I need a sub amp that can do 1500 watts @ 4ohm. - AVS Forum | Home Theater Discussions And Reviews
Baselworld is only a few weeks away. Getting the latest news is easy, Click Here for info on how to join the Watchuseek.com newsletter list. Follow our team for updates featuring event coverage, new product unveilings, watch industry news & more!


Forum Jump: 
 
Thread Tools
post #1 of 21 Old 11-20-2012, 07:44 PM - Thread Starter
Senior Member
 
TenTonBass's Avatar
 
Join Date: Nov 2012
Posts: 224
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked: 16
Any suggestions?

Thanks.
TenTonBass is offline  
Sponsored Links
Advertisement
 
post #2 of 21 Old 11-20-2012, 08:27 PM
AVS Special Member
 
lovinthehd's Avatar
 
Join Date: Dec 2007
Location: OROR
Posts: 9,947
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 1686 Post(s)
Liked: 2194
You don't have any from your own research? How about an EPX4000?
lovinthehd is online now  
post #3 of 21 Old 11-20-2012, 08:42 PM - Thread Starter
Senior Member
 
TenTonBass's Avatar
 
Join Date: Nov 2012
Posts: 224
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked: 16
Yeah the ones I've found were similar to the EPX4000 and while I consider that an option I was just wondering if there were any that were monoblock and more dedicated to home theater and not PA systems.
TenTonBass is offline  
post #4 of 21 Old 11-20-2012, 08:50 PM
AVS Special Member
 
lovinthehd's Avatar
 
Join Date: Dec 2007
Location: OROR
Posts: 9,947
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 1686 Post(s)
Liked: 2194
An amplifier is an amplifier...so what have you found? Just want a quiet one?
lovinthehd is online now  
post #5 of 21 Old 11-20-2012, 08:59 PM - Thread Starter
Senior Member
 
TenTonBass's Avatar
 
Join Date: Nov 2012
Posts: 224
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked: 16
TenTonBass is offline  
post #6 of 21 Old 11-22-2012, 04:54 AM
Newbie
 
knc2007's Avatar
 
Join Date: Mar 2008
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
knc2007 is offline  
post #7 of 21 Old 11-22-2012, 06:48 AM - Thread Starter
Senior Member
 
TenTonBass's Avatar
 
Join Date: Nov 2012
Posts: 224
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked: 16
How are those Crown Amps so light for the power they put out?
TenTonBass is offline  
post #8 of 21 Old 11-22-2012, 07:45 AM
Member
 
Thrummer's Avatar
 
Join Date: Nov 2010
Location: Eastern Canada
Posts: 145
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 10
I was not aware of this Cerwin Amp. How does it stack up? Comparable to a XPA-2 at all?

Thanks.
Thrummer is offline  
post #9 of 21 Old 11-22-2012, 08:09 AM - Thread Starter
Senior Member
 
TenTonBass's Avatar
 
Join Date: Nov 2012
Posts: 224
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked: 16
Well it puts out 1800 watts bridged @ 4 ohm, so I would say its in a little different category than an XPA-2
TenTonBass is offline  
post #10 of 21 Old 11-22-2012, 08:16 AM
 
arnyk's Avatar
 
Join Date: Oct 2002
Location: Grosse Pointe Woods, MI
Posts: 14,530
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 851 Post(s)
Liked: 1214
Quote:
Originally Posted by TenTonBass View Post

Any suggestions?

.

I like Crown XTI amps for subs, and they have a DSP with a lot of signal processing built in.

With just speaker we're talking bridged, so an XTi 2000 or XTi 2002 would seem to be a good fit.
arnyk is offline  
post #11 of 21 Old 11-22-2012, 08:19 AM
Newbie
 
knc2007's Avatar
 
Join Date: Mar 2008
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by TenTonBass View Post

How are those Crown Amps so light for the power they put out?

New Power Supplies are much lighter. No reason to lug around 70 pounds amps anymore.
knc2007 is offline  
post #12 of 21 Old 11-22-2012, 08:31 AM
 
arnyk's Avatar
 
Join Date: Oct 2002
Location: Grosse Pointe Woods, MI
Posts: 14,530
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 851 Post(s)
Liked: 1214
Quote:
Originally Posted by TenTonBass View Post

How are those Crown Amps so light for the power they put out?

Switchmode power supplies. I've had them on the test bench, and frankly the biggest problem is finding an outlet to plug them into that can provide enough continuous power for a bench test. I ended up pulling a 30 amp 230 volt circuit.

The other interesting thing is that several amps from the same series with an at least 2:1 difference in power rating are visibly identical, inside and out. But the test bench says nobody is lying.

This same technology when applied to home gear will have similar benefits - much easier to ship and install.
arnyk is offline  
post #13 of 21 Old 11-22-2012, 09:11 AM - Thread Starter
Senior Member
 
TenTonBass's Avatar
 
Join Date: Nov 2012
Posts: 224
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked: 16
Those Crown XTi amps look very nice!
TenTonBass is offline  
post #14 of 21 Old 11-22-2012, 09:15 AM - Thread Starter
Senior Member
 
TenTonBass's Avatar
 
Join Date: Nov 2012
Posts: 224
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked: 16
Quote:
Originally Posted by arnyk View Post

Switchmode power supplies. I've had them on the test bench, and frankly the biggest problem is finding an outlet to plug them into that can provide enough continuous power for a bench test. I ended up pulling a 30 amp 230 volt circuit.
The other interesting thing is that several amps from the same series with an at least 2:1 difference in power rating are visibly identical, inside and out. But the test bench says nobody is lying.
This same technology when applied to home gear will have similar benefits - much easier to ship and install.

So they are major strain on your home electrical system compared to other amps?
TenTonBass is offline  
post #15 of 21 Old 11-22-2012, 09:24 AM
 
arnyk's Avatar
 
Join Date: Oct 2002
Location: Grosse Pointe Woods, MI
Posts: 14,530
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 851 Post(s)
Liked: 1214
Quote:
Originally Posted by TenTonBass View Post

Quote:
Originally Posted by arnyk View Post

Switchmode power supplies. I've had them on the test bench, and frankly the biggest problem is finding an outlet to plug them into that can provide enough continuous power for a bench test. I ended up pulling a 30 amp 230 volt circuit.
The other interesting thing is that several amps from the same series with an at least 2:1 difference in power rating are visibly identical, inside and out. But the test bench says nobody is lying.
This same technology when applied to home gear will have similar benefits - much easier to ship and install.

So they are major strain on your home electrical system compared to other amps?

Not as long as I just use them with music. ;-)

A 2 killowatt power amp has the inherent power to trip out a 120 volt 15 amp circuit. If it can't do it under test bench conditions, then it is lying about what it is.
arnyk is offline  
post #16 of 21 Old 11-22-2012, 09:32 AM - Thread Starter
Senior Member
 
TenTonBass's Avatar
 
Join Date: Nov 2012
Posts: 224
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked: 16
Yeah this is for a DIY subwoofer and mostly to be used for HT and a little bit of music.
TenTonBass is offline  
post #17 of 21 Old 11-22-2012, 01:22 PM
Newbie
 
knc2007's Avatar
 
Join Date: Mar 2008
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by arnyk View Post


Not as long as I just use them with music. ;-)
A 2 killowatt power amp has the inherent power to trip out a 120 volt 15 amp circuit. If it can't do it under test bench conditions, then it is lying about what it is.

Test tones and full sweeps aren't great for speakers either. I had a Crown CE4000 that play fine with only a 15 amp circuit and club music. If you could find a Crown K1 or K2 they would be perfect for HT duties.
knc2007 is offline  
post #18 of 21 Old 11-22-2012, 05:51 PM
Member
 
Thrummer's Avatar
 
Join Date: Nov 2010
Location: Eastern Canada
Posts: 145
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 10
The Cerwin is rated at 400 watts at 8 ohms; 600 watts at 4 ohms; 2 channels driven.

The XPA 300 watts RMS @ 8 ohm (0.1% THD) 500 watts RMS @ 4 ohm (0.1% THD); 2 channels driver.

That's pretty close, but the Cerwin is way cheaper, and I can't even find a decent review of it. Makes you go hmmmm.
Thrummer is offline  
post #19 of 21 Old 11-23-2012, 05:42 PM
FOH
AVS Special Member
 
FOH's Avatar
 
Join Date: Apr 2010
Location: Midwest
Posts: 4,753
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 22 Post(s)
Liked: 221
Not certain about your exact power requirement, however I'd check out Yamaha's P series amps, their rock solid and quiet. If you need an audiophile looking piece then Emotiva will fit the bill.

FWIW, .... don't fret the trying to hit an exact wattage number, as halving/doubling is merely 3dB either way.

Also, many enthusiasts have used the Behringer EP4000, and modded the fan with success. I'm not into fan mods, but yeah the EP series is certainly well vetted and inexpensive.

------------------------------------
Flat, Deep, Clean, Linear, and Loud
------------------------------------
Active 16.8kw, 7.3 system
(3)Seaton Cat12C up front, (4)QSC K8 sides/rears
(2)Seaton SubM-HP, (4)18" IB
FOH is offline  
post #20 of 21 Old 11-23-2012, 05:49 PM
AVS Special Member
 
whoaru99's Avatar
 
Join Date: Dec 2004
Posts: 6,971
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Liked: 68
Quote:
Originally Posted by TenTonBass View Post

So they are major strain on your home electrical system compared to other amps?

Typically less so, watt per watt, because of higher efficiency.

Just because there is a knob doesn't mean you should turn it.
whoaru99 is offline  
post #21 of 21 Old 11-23-2012, 05:51 PM
AVS Special Member
 
whoaru99's Avatar
 
Join Date: Dec 2004
Posts: 6,971
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Liked: 68
Quote:
Originally Posted by knc2007 View Post

Test tones and full sweeps aren't great for speakers either. I had a Crown CE4000 that play fine with only a 15 amp circuit and club music. If you could find a Crown K1 or K2 they would be perfect for HT duties.

I think the CE4000 is actually a better sub amp but, yeah, need to do something with the fan noise if listening at lower levels.

Just because there is a knob doesn't mean you should turn it.
whoaru99 is offline  
Sponsored Links
Advertisement
 
Reply Receivers, Amps, and Processors

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off