The Ah! Tjoeb 4000 is an outstanding value. Mine has completely transformed my system. Have it just about broken in now, and recently went and connected directly to my monobloc amps. This is the kind of sound I've been looking for since I started this hobby. The resolution and tonal purity improvement is truly amazing.I wish I'd bought this cdp before i bought my subwoofer becuase I honestly don't think I need the subwoofer anymore. This is the first real "Holy Cow" improvement of my audio experience. The one problem I had was a slight mismatch with input sensitivity of my monobloc amps. Min volume setting was too loud. The Ah! allows for that also though. Two very easy bridge connections are added at one of the boards, and the output voltage is adjusted. This allows me to listen at the top of the digital volume scale, so that no bits/resolution are lost. Snap-in 24/192 upsampling upgrade is available in a couple months too. Lots of fun with this unit if you like to tweak. Recommend it very highly. Kevin at Upscale Audio seems like a gent also.
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