Looking a bit more close at the interior of the new LINN 2250 amp I found that - in a way - it is a kind of "gainclone" too.
It uses amp chips (3 TDA7293 in parallel/non-bridging mode, with 0.1ohm output resistors) and it uses very small high quality smoothing caps (2 x 220yF per channel, with smaller ones paralleled).
The six output circuits seem to be identical (with smd parts, 22yF in the feedback loop). The amp uses a switch mode power supply like all other LINN amps since a few years.
I recently listened to it (with the all new Ruark SL10, which were hitherto unknown to me) and they sounded pretty good. But it was for a short time only and not enough time to listen more in detail.
Klaus
It uses amp chips (3 TDA7293 in parallel/non-bridging mode, with 0.1ohm output resistors) and it uses very small high quality smoothing caps (2 x 220yF per channel, with smaller ones paralleled).
The six output circuits seem to be identical (with smd parts, 22yF in the feedback loop). The amp uses a switch mode power supply like all other LINN amps since a few years.
I recently listened to it (with the all new Ruark SL10, which were hitherto unknown to me) and they sounded pretty good. But it was for a short time only and not enough time to listen more in detail.
Klaus
The Linn Klimax Twin is basically the same.
A SPMPS power supply supposed to be really good!?
3 TDA7293 per channel delivering quite a bit of power.
I wonder if this small case is enough for heatsinking 6 chips.
And the price... 10000€ 😱
I think you can do a circuit like that yourself and get the same performance !
The SMPS might be a problem but with a traditional power supply it should be easy.
Jens
A SPMPS power supply supposed to be really good!?
3 TDA7293 per channel delivering quite a bit of power.
I wonder if this small case is enough for heatsinking 6 chips.
And the price... 10000€ 😱
I think you can do a circuit like that yourself and get the same performance !
The SMPS might be a problem but with a traditional power supply it should be easy.
Jens
Is their switching PSU design reliable?
It would be a shame to replace a simple transformer and caps with a bunch of active circuits that break down...
MR
It would be a shame to replace a simple transformer and caps with a bunch of active circuits that break down...
MR
MRehorst said:
I haven't heard of any issues with it.
They 1st rolled out this kind of supply in the Klimax.
An externally hosted image should be here but it was not working when we last tested it.
dave
That explains a lot
That explains the insipid dull sound quality then - they obviously gave up trying to actually design anything decent 😉
It's frankly disgusting that a 10k amp should have such technology inside it
A.
That explains the insipid dull sound quality then - they obviously gave up trying to actually design anything decent 😉
It's frankly disgusting that a 10k amp should have such technology inside it
A.
Does this means that Linn is using non-inverting configuration for their parallel chipamp?
What will be the advantage/disadvantage of this configuration compared to Jeff Rowland which uses inverting configuration in its parallel chipamp?
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