Please note: only specific and slightly rare "CFC" memory cards can be used with the Repeater. The power supply is also rare, and at times only an expensive "industrial grade" power adapter ($100+) may still be available. Because of this, getting a whole package together can be expensive. The modification, CFC card, and power supply might total $300+.
Digital effects processor, live time knobs, 2. 5 sec ping pong echos. With manual, distortion, flange, tremelo, delay, chorus, Amazing effects!! Very live time, Playable!!! (V)
Digital effects processor, live time knobs, 2. 5 sec ping pong echos. With manual, distortion, flange, tremelo, delay, chorus, Amazing effects!! Very live time, Playable!!! (V)
#8+ Condition, Excellent Audio, No rack Scratches, New Front Jack, Tube EQ Mod, Battery LED Mod, Battery Supply Mod, Audio Circuit Low Noise, 5534 op amp mod, upgrade k246 FET, super low noise mod. Very rugged front panel jack, jack only works as guitar input, #8 condition, excellent audio, no rack scratches (possibly sold unit see our other listings)
Auto-Tune intonation processor. Rackmount unit, single rack space. Black finish, Digital Display. Comes with 7 pin AC power supply. Midi in, footswitch, balanced line input, balanced & unbalanced line output (1/4" Phone & XLR). Digital display is corrupted, unit functions but screen is glitched & unreadable. May need display replaced. Cosmetically good, controls and connectors work but display does not function correctly. Could be a working unit if display is fixed or replaced. #7 condition
Three band dynamic range expander. Rack ears in perfect condition. Unit in excellent cosmetic condition, completely cleaned, serviced and calibrated. Condition: 9
Mic and Line inputs. One octave keyboard style button array on face. Excellent tracking! Encoder code for editing factory and user programs. Great sounding harmonies and easy to use interface! Excellent #9 condition.
Very powerful effects processor! Comes with custom power supply unit, 1/4" stereo ins/outs, MIDI in/out, digital jog dial controlled menus. This unit is tested and fully functional, but the display is dim due to problem backlight. As of 2024, battery replaced, display worked briefly without backlight then completely stopped. Unit powers up, display is currently not working at all, sound passes through it and effects work as well as effect selection. Original box and packaging Working unit with non-working display. #8 condition
1 band dynamic range expander, slider controls, a single space rack mount. Expansion, transition, pre, post, bypass. Has silver rack ears, excellent for phono playback enhancement, reduces noise for tape, excellent calibration. Original box and packing, two minor scratches on top cover. 9+ condition.
Autocorrelator Noise Reduction System. Dynamic range recovery system. Peak Unlimiter/Down Expander, Auto Correlator, Low Freq Calibration Controls. AP Rev 6 Mod for improved performance, dynamic expansion and recovery. Condition: 9. Contact us for more information.
Guitar Processor. Unit has Rev 6/ Rev 5 Modifications. Engineering Sample. Better Overdrive/ Tube EQ etc. Back panel phone jack is for line level. Unit has high/ low output switch on top cover. Fair amount of rack rash and scratches. Fully functional unit with only some minor cosmetic flaws. #8- Condition On my website is a clear explanation about ADA MP1 and mods. Without a doubt the 3 tube mod is a waste of time and money and actually will make the ADA MP1 run incorrectly. This unit operates on the principal that the FETs control the tube voltage and carefully inject distortions into the cathode of the tube and also, the programming on the front panel changes plate voltages to tubes! A remarkably clever design! Obviously, the people who offer this 3 tube mod and double transformer mod do not understand this circuit or its operations technology and they are misleading concerned players.
The modification that I do actually lessens the tube gain, lowers the noise floor, and adds equalization that is better for todays vintage sound. Players want more versatility in programming usual guitar overdrive effects. The original design is way too screechy metal in its overdriven character for too many programs. My alteration allows a wider range of programming to go from the metal to warm, driven to crank, to a bluesy overdrive whereby the overdrive and equalization controls are calibrated more in the middle range of its programming numbers; i. E. Number 5 on the overdrive is now a nicely driven sound rather than a badly overdriven sound but the ADA MP1 will be still be able to be heavily overdriven on an 8 or 9 setting. These modifications were acceptable to the ADA engineer at the time. In fact, he commented that the electro acoustic sound with my parts change was similar to his thinking too, in that it allows for more flexibility for front panel adjustment for even more guitar tube preamping effects.
I have done this mod for 25 years!! No complaints yet. Please call me directly for more info.
Noise reduction module, accessory for 80-8 tape recorder, bag, manual, 16 RCA cables, no warranty card. Known to be in good condition. This unit is priced on request depending on service required. $250 (Tested appears to work, minimal repair, clean up time is spent) - $400+ range (Full restoration everything repaired, all relays cleaned (there are 16 of them!!) tested, calibrated, etc. ) These are 30 years old, it is almost a requirement to really perfect. Once serviced correctly these are very reliable and great performing machines. We also do a modification in the circuit which reduces the circuit noise another 4 to 6 db and also reduces the crosstalk, simulsync, playback at high frequency by almost 10 db. A significant improvement. $160 for the modification.
High performance, solid state design, single channel, one rack space unit. Microphone preamp and equalizer can be used independently. All connections are balanced XLR. Excellent #9+ mint condition, includes manual, original box & packing.
*** We left the listing up because we repair these, and did have parts/units to sell. These were very interesting products for the era. The SP1 were very strident and difficult to mod or fix for modern use and now require very rare parts for any repairs. A better product that works in a similar way is the later version Aphex Aural Exciter type A, B, etc. Which has a much nicer sound, is more adjustable to be more euphonic 2nd harmonics enhancement device. Without a doubt, better for vocals and acoustic instruments. We also modify the Aphex to be more nuanced in their operation. However, we will attempt to fix your SP1 if need be, but tough to get parts. You are welcome to call.
With manual, 6 channel signal router, 6 in-2 out line mixer, 2 in-6 out line splitter, 6 in-6 out buffer amp, all 1/4" I/Os balanced, 1 rack space, each channel has Level and Balance/Pan, This is the older better built (more rugged) unit.
Very clever phase correction and enhancement device for equalization and fattening. Unit creates a wide and thick stereo enhanced image. RCA in/out. Excellent #9 condition, professionally cleaned, serviced, tested.
