100 watts from an effects pedal?!

[Axtman]

How is it possible that this Carvin pedal can produce 100 watts with a 24 volt 5000 mA supply?

https://carvinaudio.com/products/mac...edal-amplifier

[eschertron]

Assuming a perfectly-efficient amplifier, 24V*5A = 120W so ideally possible.
50W into 8R (from the spec page) would require +/-20vdc rails in a linear amp. I'm thinking class D may get a single 24v rail to squeeze out that power. So how close to perfect is the amp? 100W/120W = 84% if we're talking continuous power output. I think class D amps approach that.

"Music Power" or "Peak Power" can be claimed, then all you need is a couple decent-size capacitors to hold the rails up for a few milliseconds.
So I guess the question as I would frame it, is whether "Carvin pedal can produce" or "Carvin can claim this pedal can produce"

[xtian]

Why not? You can buy 400 watt Class D amp modules from parts-express.com or eBay that run on 24-36v/4A supplies.

[Axtman]

Okay you have convinced me. What the heck am I doing schlepping around heavy amps when I can put this on my pedal board?

[Enzo]

Why should I eat steak and potatoes when I could just eat protein paste?

[nosaj]

Why should I eat steak and potatoes when I could just eat protein paste?

No better words have been said.

But if you like protein paste then good for you.
nosaj

[eschertron]

Why should I eat steak and potatoes when I could just eat protein paste?

Why would I eat chicken wings when I could eat escargot? Probably because I've been culturally indoctrinated in one and not the other. It's not a value statement, but a statement of preference.

[nosaj]

Why would I eat chicken wings when I could eat escargot? Probably because I've been culturally indoctrinated in one and not the other. It's not a value statement, but a statement of preference.

Yea well I prefer my indoctrination but thighs are better
nosaj

[g1]

People with seafood allergies may be allergic to cricket flour.

[Enzo]

Or grasshoppers.

[nickb]

It was two 50W outputs. Each will be bridged to give you about a 20Vpp swing, That's a full 50W average ( commonly misnamed RMS) into 4 ohms. Frankly, at USD189 with no preamp it seems overpriced.

[eschertron]

Or grasshoppers.

On the USS Enterprise, grasshoppers will be made from protein paste. So OK For those with seafood allergies.

[Mick Bailey]

I noticed that the spec doesn't say RMS - it just refers to 100W or 50W+50W so could be music power.

I have a really cheap 100W 24v class D amp board from China built around a TI single chip. With a low-voltage tube preamp the sound quality is there, plus it's insanely loud and more than enough volume for live work. The input impedance is selected by a single resistor but unfortunately with my particular board it's inaccessible without removing other components, so the input impedance is pretty much set at 10K. Not a problem though with a preamp that expects to see a lower impedance. I tried driving it off a few pedals and it's pretty loud enough, but loses all the top-end as you'd expect.

I posted elsewhere what it cost and I can't recall exactly, but you could buy two for the price of a decent set of strings when I got it about 4 years ago.

[Zouto]

I noticed that the spec doesn't say RMS - it just refers to 100W or 50W+50W so could be music power.

I have a really cheap 100W 24v class D amp board from China built around a TI single chip. With a low-voltage tube preamp the sound quality is there, plus it's insanely loud and more than enough volume for live work. The input impedance is selected by a single resistor but unfortunately with my particular board it's inaccessible without removing other components, so the input impedance is pretty much set at 10K. Not a problem though with a preamp that expects to see a lower impedance. I tried driving it off a few pedals and it's pretty loud enough, but loses all the top-end as you'd expect.

I posted elsewhere what it cost and I can't recall exactly, but you could buy two for the price of a decent set of strings when I got it about 4 years ago.

You can order a set here, also good as replacement for blown sessionette 75 power modules
https://de.aliexpress.com/item/40009...%2315392%23237

[glebert]

This one looks like you could build the Carvin pedal-amp for $15 + enclosure and power supply AND add Bluetooth!
https://www.ebay.com/itm/50wx2-Bluet...UAAOSwINlfiRkg