Hello all,
I am just curious ... I have finished an ESP 88-based preamp and am building a single board, 90 w/ch P3A amp. I haven't had the pleasure of auditioning many high-end amps, so I don't have a feel for where the P3a stands in the great scheme of things.
Assuming a P3A is well-built with quality (but not outrageous "boutique") parts, what sort of commercial offerings would it compete with, and what would be the price range?
Thanks all!
I am just curious ... I have finished an ESP 88-based preamp and am building a single board, 90 w/ch P3A amp. I haven't had the pleasure of auditioning many high-end amps, so I don't have a feel for where the P3a stands in the great scheme of things.
Assuming a P3A is well-built with quality (but not outrageous "boutique") parts, what sort of commercial offerings would it compete with, and what would be the price range?
Thanks all!
I have compared the P3A with various stock commercial units, and it can rival amps costing around $400-600.
Since I have low impedance, relatively inefficient speakers (4 ohm, 86dB with 1W @ 1m), I was able to add an extra set of output devices, and a large heatsink / active cooling arrangement. With this load my P3A runs much cooler than my Dad's Arcam Alpha 6 amp - which has a similar power rating and a large power supply, but a much lighter duty output stage / heatsinking arrangement. When you build it yourself you can afford to tailor the amp to your needs!
I say go for it, you won't be disappointed
Tim.
Since I have low impedance, relatively inefficient speakers (4 ohm, 86dB with 1W @ 1m), I was able to add an extra set of output devices, and a large heatsink / active cooling arrangement. With this load my P3A runs much cooler than my Dad's Arcam Alpha 6 amp - which has a similar power rating and a large power supply, but a much lighter duty output stage / heatsinking arrangement. When you build it yourself you can afford to tailor the amp to your needs!
I say go for it, you won't be disappointed
Tim.
Parallel output transistors
Have a look at Rod's artile on heatsinking (http://sound.westhost.com/heatsinks.htm). Look for Figure 4 about halfway down the page on how to do this. Hope this helps.
Martin
Have a look at Rod's artile on heatsinking (http://sound.westhost.com/heatsinks.htm). Look for Figure 4 about halfway down the page on how to do this. Hope this helps.
Martin
but i definitely could live with it if i needed more power. As i said before, easily one of the best AB amps i've heard.- Status
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