Superscope PSD340 Music Practice CD Recording System (fully loaded!)

This amazing all-purpose unit was my dad's favorite way to practice guitar. He treated it well and was the sole owner. The only thing missing from the original set (per the manual) are the RCA patch cables, which are pretty easy to find (probably here on Pricetronic!). I will admit I know nothing about the specs as far as answering questions but I have confirmed it is in good working condition overall.
From what I can see online, this little gem is a rare vintage find - even piecemeal the parts fetch a nice price! I've priced it accordingly and will also entertain reasonable offers.
I copied this from Sweetwater's reference guide to the PSD340 in case it is helpful for answering questions - if there is anything else you are wondering about, please do ask and I will do my best. :-)
A Great CD Player/Recorder for Rehearsal and Accompaniment!
The Superscope PSD340 dual drive CD recorder and MP3 CD player is designed especially for musicians and music educators who use music CDs for accompaniment. The PSD340 features both a CD recording drive and an innovative MP3 CD player drive capable of real-time changes of key, tempo, and voice reduction on any music CD or MP3 audio file. This rugged and reliable music rehearsal and recording tool lets you make great sounding CD recordings, create custom practice CDs, and duplicate CDs on the spot. Recording directly to CD is fast and easy with the Superscope PSD340. Superscope PSD340 Dual Drive CD Recorder at a Glance:

Real-time tempo and key change controls

Easy to create, easy to program

Built-in features for easy and effective recording and playback

Real-time tempo and key change controls
Significant improvements in Superscope's real-time tempo and key change controls for CDs and now MP3 files mean that a song can be slowed down even further with better quality - up to 75% - while retaining the musical pitch of the original. Or, the key of any song can shifted at the touch of a button up or down (as much as an octave) in half steps or finer increments, while the tempo remains unchanged. A CD or CD-MP3 can also be fine tuned to match an instrument. All of these changed may be recorded onto a new CD as a take-home customized accompaniment. Easy to create and program
The CD player drive operates independently from the CD recording drive, so it's easy to program song play lists, record a few measures from the middle of a song, select start and end points for music practice loops, create your own music compilation CDs, convert MP3 files on a CD-ROM to song tracks on a standard audio CD, or continuously record an event such as a concert or church service while playing various CDs. A versatile, powerful tool for recording and rehearsing
The PSD340 offers several features for easy recording and effective rehearsals. One-button recording functionality on the unit and remote gives you convenience and control, while additions such as Record-Review, reverb and delay effects, enhanced control over key and tempo, improved A-B looping, and a built-in metronome and tuner make the PSD340 a versatile and powerful tool. Superscope PSD340 Dual Drive CD Recorder Features:

Record directly to CD-R or CD-RW discs as easily as using a tape recorder, but with professional results

One-button recording and instant review makes it easy to record and immediately listen to the last recorded track

Mix live recording with CD accompaniment in real-time

Reverb and delay help match room ambience with CDs

Two fully independent drives for simultaneous playback and recording and spot duplication

Copy just a few beats or measures of a song from a CD

15dB mic input attenuator and automatic record level switch

Built-in 48V phantom power

Mix/split/stereo recording

Four-position headphone/speaker selector allows for monitoring of the audio in 4 different locations within the unit

Independent aux input and line output controls

Three independent duplication modes

Plays CD, CD-R, CD-RW, CD-MP3 and CD+G discs (text/graphics can be sent to a CD+G decoder box)

Change the tempo of any music CD or MP3 file on disc in real time -75% to +50%

Change key as much as an octave up or down in half steps

Fine tune CD accompaniment to match your instrument

Select A-B practice loops or record a part of a song

Remotely control record, volume, balance and all music manipulations

Chromatic tuner and 440Hz tone

Metronome with accent beat

Create customized music accompaniment CDs

Reduce lead vocals from CDs to create singing accompaniments

Program a playlist

The Superscope PSD340 is an amazing recording and rehearsal tool!