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New speakerpower rack mounted subwoofer amps - Page 2

post #31 of 51
1/25/13 at 1:20pm
Quote:
I'd suggest you give a unit to someone to test, IMO thats the only way you are going to get customers like us at your price point. There is a TON of amps that will do a great job at 1/3 the cost, you have to do something much better than another to warrant the extra cost. If the Speaker Power amps really do put out what they say and you have 3rd party results to prove it

I have had some third party testing from pro sound people. http://soundforums.net/product-reviews/1315-speakerpower-torpedo-sp1-4000-plate-amp.html

Granted HT is different. Who do you recommend to test one? It is not easy to do at this power level. I have 50A mains service, a 50A variac, Valhalla 2301 power analyzer with 100A shunt, Audio Precision with burst option, bank of 8 x 8 ohm 1000W noninductive resistors etc.

I would be interested in testing one of the FP14000 clones under the same conditions I tested the real one if someone would loan me one.

Brian
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post #32 of 51
1/25/13 at 1:29pm
Quote:
Originally Posted by cookieattk View Post

or i could http://www.behringer.com/EN/Products/NU12000DSP.aspx smile.gif
WTH!

When did that happen? Hummm.... Under $1k and things might get interesting...
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post #33 of 51
1/25/13 at 2:04pm
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Originally Posted by popalock View Post

WTH!

When did that happen? Hummm.... Under $1k and things might get interesting...

NAMM 2013 smile.gif was looking for rms numbers for 6000 and noticed it giggled inside hopefully it will run off 220v b/c i already have 220v 30amp for a lathe i own smile.gif
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post #34 of 51
1/25/13 at 2:07pm
Quote:
Originally Posted by popalock View Post

WTH!

When did that happen? Hummm.... Under $1k and things might get interesting...



NU12000 and if you've got the minidsp already you're golden. smile.gif
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post #35 of 51
1/25/13 at 2:28pm
But does it do <20hz?
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post #36 of 51
1/26/13 at 4:29pm
It does exhibit rolloff below 20Hz. Here's a good discussion on the topic: http://www.avsforum.com/t/1451094/behringer-inuke-lf-performance-with-low-impedance-load
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post #37 of 51
1/29/13 at 7:47pm
Quote:
Originally Posted by SpeakerPower View Post

I have benchmarked my amps against the real Lab Gruppen FP14000 and the Pascal Xpro "2400W" amps used by FW. Here is what I measured.

Pascal Xpro3 CH1 only 120VAC mains
1400W/4 1KHz 1% for 2 seconds, dropping to 223W after that
730W/4 40Hz 1% for 10 seconds dropping to 223W after that. Lower frequencies are even worse.

Brian,

Are you sure you were not actually measuring one of the 700W channels on this amp??
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post #38 of 51
1/31/13 at 9:40am
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Are you sure you were not actually measuring one of the 700W channels on this amp??

Yes absolutely. I would not have measured 1400W 1KHZ 1% if it was CH2 or CH3. BTW I just measured CH2 by itself and got 360W 8 ohms 560W 4 ohms at 1Khz. I am not going to try sub frequencies on this half bridge channel and risk blowing it with power supply pumping.
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post #39 of 51
1/31/13 at 2:27pm
Quote:
Originally Posted by SpeakerPower View Post

Yes absolutely. I would not have measured 1400W 1KHZ 1% if it was CH2 or CH3. BTW I just measured CH2 by itself and got 360W 8 ohms 560W 4 ohms at 1Khz. I am not going to try sub frequencies on this half bridge channel and risk blowing it with power supply pumping.

Brian,

I'm trying to decide between your amp and the minidsp amp. Can you provide any test results at frequencies below 40Hz? How about below 20Hz? Also, how does the SP1-2400 stack up? I will be driving a 4ohm load, so I'm not sure that the SP1-4000 would help me. My application will be low frequency home theater use.

Thanks
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post #40 of 51
1/31/13 at 2:31pm
Quote:
Originally Posted by chargedmr2 View Post

Brian,

I'm trying to decide between your amp and the minidsp amp. Can you provide any test results at frequencies below 40Hz? How about below 20Hz? Also, how does the SP1-2400 stack up? I will be driving a 4ohm load, so I'm not sure that the SP1-4000 would help me. My application will be low frequency home theater use.

Thanks

I'm also interested in this info.
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post #41 of 51
2/1/13 at 5:39pm
Quote:
Can you provide any test results at frequencies below 40Hz? How about below 20Hz? Also, how does the SP1-2400 stack up? I will be driving a 4ohm load, so I'm not sure that the SP1-4000 would help me. My application will be low frequency home theater use.

You don't need the SP1-4000 unless you have a 2 ohm load. The SP1-2400 has plenty of high current, low frequency capability. Frequency response is down 0.3dB at 20Hz

Measuring SP1-2400 with 4 ohm load. at 120VAC mains.
20Hz 2400W for 6 seconds smoothly reducing to 1330W after 15 seconds.
12Hz 2200W for 6 seconds smoothly reducing to 1330W after 15 seconds. 12 Hz is as low as the Audio Precision goes.....
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post #42 of 51
2/1/13 at 8:32pm
Quote:
Originally Posted by SpeakerPower View Post

You don't need the SP1-4000 unless you have a 2 ohm load. The SP1-2400 has plenty of high current, low frequency capability. Frequency response is down 0.3dB at 20Hz

Measuring SP1-2400 with 4 ohm load. at 120VAC mains.
20Hz 2400W for 6 seconds smoothly reducing to 1330W after 15 seconds.
12Hz 2200W for 6 seconds smoothly reducing to 1330W after 15 seconds. 12 Hz is as low as the Audio Precision goes.....

hows the noise level ?
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post #43 of 51
2/1/13 at 10:43pm
Quote:
Originally Posted by SpeakerPower View Post

You don't need the SP1-4000 unless you have a 2 ohm load. The SP1-2400 has plenty of high current, low frequency capability. Frequency response is down 0.3dB at 20Hz

Measuring SP1-2400 with 4 ohm load. at 120VAC mains.
20Hz 2400W for 6 seconds smoothly reducing to 1330W after 15 seconds.
12Hz 2200W for 6 seconds smoothly reducing to 1330W after 15 seconds. 12 Hz is as low as the Audio Precision goes.....

That sounds pretty impressive.

However, just looking out for your interests, you may very well win over quite an audience if it's frequency response down below 12hz could be confirmed. wink.gif
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post #44 of 51
2/2/13 at 10:51am
Quote:
Originally Posted by Scott Simonian View Post

That sounds pretty impressive.

Yeah, impressive indeed.

Quote:
Originally Posted by Scott Simonian View Post

However, just looking out for your interests, you may very well win over quite an audience if it's frequency response down below 12hz could be confirmed. wink.gif


If these are anything like the amps in Seaton's SubMersives, wink.gif then I've seen measurements indicating they're capability is solid down into the sub 12hz region.
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post #45 of 51
2/3/13 at 1:47pm
Quote:
Originally Posted by SpeakerPower View Post

You don't need the SP1-4000 unless you have a 2 ohm load. The SP1-2400 has plenty of high current, low frequency capability. Frequency response is down 0.3dB at 20Hz

Measuring SP1-2400 with 4 ohm load. at 120VAC mains.
20Hz 2400W for 6 seconds smoothly reducing to 1330W after 15 seconds.
12Hz 2200W for 6 seconds smoothly reducing to 1330W after 15 seconds. 12 Hz is as low as the Audio Precision goes.....

Thanks for the extra testing Brian and I appreciate the advice. I will be emailing shortly regarding the SP1-2400.

One last question. To what extent are these made in the USA? For me, that's a big selling point as compared to the Minidsp amp.
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post #46 of 51
2/4/13 at 8:21am
Quote:
Originally Posted by chargedmr2 View Post

Quote:
Originally Posted by SpeakerPower View Post

You don't need the SP1-4000 unless you have a 2 ohm load. The SP1-2400 has plenty of high current, low frequency capability. Frequency response is down 0.3dB at 20Hz

Measuring SP1-2400 with 4 ohm load. at 120VAC mains.
20Hz 2400W for 6 seconds smoothly reducing to 1330W after 15 seconds.
12Hz 2200W for 6 seconds smoothly reducing to 1330W after 15 seconds. 12 Hz is as low as the Audio Precision goes.....

Thanks for the extra testing Brian and I appreciate the advice. I will be emailing shortly regarding the SP1-2400.

One last question. To what extent are these made in the USA? For me, that's a big selling point as compared to the Minidsp amp.

The circuit boards are both made and stuffed here in the states and all final assembly is done at SpeakerPower. Many others have all their boards sourced and stuffed overseas where only final assembly is done here. A few circuit components and possibly some metalwork may be sourced overseas (Brian can correct here when he has time), but I think even most of the metalwork is now sourced here. It''s likely as American made as an electronic component can be. This applies to the 2400/4000W & 3200/6000W torpedo models. The smaller models currently use ICEpower modules as many others do. Those models have all final assembly done here with all front end and surrounding/control circuitry is done by/at SpeakerPower.
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post #47 of 51
2/4/13 at 3:22pm
Thanks Mark. I appreciate the insight. I'm not opposed to foreign made products, but it sure is nice to see some good stuff made in the USA once in a while.
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post #48 of 51
2/7/13 at 12:37pm
I have a new HT. Klipsch Ultra2. Good amps. 6000 cubic feet. All treated. The Klipsch subs ar totally inadequate. I am going to get a Danley DTS 10. Mount it hidden. I see many posts suggesting Behringer amps. Danley suggested an sp1-1000v. Triple the cost of Behringer.

Is it worth it?
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post #49 of 51
2/11/13 at 2:34pm
Quote:
One last question. To what extent are these made in the USA? For me, that's a big selling point as compared to the Minidsp amp.

The circuit boards are both made and stuffed here in the states and all final assembly is done at SpeakerPower. Many others have all their boards sourced and stuffed overseas where only final assembly is done here. A few circuit components and possibly some metalwork may be sourced overseas (Brian can correct here when he has time), but I think even most of the metalwork is now sourced here. It''s likely as American made as an electronic component can be. This applies to the 2400/4000W & 3200/6000W torpedo models. The smaller models currently use ICEpower modules as many others do. Those models have all final assembly done here with all front end and surrounding/control circuitry is done by/at SpeakerPower.

Mark is correct. The metal is made here too except for the heatsink.
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Danley suggested an sp1-1000v....Is it worth it?

Well I think so! Of course you have to decide to what extent you want to piece things together yourself. The advantage of buying a complete system from Seaton or Danley is to take advantage of their knowledge in integrating the electronics to the acoustics.

Brian Oppegaard
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post #50 of 51
5/5/13 at 12:32am
Bringing this back up since the other thread was made comparing to the clones.

I really want to see some sub 12hz data! Everything else is screaming bada$$ for the price.
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post #51 of 51
5/5/13 at 4:51am
Quote:
Originally Posted by Ricci View Post

Mark makes valid points. This dsp is a development tool for a finished product that can then be loaded to each unit once finished. Mistakes with the settings can mean you end up with a toasted amp, driver or both. Even with dsp having a snazzy easier to comprehend GUI one wrong setting can cause damage or just bad system performance. There is a learning curve to dialing this stuff in and most diyers would be starting at the bottom. SP is saving themselves a bunch of support hours this way. You can accomplish most of the functionality with a dcx or similar.

If people were serious about avoiding toasted amps and drivers they would take advantage of existing technology to monitor voice coil temperatures via their resistance and make the amp back off when the speakers start straining.
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