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110 (or 120) vs 220

Hi,

IF an amp can operate at both 110 and 220, and a dedicated circuit is being installed for that amp, is there an advantage to a 220 v circuit? Or is the answer "it depends on the amp"? Or is the answer simply "no"?
128x128jimspov
russe41
95 posts
 
Also Audio equipment doesn't draw that much current to warrant 220v
Post removed 
jea48
4,483 posts
 

russe41,

Quote from 2014 NEC Code

210.6 Branch-circuit voltage Limitations. The nominal voltage of branch circuits shall not exceed the values permitted by 210.6 (A) through (E).

(A) Occupancies Limitation. In dwelling units, and guest rooms or suites of hotels, motels, and similar occupancies, the voltage shall not exceed 120 volts, nominal, between conductors that supply the terminals of the following:

(2) Cord-and-plug-connected loads 1440 volt-ampere, nominal, or less or less than 1/4hp.


jea48
4,483 posts
 

jimspov said:

I naively thought if I doubled the voltage I could ~double my available power (~quadruple at 4 ohms?) and that would vastly increase the pool of speakers I could choose from (e.g., Totem, Magnapan).


Sorry, it doesn't work that way.

The best thing you can do for the amp is give it a 120V  20 amp dedicated branch circuit.

rpnz's avatar
rpnz
28 posts
 
I hope this question is relevant to the topic but I could not find much on what would like to do.
i am moving to Europe and have an extensive hifi investment + Kimber & Nordost AC cables. I was wondering if an electrician could put in a dedicated 120v-60hz line. I do not know enough about 50hz/60hz.

Furman make a pro transformer that convert 240x-120v  (Furman P-3600 AR G ) but it’s $4k and huge. Maybe there are other products some members have had experience with? 
I would prefer a dedicated line? But is this possible.
Thank you in advance for any advice. 
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