I have a Musical Fidelity A5 driving my 3.6R's. Would Autoformer's help the power (and therefore the sound) delivered to the speakers? The wife wants wall to wall carpet (go figure) and won't be too happy if I upgrade to a $5K to $9K new integrated without the carpet.
Follow Ups:
- I expect they would. - Al Sekela 13:43:48 04/12/07
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- In Reply to: Will Autoformer's offer a cost effective Improvement for 3.6R's? posted by jllaudio on April 11, 2007 at 21:14:19:
The specs for your Musical Fidelity A5 show the power output does not double going from 8-ohm to 4-ohm load impedance. This is not a direct measure of the amp's ability to control Maggies, but it does suggest some compromise within the power supply which would make the amp less than ideal for Maggies.
ZERO autotransformers will reduce the output voltages as seen by the speakers and increase the load impedances as seen by the amp. If you can give up some peak volume capability, your amp will have less demand on its power supply at any given level, and exert better control over the speakers.
I had an InnerSound ESL-300 as a bass amp, and replace it with a pair of Gilmore Raptor switching monoblocks driving my MG-20s full-range. The InnerSound was already more potent than your Musical Fidelity, but the improved control from the Raptors put it to shame.
The primary improvement is in the sense of effortlessness in reproducing acoustic bass instruments. "Palpability" is the best word I can think of to describe the quality. There was no clipping apparent with the lesser amp, but less of a sense of real instruments in real space.
- Re: I expect they would. - jllaudio 19:28:05 04/12/07
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- In Reply to: I expect they would. posted by Al Sekela on April 12, 2007 at 13:43:48:
Normally I play the amp at a volume setting of halfway up (or halfway down). I was hoping that the autotransformer would save me several thousand I would have to spend (I don't buy used - paranoid) to upgrade the integrated.
- They should work fine for you. - Al Sekela 15:21:58 04/13/07
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- In Reply to: Re: I expect they would. posted by jllaudio on April 12, 2007 at 19:28:05:
Your amp should have enough head-room at your normal listening level to accommodate the voltage drops.
Contact Paul Speltz. He may have a customer with a similar amp.
- They should work fine for you. - Al Sekela 15:21:58 04/13/07
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- Re: I expect they would. - jllaudio 19:28:05 04/12/07
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