Is my amp "High Current"?


Hi, I own a McCormack DNA 0.5 amp that has been upgraded to rev. A at SmC Audio. I read about speakers benefiting from using a high current amp, and was wondering if mine was considered to be one.

Thank you.
koestner
I think y'all are confusing power with current.

1. Watts are a product of volts times current
2. So 200 watts could equal (A) 1V x 200A or (B) 200V x 1A
3. When impedance (ohms) drops, and the speaker wants lots of watts, you could give it A or B, but an electrostat would prefer A because it's a current hungry device, not a voltage hungry device like a cone driver which prefers B.
4. Tube amps (generally speaking) have more amps in each watt while SS amps have more volts in each watt,
5. Ergo, a 35 watt tube amp may be capable of delivering the same amount of CURRENT as a 200 watt SS amp.

So if it's current you're after, a good tube amp will do it -- if it's voltage you need, you'd be happier with the SS amp. The thing is, that unlike stats, cone drivers generally don't drop significantly in impedance as the frequency rises, however they do call for more power (in the form of volts not amps), when controlling (damping) large woofers.
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Wow, That was an excellent response. I finally saw the light bulb above my head go on. I only hope I can generate the watts to keep it lit :-)

Thank you. You really did explain that well.
"3. When impedance (ohms) drops, and the speaker wants lots of watts, you could give it A or B, but an electrostat would prefer A because it's a current hungry device, not a voltage hungry device like a cone driver which prefers B.
4. Tube amps (generally speaking) have more amps in each watt while SS amps have more volts in each watt,
5. Ergo, a 35 watt tube amp may be capable of delivering the same amount of CURRENT as a 200 watt SS amp.

So if it's current you're after, a good tube amp will do it -- if it's voltage you need, you'd be happier with the SS amp. The thing is, that unlike stats, cone drivers generally don't drop significantly in impedance as the frequency rises, however they do call for more power (in the form of volts not amps), when controlling (damping) large woofers."

Oh my. That's exactly backwards, Nsgarch.
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"High Current is most commonly used to describe an amp with the ability to deliver increasing amounts of current into low impedence loads. The ideal amp would deliver twice the current as the load halves. For example, 100 watts into 8 ohms and 200 watts into 4."

Aren't Mcintosh some of the highest current amps on the market, and don't they claim their amps deliver the same power at 2, 4, and 8 ohms?