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Chip Amps Amplifiers based on integrated circuits

Modulus-86  build thread
Modulus-86  build thread
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Old 7th August 2019, 01:12 AM   #4741
cloud1972 is offline cloud1972  United Kingdom
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i dont think enough emphasis has been made about this amps performance with less than Stella power supply's.
i see plenty of folks using hi quality toroidal supply's and the more quality offerings from connex and meanwell for smps but not a lot has been said about the much cheaper alternatives after all we are all diy guys and and like to save buck or two.
so far i have tested my mod 86 with nearly every power supply i have iv plumed the depths as far as quality with some very eye opening results.
1. Epson printer smps 24v 2A
2 KODAK PRINTER SMPS 24V 1.8A
3 ALBA TV SMPS POWER SUPPLY 24V 3A
4 SMSL CHEAP CHINESE CLASS D AMP SMPS 32V
5 MEANWELL LRS 100 36V SMPS RUN AT 33V 13
6 MEANWELL RPS 75 36V RUN AT 33V 2.1A 17
despite the obvious power and current limitations of some of these supply's (at least for what i needed) the mod86 performance with any of these supply was fantastic even the crap printer and tv smps sounded great.
being the golden eared audio snob i like to think i am i was sure i would be able to wax lyrical about the superiority of the RPS to the LRS and so down the line but if any thing the power supply rejection of this amp is so good im damned if i can hear any difference.

Last edited by cloud1972; 7th August 2019 at 01:32 AM.
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Old 7th August 2019, 01:58 AM   #4742
tomchr is offline tomchr  Canada
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That's hilarious! Thanks for sharing. Yeah... As long as you can get 20-30 V you're usually good.

Tom
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Modulus-86, 186, 286, 286 Kit, & 686: 40-240W (8Ω) at <-120dB THD.
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Old 12th August 2019, 01:39 AM   #4743
cloud1972 is offline cloud1972  United Kingdom
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hi folks does anyone know for a decent se to differential converter board like toms that driver board? i have 2 spare LME49710 if that helps

Last edited by cloud1972; 12th August 2019 at 01:44 AM.
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Old 12th August 2019, 04:22 AM   #4744
tomchr is offline tomchr  Canada
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I'm thinking to have a board like that available this fall.

Tom
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Modulus-86, 186, 286, 286 Kit, & 686: 40-240W (8Ω) at <-120dB THD.
Neurochrome : : Audio - www.neurochrome.com - Engineering : : Done : : Right
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