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Author Topic: (smaller)Four Channel Amplifiers  (Read 7856 times)

Weogo Reed

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(smaller)Four Channel Amplifiers
« on: August 15, 2017, 02:43:36 PM »

Hi Folks,

For years I've had a QSC CX404 running four monitor mixes.
My wedges are pretty efficient, volume level needs fairly modest, and the CX404 has always been plenty of power.
This is a remarkably reliable amp. 
It has Phoenix inputs and screw-terminal outputs; great for install, not so great for portable use. 
Even with short cables going to a patch panel I sometimes have connection issues.
 
I'm looking for a reliable replacement with XLR in, Speakon out.
I don't need high power, or digital processing.

Is anybody using the Carvin DCM2004L?
Do they hold up long-term?

Other suggestions?

Thanks and good health,  Weogo
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Robert Piascik

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Re: (smaller)Four Channel Amplifiers
« Reply #1 on: August 15, 2017, 02:51:29 PM »

Powersoft m50q hits most of your needs
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TJ (Tom) Cornish

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Re: (smaller)Four Channel Amplifiers
« Reply #2 on: August 15, 2017, 02:58:22 PM »

Hi Folks,

For years I've had a QSC CX404 running four monitor mixes.
My wedges are pretty efficient, volume level needs fairly modest, and the CX404 has always been plenty of power.
This is a remarkably reliable amp. 
It has Phoenix inputs and screw-terminal outputs; great for install, not so great for portable use. 
Even with short cables going to a patch panel I sometimes have connection issues.
 
I'm looking for a reliable replacement with XLR in, Speakon out.
I don't need high power, or digital processing.

Is anybody using the Carvin DCM2004L?
Do they hold up long-term?

Other suggestions?

Thanks and good health,  Weogo
Take a look at the QSC PLD4.2.
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Tim Weaver

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Re: (smaller)Four Channel Amplifiers
« Reply #3 on: August 15, 2017, 03:07:37 PM »

PLD, or honestly the Behringer NU4-6000.

Like you, I have been using a CX404 for years and just can't bring myself to get rid of it. It has been so handy for so many different things. I have a single rackspace panel with 4 xlrf and 4 NL4 outs on it.
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John L Nobile

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Re: (smaller)Four Channel Amplifiers
« Reply #4 on: August 15, 2017, 03:15:13 PM »

or honestly the Behringer NU4-6000.


Sure can't beat them for the price. I needed 8 channels for monitors and had money left over to buy a 3rd amp as a spare. Done a couple of dozen shows on them with no problems or complaints.
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Mike Milkovitz

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Re: (smaller)Four Channel Amplifiers
« Reply #5 on: August 15, 2017, 03:26:45 PM »

I've had the Carvin DCM2004L for about 3-4 years with no complaints.  It's very light and loud enough for my needs (bars, clubs and outdoor gigs).
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David Winners

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Re: (smaller)Four Channel Amplifiers
« Reply #6 on: August 15, 2017, 03:41:31 PM »

I've had an NU4-6000 for a year and a half running monitors, and now 2 channels running a pair of QRx112/75. I'm really happy with it. Stays cool. Sounds good. No problems.
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John Chiara

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Re: (smaller)Four Channel Amplifiers
« Reply #7 on: August 15, 2017, 05:47:59 PM »

I've had the Carvin DCM2004L for about 3-4 years with no complaints.  It's very light and loud enough for my needs (bars, clubs and outdoor gigs).

Same here....but it went down once and it's acting up now.
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Chris Grimshaw

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Re: (smaller)Four Channel Amplifiers
« Reply #8 on: August 15, 2017, 06:07:54 PM »

Another vote for the NU4-6000.
For smaller gigs, it runs the compression drivers and a pair of monitors (NU6000 runs the midbass drivers). For bigger gigs, I drop an NU6000 behind each main speaker and the NU4-6000 runs all the monitors. It'll drive down to 2ohm if you need it to, which is handy.

Real-world power output is 300w/ch@8ohm, 600w/ch@4ohm, 1000w/ch@2ohm, all channels driven.

Chris
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Caleb Dueck

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Re: (smaller)Four Channel Amplifiers
« Reply #9 on: August 15, 2017, 06:33:39 PM »

The new Powersoft Quattro amps - very competitively priced, with DSP & Dante if desired

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Don T. Williams

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Re: (smaller)Four Channel Amplifiers
« Reply #10 on: August 15, 2017, 06:58:26 PM »

Another vote for the NU4-6000.
Real-world power output is 300w/ch@8ohm, 600w/ch@4ohm, 1000w/ch@2ohm, all channels driven.

Chris
I'll agree with Chris that the real world output is less than advertised, but they don't behave too badly when pushed.  I have a company that I supply racks and stacks to that has NU4-6000's for their DB Tech passive monitors.  They have been problem free.
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Jeffrey Knorr - JRKLabs.com

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Re: (smaller)Four Channel Amplifiers
« Reply #11 on: August 16, 2017, 09:41:01 AM »

Hi Weogo,

The Ashly NX series is a great option.  It's available with/without DSP/Dante.  We've been using the two channel flavor for a while now at my church--no complaints and Made in the USA.  We're currently in the process of adding the NXP8004 to power a delay ring.

http://ashly.com/products/nx-multi-mode-amplifiers-2u

Jeff
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Don T. Williams

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Re: (smaller)Four Channel Amplifiers
« Reply #12 on: August 16, 2017, 05:13:02 PM »

I agree that the Ashly, QSC, and Powersoft are all great products.  I've used all of those with excellent results, but at $350.00 street, it's hard to beat the NU4-6000 from a cost  vs. performance basis.  How pro do you want to go!
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Mal Brown

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Re: (smaller)Four Channel Amplifiers
« Reply #13 on: August 16, 2017, 09:35:26 PM »

I've had the Carvin DCM2004L for about 3-4 years with no complaints.  It's very light and loud enough for my needs (bars, clubs and outdoor gigs).

Ditto.  Lives in my monitor rack and for me has been lightweight and reliable.
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Weogo Reed

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Re: (smaller)Four Channel Amplifiers
« Reply #14 on: August 17, 2017, 01:26:34 PM »

Hi Folks,

Thanks for all the comments!

A Powersoft M28Q would be sweet; same for Ashly.
I'll be looking out for them if they ever show up used.

My monitors sound very good with just a HPF and I prefer the simplicity of monitor amps with no DSP, so the PLDs are out.

Don you ask a very good question,"How pro do you want to go?"
My answer is I want the quality and reliability of a CX404 combined with XLR and Speakon connections.

For my needs, the Carvin is likely the way I'll go.
The CX404 will get a new home in a local venue and probably work fine for another 20 years!

Thanks and good health,  Weogo
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Bill Staley

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Re: (smaller)Four Channel Amplifiers
« Reply #15 on: August 18, 2017, 07:51:26 AM »

Hi Folks,

Thanks for all the comments!

A Powersoft M28Q would be sweet; same for Ashly.
I'll be looking out for them if they ever show up used.

My monitors sound very good with just a HPF and I prefer the simplicity of monitor amps with no DSP, so the PLDs are out.

Don you ask a very good question,"How pro do you want to go?"
My answer is I want the quality and reliability of a CX404 combined with XLR and Speakon connections.

For my needs, the Carvin is likely the way I'll go.
The CX404 will get a new home in a local venue and probably work fine for another 20 years!

Thanks and good health,  Weogo

I have the Powersoft M28Q powering four monitor wedges and could not be happier.
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Scott Olewiler

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Re: (smaller)Four Channel Amplifiers
« Reply #16 on: August 18, 2017, 04:31:42 PM »

I've had the Carvin DCM2004L for about 3-4 years with no complaints.  It's very light and loud enough for my needs (bars, clubs and outdoor gigs).

Same here. Use mine for band practice room wedges now but I have had mine since 2013. 
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Dan Richardson

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Re: (smaller)Four Channel Amplifiers
« Reply #17 on: September 01, 2017, 10:24:53 AM »

I picked up the 4ch iNuke. Astonishing for the price, moreso if it really worked.

3 of the 4 outputs whistle with no input. Each is different, 10k, 4k, 8 kHz. Any of you seen that?

Claims to match my PLX3002 channel for channel. Clips about 4 dB earlier when volume matched. Still impressive in half the rack space and a quarter the weight.

Am I nuts, or did they totally screw up the NL4 pairing? Got rudimentary crossovers built in, and two mono switches, should be useful as hell for firing up a stereo 2-way system. Unfortunately, they paired the outputs so that both highs are on one NL4, and both lows are on the other. WTAF? Why would you ever want that? The manual says to build a patch panel. All they had to do was pair it the other way.
« Last Edit: September 01, 2017, 11:44:17 AM by Dan Richardson »
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John Chiara

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Re: (smaller)Four Channel Amplifiers
« Reply #18 on: September 01, 2017, 12:22:30 PM »

Hi Folks,

Thanks for all the comments!

A Powersoft M28Q would be sweet; same for Ashly.
I'll be looking out for them if they ever show up used.

My monitors sound very good with just a HPF and I prefer the simplicity of monitor amps with no DSP, so the PLDs are out.

Don you ask a very good question,"How pro do you want to go?"
My answer is I want the quality and reliability of a CX404 combined with XLR and Speakon connections.

For my needs, the Carvin is likely the way I'll go.
The CX404 will get a new home in a local venue and probably work fine for another 20 years!

Thanks and good health,  Weogo

I have the Carvin and it's acting up again...channels going down. I may get an INuke. Cheaper and I have had zero problems with other INukes.
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Don T. Williams

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Re: (smaller)Four Channel Amplifiers
« Reply #19 on: September 01, 2017, 01:40:05 PM »

I picked up the 4ch iNuke. Astonishing for the price, moreso if it really worked.

3 of the 4 outputs whistle with no input. Each is different, 10k, 4k, 8 kHz. Any of you seen that?

Claims to match my PLX3002 channel for channel. Clips about 4 dB earlier when volume matched. Still impressive in half the rack space and a quarter the weight.

Am I nuts, or did they totally screw up the NL4 pairing? Got rudimentary crossovers built in, and two mono switches, should be useful as hell for firing up a stereo 2-way system. Unfortunately, they paired the outputs so that both highs are on one NL4, and both lows are on the other. WTAF? Why would you ever want that? The manual says to build a patch panel. All they had to do was pair it the other way.

I have sold several dozen of the Nu4-6000 over the last two years with only a single channel failure (that I think was the customer's fault) that was covered under warranty.  My opinion is that the internal crossover is fairly useless, and using it with the mono switches and NL4 wiring has confused my customers who have tried that.  I haven't used it that way myself, but the combination may possibly be causing the oscillations.  You may just have a bad amp .
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duane massey

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Re: (smaller)Four Channel Amplifiers
« Reply #20 on: September 01, 2017, 08:13:37 PM »

Anyone care to post the price of the Powersoft amps? Finding any pricing online is pretty much a futile effort.
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John Fruits

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Re: (smaller)Four Channel Amplifiers
« Reply #21 on: September 01, 2017, 09:01:18 PM »

I did a quick check at fullcompass and they listed prices for a dozen models, most likely MAP prices.
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Helge A Bentsen

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Re: (smaller)Four Channel Amplifiers
« Reply #22 on: September 02, 2017, 02:49:24 AM »

You can't go wrong with the Powersoft M-series, they have been super reliable so far.
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Re: (smaller)Four Channel Amplifiers
« Reply #22 on: September 02, 2017, 02:49:24 AM »


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