TDA7293 chipamp for sale

[krishu]

Hi,

I will sell my TDA7293 chipamps, not really gainclones but small in size and sweet sounding.

talking about mono blocks, each has a 450VA torodial (2x25V), 40.000uF panasonic TS-HA caps plus Audyn MKPs and ultrafast soft-recovery diodes;

the amp board itself has panasonic FC caps, all signal resistors are vishay dale cmf 55 143 (non-inductive), some silmics are involved as well; the input cap can be soldered out if no DC is delivered from pre amp; it is 4.7uF KP-SN, paralleled with a gorgeous 1500pF ERO roeerstein KP1832.

It has soft-start and DC-filter (against transformer hum)

There is a mute switch, which changes also some LEDs.

As everytime i ask only for material cost which is about 250 Euros for both channels (125 each); a proper aluminium or acrylic housing would be available for extra charge.

The amps beat 500 .. 1000 Euro commercial amps by far, it plays very clear and clean (as I like it), bass is clean and powerful but not boomy enough for party application

It delivers somewhat below 100 watts into 4 and less into 8 ohms.

Pics to come.

delivery within EU is free, outside depends.

International bank transfer is prefered (no fees in EU), paypal is available.

Cheers
Christian.

[krishu]

light blue paper behind 8mm acrylic, is away now but can be brought back in a minute... housing itself is mdf, which is good regarding resonance but bad regarding shielding (no problem at all) and fire insurance.



innards. guess what is what.



two amp boards in detail



standby indicator; in reality the whole front is blue or red (depending on mode, of course)



operation indicator



backside; powercord is shielded 3x1.5mm lapp oelflex now (not shown) plug can be replaced. Oh, and the transformer is for 230V mains, which means not suitable for US i guess.



schematic, copyright www.ub-audio.com; see for details there.

If interested, please email me.

Cheers
Christian.

[krishu]

Hi folks,

This one sounds gorgeous, nobody interested?

Cheers
Christian.

[richie00boy]

I'm not in the market for anything like this, but the execution is nice. Good luck with the sale.

PS I think you helped out with the recent Reichelt group buy? I had some MOSFETs, thanks for your help.

[krishu]

Hi richie00boy,

yes, I did; you're welcome

Yesterday I enjoyed these amps for hours and doubt I will sell them - no I have to. I will sell, if there is anybody interested.

Consider these amps are just like the bigger Linn power amps (same chips) with sophisticated power supply, best components (much better than e.g. linn uses) and therefore crystal clear sound, amazing voices etc.

Cheers
Christian.