TEAC AI-101DA Integrated Amplifier with USB DAC

This is something I've been wrestling with for awhile -- how to high-pass two-channel stereo signal for bookshelf speakers (and save poweramp from trying to deliver low frequencies that are bettered handled by powered sub) -- without relying on an AVR. Mini-DSP is always an option, but I have managed to collect a few no-longer-manufactured active analog bass management components: the Outlaw Audio ICBM-1 (the balanced ICBM-2 was never released), and the Paradigm X-30. A few subwoofers can do this, like the Emotiva Airmotiv. And Parasound has pre, power, and integrated amps with high-pass option. I'd love to see a company like Schiit come out with an active analog box solution for this.

Most subs have a low-pass filter ("crossover" for the sub itself), but precious few have a high-pass filter for the mains. Emotiva's Airmotiv subs do have this feature, where they send a variable-volume high-passed signal via RCA to powered main speakers or power amp.

I was on the drop in July 2016 for this unit. I'm in the UK. It was OK for a few years until I started suffering the volume problem that people are talking about. I lived with it for quite a while until it drove me nuts and I had to replace the unit. (I wasn't going to endure the postage and customs mayhem of returning this to the USA) I'm trying to talk with ServiceCentre to see if they know of the fix and whether it's something I can do myself. Maybe a pot issue... I hope. This is a shame as apart from this it's been a nice sounding unit, driven by optical and line in, in my case and used to drive a pair of older Castle bookshelf speakers. The headphone jack also started causing problems though towards the end. Personally, I would avoid this unit and seek an alternative.