Buttkicker LFE for movie. Receiver or Amp - Page 2 - AVS Forum | Home Theater Discussions And Reviews
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post #31 of 106 Old 03-22-2018, 04:07 PM
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Quote:
Originally Posted by Candle View Post
But 500 Watt is just enough for 1 earthquake MQB-1.
Are you planning to use 1 plate amp for every earthquake than?
I was thinking of going that route once myself.
No I was thinking wiring them up so they produce 250 watts per transducer. If that is even possible I’m not familiar with loads and wiring. This amp is 4ohm and the transducers are 8. But with no fan to worry about it may be worth looking into. I guess one amp per transducer is an option but then you have the load issues so you will probably not get 500wAtts into 8ohms when using a 4ohm amp, unless I’m missing something. Well after searching on the net I did find a diagram on how to wire two 8ohm speakers to a 4ohm amp. The question is how much power do these earthquakes need? 500 max but how do they do with less power.

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post #32 of 106 Old 03-22-2018, 04:13 PM
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Quote:
Originally Posted by darthray View Post
I should have also mention, when I say not enough power.
The TT did bottom out a few time, due to lack of power, a loud Clack


Ray
Do you own the earthquakes or buttkickers?
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post #33 of 106 Old 03-22-2018, 04:24 PM
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post #34 of 106 Old 03-23-2018, 06:15 AM
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Quote:
Originally Posted by keeper View Post
No I was thinking wiring them up so they produce 250 watts per transducer. If that is even possible I’m not familiar with loads and wiring. This amp is 4ohm and the transducers are 8. But with no fan to worry about it may be worth looking into. I guess one amp per transducer is an option but then you have the load issues so you will probably not get 500wAtts into 8ohms when using a 4ohm amp, unless I’m missing something. Well after searching on the net I did find a diagram on how to wire two 8ohm speakers to a 4ohm amp. The question is how much power do these earthquakes need? 500 max but how do they do with less power.

If you have two 8 ohm transducers (BKA LFE) and you have a 4 ohm stable amp (500W @ 8ohm, so ~1000W @ 4 ohm), then:


2 transducers wired in series = 16 ohm load to amp, ~250W each
2 transducers wired in parallel = 4 ohm load to amp, ~500W each

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post #35 of 106 Old 03-23-2018, 07:47 AM
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Quote:
Originally Posted by 0100010 View Post
Quote:
Originally Posted by keeper View Post
No I was thinking wiring them up so they produce 250 watts per transducer. If that is even possible I’m not familiar with loads and wiring. This amp is 4ohm and the transducers are 8. But with no fan to worry about it may be worth looking into. I guess one amp per transducer is an option but then you have the load issues so you will probably not get 500wAtts into 8ohms when using a 4ohm amp, unless I’m missing something. Well after searching on the net I did find a diagram on how to wire two 8ohm speakers to a 4ohm amp. The question is how much power do these earthquakes need? 500 max but how do they do with less power.

If you have two 8 ohm transducers (BKA LFE) and you have a 4 ohm stable amp (500W @ 8ohm, so ~1000W @ 4 ohm), then:


2 transducers wired in series = 16 ohm load to amp, ~250W each
2 transducers wired in parallel = 4 ohm load to amp, ~500W each
Thanks a lot.
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post #36 of 106 Old 03-23-2018, 07:51 AM - Thread Starter
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Quote:
Originally Posted by 0100010 View Post
If you have two 8 ohm transducers (BKA LFE) and you have a 4 ohm stable amp (500W @ 8ohm, so ~1000W @ 4 ohm), then:


2 transducers wired in series = 16 ohm load to amp, ~250W each
2 transducers wired in parallel = 4 ohm load to amp, ~500W each
Parallel means all +'s attached to each other and all -'s attached to each other.
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post #37 of 106 Old 03-23-2018, 09:28 AM
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Quote:
Originally Posted by 0100010 View Post
Great thread! I've got both the BKA-1000 amp and BK-LFE transducer that I haven't used in years (due to the LFE bottoming out). Will have to look into those MQB-1s...
I have a Dayton Audio APA150 amp and two Buttkicker mini-LFEs on my sofa. Mounted to a board, which is mounted to the frame. I do need to get a line booster to boost the signal into my APA150 (so I can back the level off of max). Not sure even 2 minis are up to the task of shaking my sofa. Would like to try a full size Buttkicker (which would mean a bigger amp). Anyone interested in selling (or lending on a trial basis) a full size Buttkicker and amp?

Ps adding the Buttkickers is what I had been missing for years.

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post #38 of 106 Old 03-23-2018, 06:59 PM
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Quote:
Originally Posted by darthray View Post
Buttkickers


Ray
Quote:
Originally Posted by keeper View Post
Do you own the earthquakes or buttkickers?

Forgot to mention,
These are the ones, I use;
https://thebuttkicker.com/buttkicker-lfe/


And for power amp, these;
Outlaw Audio 2200 x 2, (single channel at 200 watts under 8 Ohms/300 watts under 4 Ohms load, from 20 to 20000Hz), for the 2 buttkickers.
https://www.outlawaudio.com/products/2200.html


While the Amps are not strong enough, to be operate at high volume with a lot of low bass content.
Also mention on the buttkickers description and to quote them;
"The ButtKicker LFE requires a minimum of 400 watts and we recommend a maximum of 1500 watts"


I must admit, that the original novelty of wanting Tactile feeling, is now long gone
All I need now a day, is only a little bit when warranted, just enough to add to the experience


Ray

Last edited by darthray; 03-23-2018 at 07:25 PM.
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post #39 of 106 Old 03-23-2018, 07:42 PM
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Quote:
Originally Posted by keeper View Post
No I was thinking wiring them up so they produce 250 watts per transducer. If that is even possible I’m not familiar with loads and wiring. This amp is 4ohm and the transducers are 8. But with no fan to worry about it may be worth looking into. I guess one amp per transducer is an option but then you have the load issues so you will probably not get 500wAtts into 8ohms when using a 4ohm amp, unless I’m missing something. Well after searching on the net I did find a diagram on how to wire two 8ohm speakers to a 4ohm amp. The question is how much power do these earthquakes need? 500 max but how do they do with less power.

This can be found, somewhere in this thread, at the beginning if I recall and some more through out the thread (very long time, since I visited that thread);
Shakers - Simple/Cheap Hookup - Visual Guide


With some diagrams to help you understand "load and wiring".
Diagrams, like Pictures, can speak a thousand words


Ray
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Last edited by darthray; 03-23-2018 at 07:49 PM.
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post #40 of 106 Old 03-24-2018, 01:18 AM
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Quote:
Originally Posted by darthray View Post
This can be found, somewhere in this thread, at the beginning if I recall and some more through out the thread (very long time, since I visited that thread);
Shakers - Simple/Cheap Hookup - Visual Guide


With some diagrams to help you understand "load and wiring".
Diagrams, like Pictures, can speak a thousand words


Ray
Thank you!
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post #41 of 106 Old 03-24-2018, 06:14 AM
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Originally Posted by keeper View Post
Thank you!
See also : https://geoffthegreygeek.com/calcula...s-in-parallel/
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post #42 of 106 Old 03-24-2018, 09:27 AM - Thread Starter
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I lost it.
Crown Amps are quiet which is nice, and they look good, specially the XLi.
They have several series to choose from.
Crown XLi 2500 vs XTi 2002 vs XLS 2002.
The XLS has no DSP and the XLi is a lot cheaper than the XTi, but will it perform as good as the XTi?
Have someone tried them all?
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post #43 of 106 Old 03-24-2018, 12:14 PM
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Quote:
Originally Posted by Candle View Post
I lost it.
Crown Amps are quiet which is nice, and they look good, specially the XLi.
They have several series to choose from.
Crown XLi 2500 vs XTi 2002 vs XLS 2002.
The XLS has no DSP and the XLi is a lot cheaper than the XTi, but will it perform as good as the XTi?
Have someone tried them all?
Thought the XLS did have dsp?
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post #44 of 106 Old 03-24-2018, 12:47 PM - Thread Starter
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Thought the XLS did have dsp?
Hmmm, again I've read that the XLS has inferieur Subs, compared to the XLi as well, as I also read compared to the XTi.
According to Crown, the XLi and CTs will not roll off below 20 like the XLS, but typically the DC/LF circuit will be triggered below 10 in these XLi model serie.

So now I try to find out what more I gain from a XTi 2002 compared to a XLi 2500, since you pay a third more for the XTi.
I watched videos and the XTi have DSP that works by your PC connection, and have a lot of options which the XLi don't have.
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Last edited by Candle; 03-24-2018 at 02:00 PM.
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post #45 of 106 Old 03-24-2018, 01:07 PM
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post #46 of 106 Old 03-24-2018, 02:03 PM - Thread Starter
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Edit post 44 a lot.
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post #47 of 106 Old 03-24-2018, 02:30 PM
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I just purchased a pair of earthquakes and am now deciding on an amp. Needs to be very quiet as it will be behind my seating. Picking up a used Buttkicker 1000 is leading my options right now
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post #48 of 106 Old 03-24-2018, 02:41 PM - Thread Starter
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I just purchased a pair of earthquakes and am now deciding on an amp. Needs to be very quiet as it will be behind my seating. Picking up a used Buttkicker 1000 is leading my options right now
Good luck on that, and please keep us posted.
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post #49 of 106 Old 03-25-2018, 11:42 AM - Thread Starter
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I'm sorry.
Here it sais the XLS does have DSP.
https://www.crownaudio.com/en/products/xls-1502
But for shakers you need it to get lower than the 20Hz rolloff.
Also, the XLi is the lesser of this 2 series.
So if I want a quiet Amp, DSP, and 10Hz , I'm back to the more expensive XTi 2002, or try to get myself a BKA1000- N as well, but it will be difficult.
If I'm there I'll let you know as well.

Last edited by Candle; 03-25-2018 at 11:57 AM.
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post #50 of 106 Old 03-25-2018, 12:24 PM
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I'm sorry.
Here it sais the XLS does have DSP.
https://www.crownaudio.com/en/products/xls-1502
But for shakers you need it to get lower than the 20Hz rolloff.
Also, the XLi is the lesser of this 2 series.
So if I want a quiet Amp, DSP, and 10Hz , I'm back to the more expensive XTi 2002, or try to get myself a BKA1000- N as well, but it will be difficult.
If I'm there I'll let you know as well.
I thought I read I’d it did. The earthquakes are rated at 15hz. So is spending all that cash for 20-15 hz worth it. I don’t know that’s a question I have to ask myself. The nice thing about the crown is that you can use for diy projects also.
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post #51 of 106 Old 03-25-2018, 03:19 PM
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Originally Posted by Candle View Post
What options do I have to reach 5Hz?
http://www.speakerpower.net/

Haven't seen this one mentioned yet. Is more expensive, but gets you to 5Hz like you mentioned
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post #52 of 106 Old 03-26-2018, 05:39 AM
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The BKA1000- N has been "out of stock" due to "redesign" for a while now.
Does anyone have an update on the status and when it will be available again?
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post #53 of 106 Old 03-26-2018, 08:07 AM - Thread Starter
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I'm so very glad with you all.
This way we will accomplish something.


Quote:
Originally Posted by keeper View Post
I thought I read I’d it did. The earthquakes are rated at 15hz. So is spending all that cash for 20-15 hz worth it. I don’t know that’s a question I have to ask myself. The nice thing about the crown is that you can use for diy projects also.
I've read from someone who wrote he clearly could hear and feel the difference between the XLS and the XTi on his Subwoofers, because of the rolloff.
So probably with the Earthquake MQB-1 as well.


Quote:
Originally Posted by Tyborg View Post
http://www.speakerpower.net/
Haven't seen this one mentioned yet. Is more expensive, but gets you to 5Hz like you mentioned
Thanks for this link.
THe SP2-1400 seems to be the one we need for driving 2 Earthquake MQB-1's. It is a Plate Amp I believe, so it has to be very quiet.
Any experience with this Amps?


Quote:
Originally Posted by humbland View Post
The BKA1000- N has been "out of stock" due to "redesign" for a while now.
Does anyone have an update on the status and when it will be available again?
Tried to find one myself but could not.
I emailed about this question as well yesterday, and still waiting for an answer

Last edited by Candle; 03-26-2018 at 08:12 AM.
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post #54 of 106 Old 03-26-2018, 09:22 AM
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Originally Posted by humbland View Post
The BKA1000- N has been "out of stock" due to "redesign" for a while now.
Does anyone have an update on the status and when it will be available again?
What’s the n vs r for this amp? I’m thinking N is the newer model.
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Quote:
Originally Posted by Candle View Post
Thanks for this link.
THe SP2-1400 seems to be the one we need for driving 2 Earthquake MQB-1's. It is a Plate Amp I believe, so it has to be very quiet.
Any experience with this Amps?
No personal experience with them. Hoping to have some experience in the future when I purchase some JTR subs that use them. If I am not happy with the TR from the JTR subs on my concrete floor then I’m planning to have Crowson MAs as a backup with a speakerpower amp. They have the option for plate amps as well as rack mountable amps on the website.
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post #56 of 106 Old 03-26-2018, 01:47 PM
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Got my pair of earthquakes today. They aren’t real big so that’s good- more mounting options. Looking for an amp. Will hopefullly wire up this weekend when I have some time. Wonder what’s better mounting with or without bracket that comes with them? Will use wood on bottom of steel frame of chair. What wood is preferred?
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post #57 of 106 Old 03-27-2018, 01:48 AM - Thread Starter
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I wrote the Dayton SPA1000 off due to the Butkicker LFE 5Hz story which they don't deliver, because they seem to bottom out.
Now the Earthquake MQB-1 go as low as 15Hz, but some experienced them to go lower than the Butkicker LFE.
Having the 15Hz in mind, maybe the Dayton SPA1000 isn't so bad at all?
The Dayton SPA1000 Spec. say: 18 - 80Hz and 497 Watt in 8 Ohms and is having DSP and no fan, so it will be quiet.
Any thoughts on this?
Will the Dayton SPA1000 be a perfect match or good enough for a Earthquake MQB-1 Shaker/Transducer?
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post #58 of 106 Old 03-27-2018, 04:37 PM
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I called buttkicker and was told the Dayton amp was the best choice. He also said they are coming out with a new amp as a replacement amp for the 1000 amp and should be available this summer.
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post #59 of 106 Old 03-28-2018, 12:18 AM - Thread Starter
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Perfect.
I received a mesage from a shop myself, and they said the same thing, about a new version.
Question now is,...
Do I go for the Dayton SPA1000, or wait for the new BKA1000.
The former BKA 1000-N was compact, silent and had DSP like abilleties, with extra kick in the lower frequenties and goes from 5 - 200 Hz.

Last edited by Candle; 03-28-2018 at 12:31 AM.
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post #60 of 106 Old 03-28-2018, 01:02 AM
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Quote:
Originally Posted by Candle View Post
Perfect.
I received a mesage from a shop myself, and they said the same thing, about a new version.
Question now is,...
Do I go for the Dayton SPA1000, or wait for the new BKA1000.
The former BKA 1000-N was compact, silent and had DSP like abilleties, with extra kick in the lower frequenties and goes from 5 - 200 Hz.
You could be waiting awhile.
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