Ensoniq SQ-80 Cross-Wave Synthesizer: I have an SQ-80 for sale.  The SQ-80 is a powerful performance oriented synth with a limited on-board sequencer.  I bought it because it has a very large timbral repertoire;  it seems to do meaty analog synth sounds as well as sounds that are considerably more "digital". Below are a list of features extracted from the owner's manual:   o Eight-voice polyphonic poly-timbral synthesizer, capable of     playing eight different sounds at once, with dynamic stereo     panning for each voice   o Voice section employing Cross-Wave synthesis;  combine different     attack and sustain wave segments to create complex, dynamic sounds   o 75 sampled waves (includes a drumset) serve as the sound source   o Dynamic voice allocation:  each sequencer track/MIDI channel has     access to all eight voices   o A full-featured MIDI controller keyboard capable of sending eight     MIDI program and volume changes at once.  Keyboard is velocity     sensitive, and transmits/receives velocity and polyphonic aftertouch.   o Powerful matrix modulation scheme allows a very wide range of      modulation sources and routings.   o A 3.5" floppy disk drive which writes/reads ordinary DS/DD disks     allows fast and reliable storage of up to 600 sequences and up to     1728 sound patches on a single floppy disk.  Also has a RAM-cart slot     for patches that is compatible with ESQ-1 RAM-carts.   o Does sysex dumps to its floppy disk for any sysex capable MIDI device   o 80 character fluorescent display and user-friendly "page-driven"     programming scheme provides a fairly humane user interface   o Stereo line-outs, and stereo headphone jack for private listening   o Sound programs and sequences are upwardly compatible with the ESQ-1     so that sounds and sequences created for the ESQ-1 can be played on     the SQ-80.  This SQ-80 has been the main MIDI controller in my studio for quite a while now.  It has performed ably in that role, and has also been a heavily used sound source at the same time.  The SQ-80 seems to have been designed with this role in mind, and it works very well with my software sequencer (WinCake) in its multitimbral mode.  >From a synthesis point of view, this machine is a hybrid.  It uses looped short samples (there are 75 of them) as sources, then these waves are processed with a sophisticated DCF-DCA arrangement.  The SQ-80 is capable of great things because of its 4-pole analog lowpass filter. Simply put, it makes fabulous analog synth sounds.  But unlike most good analog synths, it has a very thorough MIDI implementation so that it works very well with a MIDI sequencer.  What I really like most about this thing is that it is capable of making a very wide range of sounds. This SQ-80 is about 5 years old (mfg. date 1/21/88).  It does have an 8-track sequencer, but like most on-board sequencers, it is a pain to use so I have avoided it.  REASON FOR SALE: I am selling my SQ-80 because I recently joined forces with another individual here in Boston, and we have more keyboards than space to put them.  I recommend it for someone who is getting started in sequencing and needs a powerful but economical master keyboard.  PRICING AND TERMS: I paid $1300.00 for this synth a few years ago.  I am willing to accept $650.00 (average r.m.m.s asking price is $733.00).  I will include a bunch of  patches on SQ-80 floppy disks for the buyer of this synth, as well as the  original Ensoniq SQ-80 owner's manual.  Price:    Asking $650.00 (everything) Shipping: split shipping (UPS Surface COD) anywhere in the lower 48 states ------------------------------------------------------------------------------- Craig Vanderborgh                                         Verbex Voice Systems e-mail:  craigv@rad.verbex.com                            119 Russell Street phone: (508) 486-8886                                     Littleton, MA 01460