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[Michael Oladipo]

Good evening everyone, please is it possible to daisy chain more than one amplifiers to have more powerful combined power(watts). For example, I have powerful set of subwoofers, and so is it possible to combine the amplifiers watts in order to power the subs? if yes, pks how...thnks.

[Dave Dermont]

Good evening everyone, please is it possible to daisy chain more than one amplifiers to have more powerful combined power(watts). For example, I have powerful set of subwoofers, and so is it possible to combine the amplifiers watts in order to power the subs? if yes, pks how...thnks.

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Thank you.

[Ivan Beaver]

Good evening everyone, please is it possible to daisy chain more than one amplifiers to have more powerful combined power(watts). For example, I have powerful set of subwoofers, and so is it possible to combine the amplifiers watts in order to power the subs? if yes, pks how...thnks.

 
NO.
The best you might be able to do is to bridge amplifiers, even different brand mono amps.  But you must be very careful doing the wiring and setting the gains.

You cannot run the output of one amp into the input of another amp.  You will only have the output of the final amp.

[Keith Broughton]

Good evening everyone, please is it possible to daisy chain more than one amplifiers to have more powerful combined power(watts). For example, I have powerful set of subwoofers, and so is it possible to combine the amplifiers watts in order to power the subs? if yes, pks how...thnks.

As Ivan said, no you cannot daisy chain amps.
If you tell us what speakers and what amps are you using, we might be able to suggest something.

[Mike Sokol]

As Ivan said, no you cannot daisy chain amps.
If you tell us what speakers and what amps are you using, we might be able to suggest something.

And that question should be moved over to another forum here.

[Chris Grimshaw]

 
NO.
The best you might be able to do is to bridge amplifiers, even different brand mono amps.  But you must be very careful doing the wiring and setting the gains.

You cannot run the output of one amp into the input of another amp.  You will only have the output of the final amp.

Good point, I hadn't thought of bridging two mono amplifiers.
So if I took a pair of MA5002VZs, set them for parallel operation (where you can tie the positive outputs together, for 5kW into a 1ohm load), and fed one of them inverted, I'd have a 6U amp that'll stick 10KW into a 2ohm load.

Neat. All I'd need then is a forklift and a really big generator.

Chris

[Ivan Beaver]

Good point, I hadn't thought of bridging two mono amplifiers.
So if I took a pair of MA5002VZs, set them for parallel operation (where you can tie the positive outputs together, for 5kW into a 1ohm load), and fed one of them inverted, I'd have a 6U amp that'll stick 10KW into a 2ohm load.

Neat. All I'd need then is a forklift and a really big generator.

Chris

One of the "untold" issues with the "parallel" mode, is that once you go up in freq, it starts to fall apart a bit.

I think this was around 5KHz or so.

So it is better used for lower freq signals.

[Keith Broughton]

Good point, I hadn't thought of bridging two mono amplifiers.
So if I took a pair of MA5002VZs, set them for parallel operation (where you can tie the positive outputs together, for 5kW into a 1ohm load), and fed one of them inverted, I'd have a 6U amp that'll stick 10KW into a 2ohm load.

Neat. All I'd need then is a forklift and a really big generator.

Chris

Doing some welding?

[Chris Grimshaw]

One of the "untold" issues with the "parallel" mode, is that once you go up in freq, it starts to fall apart a bit.

I think this was around 5KHz or so.

So it is better used for lower freq signals.

That's interesting, thanks for the info.
I can't imagine needing that sort of power for HF, but I might do some high-frequency sweeps of the Macrotech I have here to see what the deal is.


Keith, I just found it interesting to compare - 4x MA5000s, paralleled and then bridged into a 2-channel amplifier, would keep up with a K20. That's progress.


Chris

[Ivan Beaver]

That's interesting, thanks for the info.
I can't imagine needing that sort of power for HF, but I might do some high-frequency sweeps of the Macrotech I have here to see what the deal is.



Chris

Be sure to do it under load.

I have not actually done/measured it, but was this was the case for a VERY reliable source, who has ties everywhere.

The problem might not show up on a simple sweep.

[Chris Grimshaw]

Be sure to do it under load.

I have not actually done/measured it, but was this was the case for a VERY reliable source, who has ties everywhere.

The problem might not show up on a simple sweep.

Sure, no problem. I've got a load bank that's good for a couple of hundred watts. The software I use for measurements (REW) reports phase and distortion as well as frequency response. I think that setting the amplifier for parallel operation and then measuring each channel independently will show up issues - if there's anything askew, comparing the phase responses ought to show that up.

Chris

[Nathan Riddle]

This is basically off topic. But every-time I see this topic pop up in my feed I think of cascaded transformers.

https://srirajkumar.files.wordpress.com/2011/06/cascaded-transformers.pdf

[Tim McCulloch]

This is basically off topic. But every-time I see this topic pop up in my feed I think of cascaded transformers.

https://srirajkumar.files.wordpress.com/2011/06/cascaded-transformers.pdf

His explanation of resonant transformers is worth the read.  Thanks for the link.

[Nathan Riddle]

His explanation of resonant transformers is worth the read.  Thanks for the link.

Glad you could enjoy it

Comes from my days of building Tesla Coils and being a part of that community.

I remember seeing some images of cascaded transformers. I tried to find them earlier, but couldn't. They're cool!



http://electrical-engineering-portal.com/generation-high-voltages-lab-acdc-switching-lightning-impulse

[Mark Wilkinson]

Sure, no problem. I've got a load bank that's good for a couple of hundred watts. The software I use for measurements (REW) reports phase and distortion as well as frequency response. I think that setting the amplifier for parallel operation and then measuring each channel independently will show up issues - if there's anything askew, comparing the phase responses ought to show that up.

Chris

Hi Chris, QSC has a white paper that talks about some paralleling issues...https://www.qsc.com/resource-files/whitepapers/q_wp_sys_amp_flexibleamplifiersummingtech.pdf

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