming their home. A 15A breaker/wire system should be able to handle a constant flow of electricity (1,800W) for an unrestricted amount of time. Based on the linked to graph, you do the math to see if you're good.
post #7465 of 9372
Quote:
Originally Posted by airgas1998 View Post

I know ideally you should have a dedicated 20a breaker, but would my current 15a outlet be able to handle the hp amp or would i be tripping the breaker all of the time. i don't listen at reference(usually -10/-15). my add'l equipment is fairly efficient meaning averaging 150 total watts on a normal bases.

If you have a dedicated 15A circuit AND your volume is set below reference (-15 through -10dB as stated above) you shouldn't have an issue with the breaker.
post #7466 of 9372
Quote:
Originally Posted by kbarnes701 View Post

Quote:
Originally Posted by ez-v View Post

I have a strange issue with my Submersive HP:


Whenever the subwoofer amp is on but there isn't an input signal (e.g., my AVR is off), the subwoofer starts picking up and amplifying radio signals. I can basically hear the radio through my subwoofer at low levels. Doesn't happen when my AVR is on... The sub is perfectly silent then.


Never had this happen before with the other subs I have owned.


Any of you experience this or know how to remedy this odd phenomenon?
Quote:
LOL, I had the same issue too. Oddly enough, it never happened when they were hooked up to the Onkyo 5008. It only began happening when I had to send the 5008 in for servicing and hooked them up to the Oppo BDP-93's multichannel analog outputs (basically connecting all the speakers directly to the Oppo 93 since they all have external amplification).


When the Oppo was ON, even if it wasn't playing anything, the whole system was silent. It was only when I turned the Oppo OFF that the SubM HP's would pick up radio broadcasts... for about 20-30 seconds, then it would fade away back to silence. The first couple of times it happened was late at night and I thought some dumbass was blasting their stereo so loud late at night, that I could hear it inside with all the doors and windows closed. The fact that it only happens (in my case anyway) for the first 20-30 seconds after the Oppo is turned OFF and then fades away added to the assumption that it was external noise, until I pinpointed that the sound was coming from the subs.


Now that the 5008 is back, it doesn't happen anymore. I don't know what exactly it is about the 5008 and Oppo's analog/RCA pre-outs that are different that cause this to only happen with one but not the other. Or why it only happens for 20-30 seconds. Almost seems like while some capacitors or something in the Oppo retain a residual charge, it becomes a radio antenna, and once the residual charge fades in 20-30 seconds, so does its tendency to become a radio receiver.

I asked an electrical engineer friend of mine (who also happens to be a Radio Ham) and this was his reply:

"TBH, it's difficult to say without seeing the exact hookup & the schematics of the kit involved, but yes, it's not inconceivable.

It's quite possible that the output stages are oscillating briefly as they power down, or maybe have just drifted into a high-impedance state.  Either way, they are allowing radio signal pickup to exist on the cabling to the sub which, as it has its own amp, is amplifying it to an audible level.

Nothing to worry about, particularly."

Hi guys,

I see I missed this over the holiday. Generally this comes from RCA connections and grounding complexities in a system, especially once switched off. Insuring the SubMersive's 3rd pin is grounded (when you first turn on the sub if it slowly flashes red 9-10x that indicates no safety ground connection). You then want to see if it is possible to run a ground connection to the chassis of the receiver, preamp or other component the SubMersive is directly connected to. As I've noted elsewhere, many receivers still have a phono input, and the ground lug provided for this is a great point to connect the power ground. Many of the Panamax, Triplite Surge-X and similar protection products include a ground lug which you can connect to with any zip cord or speaker wire.

In simple terms the length of the cable acts as an antenna when you don't have anything connected on the one end. Turning on the receiver effectively mutes/shorts that end vs. when it's turned off.
post #7467 of 9372
Quote:
Originally Posted by Sick Mother View Post

That's what I would have said.

 

Haha - me too :)

post #7468 of 9372
Quote:
Originally Posted by airgas1998 View Post

I know ideally you should have a dedicated 20a breaker, but would my current 15a outlet be able to handle the hp amp or would i be tripping the breaker all of the time. i don't listen at reference(usually -10/-15). my add'l equipment is fairly efficient meaning averaging 150 total watts on a normal bases.

While there will be brief spikes of high power draw, the efficiency of the HP amplifier means you never really pull much more power than goes to the woofers, vs. class A/B amps which can draw 2-4x the power going to the driver. In real use you could get away with up to 2 SubMersive HP's and then may have a rare case when you might be able to pop a breaker with lots of sustained deep bass content below 25Hz. I wouldn't worry at all about a single SubMersive HP in the situation you describe. In the grand scheme of things, electrical upgrades can be very inexpensive compared to components, with the only caveat being access. Being in Chicago I'm very used to having conduit run everywhere, making changes much more feasible than in some cases. Assuming there is room in the panel, it would be the exception for an appropriate electrical upgrade to fall outside of a $150-500 price range, depending on accessibility and local electrical codes.
post #7469 of 9372
I woke up this morning and the amp on one of my HP's is blinking 4 times. I need to call mark to troubleshoot. Since it is still a little early for phone calls does
anyone have any ideas. I have checked all connections but 4 blinks means internal.
Thanks
Chris
post #7470 of 9372
Chris, I think that's the issue I had. 4 blinking lights. I just unplugged it for a few seconds, then plugged it back it. It worked for me. Again, I think it was 4 blinking lights.
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