I also owned the Apt pre for over 20 yrs. I would agree with Madisonears that is was a very good piece of "utilitarian" audio equipment. Sound spectrum was very neutral from top to bottom and it had the dreaded "tone controls" that allowed correction of speaker/room deficiencies. Imaging and resolution were never it's strong points. For a tube preamp, try the Anthem Pre1L--new ones on sale by www.upscaleaudio.com for $579.
