Actually, $227 (that $23 roundup is almost as much as the eBay amp LOL) - but note that for my amp, just the BOM (not including the PCB) with genuine parts like Coilcraft flat copper wire inductors, Nichicon caps, Wima caps, Elna Silmic caps, all Vishay metal thin film resistors, genuine TI IC's, TI DC-DC converter and LDO's, etc... sourced from Mouser is ~$125. The PCB itself is 2mm thick, 2oz Cu, ENIG finish and made with state of the art layout practices by a professional (JPS64), and professionally assembled in the USA. I am not sure what kind of parts are being used on a $40 TPA3255 amp?
But hey, this is DIY and we are all welcome to have fun making our own stuff or buying our own stuff.
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Don’t get defensive please. Like I said some people has no understanding what involved in quality build. Aside from talent, knowledge and labor.
Cheapskates don’t care. And get offended when suggested to get out of the hobby.Kudos to perfectly executed implementation.
Go to Parts express and get a ICEPower 200AC (same as 200ASC but without power supply). It runs in that single voltage rail (around 47vdc), but also need +/-12vdc.
But at $70 each? Not bad for ICEpower...I like them.
ICEpower 200AC Class D Audio Amplifier Module 1 x 200W
But at $70 each? Not bad for ICEpower...I like them.
ICEpower 200AC Class D Audio Amplifier Module 1 x 200W
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That is often down to interaction with the loudspeaker’s impedance. What kind of speakers?
dave
Thanks. I will check them. I have a couple of 200AC y bought on eBay to run with a pair of 500ASP I have.
I checked the 200AC spechsheet but it does not say the amount of current needed in the +/-12V. Do you think it's safe to say it should be less than the max amount the 500ASP can supply in the +/-12V line (0.8A)?
The Gremlin is based in which chip?
STA516BE
STA516BE - 500W FFX Digital Amplifier Power Stage - STMicroelectronics
It's a class T.
On the Gremlin (2x400w and 2x500w from Sure), there are one chips per channel, so in PBTL mode.
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That impedance is not bad. The SE tube amp will have a slight interaction (how much depending on the output impedance), but it should not be huge, so perhaps not the cause of your bass issues with it. The rise at teh top could exacerbate the raised area up top (if that FR measured w low output impedance amp0.
dave
dave
The class d amps plays the bass a little more tight and contolled as the tubeamps. Above the 100Hz they sound almost the same. Distorsion comes earlier on the low power tube amps( 8w and 22w).
I experience that all linear and good amps almost sound the same. Therefore i can recomment the wondom ab-32313 with linear power supply as best value for money.
I experience that all linear and good amps almost sound the same. Therefore i can recomment the wondom ab-32313 with linear power supply as best value for money.
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