Category The Compound Studio

Yamaha DX7 mkI FM Synthesizer

A classic. This is the first version of the DX-7. I bought this in 2007 from a fellow who bought it new back in the day. He took fantastic care of it. When I bought it he still had the original box, manuals, and other stuff. This synth is museum quality.

Of course, no matter how pretty and clean, it still sounds like a DX-7.


This is where the specs live…
Polyphony – 16 Voices
Oscillators – 16 bit Digital 6 operator FM.
#Instruments – (1) Monotimbral
LFO – Sine/Square/Tri/SAW up/SAW Down/Random
VCA – 6 Envelope generators 8 parameters each
Keyboard – 61 keys (w/ velocity and aftertouch)
Memory – 32 Patches


Acquired: 2007

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Technics AX7 Synthesizer

This is a wacky synth. I haven’t decided if I love it or hate it. Powered up it is covered in lights.. so it has that going for it.


Specs! Specs! Get yer specs here….

  • 8-polyphonic, 4-part multitimbral PCM synthesizer workstation with a PCM drum machine.
  • 3 OSC architecture without a filter. A sound is made of Attack Source (1 OSC) and Body Source (2 OSC).
  • The Attack Source is basically a short transient sample like Roland D-50 / D-110 .
  • The Body Source is a combination of 2 samples called Basic and Harmonics. They seem to be basically single-cycle waveforms, and some Harmonics waveforms includes ‘Spectrum’ type longer loops.
  • The Basic sets the overall character of the Body Source, and the Harmonics determines the second waveform added to it...
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Roland JX-8P Synthesizer

The one I found was a little road worn. It had one dead key, another couple of keys that were sluggish, and the volume slider needs some help (it only goes to 1/4 volume or to 11). Even with the dead key it can still be controlled fully via MIDI – which is how I normally control these synths anyway. And, when I record, the volume is cranked to send the most signal through the lines. So, a couple pretty easy fixes which aren’t even a priority for me.

Parts of this machine are pretty worn so I might do some custom work to it. I normally avoid doing major cosmetic changes but anything I do to this thing will be an improvement at this point. Perhaps a total paint job – Bright Red! I’m not sure yet. I need to crack it and see how the guts look first.

She’s a tired old girl but she sounds good ...

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Roland JX-3P Synthesizer

Ran across this nice little fellow at a good price. I am the second owner.


Insert super-duper specs..
Specifications
Polyphony – 6 voices
Oscillators – 2 DCO’s per voice
Memory – 32 preset, 32 user
Filter – Resonant Low pass
Effects – Chorus
Arpeg/Seq – Simple Sequencer
Keyboard – 61 keys
Control – MIDI (no velocity except with a special ROM upgrade)
Date Produced – 1983



Acquired: 2009

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Roland JP8000 Synthesizer

I love my JP8000! Knobs, sliders, blinky lights. If only it had a shiny black metal case.



Acquired: 2007

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Roland Juno 106 Synthesizer

The classic Juno 106.

My 106 was in great shape when I bought it slightly used at a fair price around 1998. Sadly, it took a spill off the back of a keyboard rack, slid down the wall and by the time it reached the floor it lost several sliders. Thanks to the Interwebs I found a fellow in Hong Kong who had several aftermarket parts for the Juno 106. I ordered my replacement sliders (as well as a couple for future repairs). I also bought a fancy clear plastic pitch bender backlighted by a couple blue LED’s.

The guts of the Juno 106

Another shot of the Juno 106 guts

Funky blue LED pitch bend installed on the Juno 106

How many times have you said to yourself "Glarble!! It is dark and I can not find the pitch bend on my Juno 106!" - I shall never utter those words again.

UPDATE 2010.10.06:...

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Roland D-50 Synthesizer

This synth was used on the song I Am Energy (bass and bouncy synth sounds)

I bought my Roland D-50 new in 1987. I was the first out of that music store with one. I may have also been first in town to get one because none of the other music stores had them in yet.

This has been my all time favourite synth to date. Once you get your brain wrapped around programming “Linear Arithmetic” Synthesis, the sky is the limit. This is also the main keyboard I use for synth sound MIDI programming. The action is really smooth, the bender and modulation has nice control and the aftertouch is very expressive.

Over the years this machine has held up really well. It’s been hammered on in the studio, been on many stages at a number of shows, packed around in the back of cars...

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Roland D-10 Synthesizer

The Roland D-10 is pretty much the little dorky brother of the Roland D-50. Roland tried to cram a lessor D-50 into the D-10 but also include some added, useless features.

I found mine for a steal at a 2nd hand shop who didn’t realize replacing the connected power cord would be an easy affair.

It had been sitting on my tech bench for years to use for the MIDI connectors. I decided to sell it in the Great Equipment Purge of 2013.

Overall, if you can find one for under $100, I say buy it.


Yummy specs…
Polyphony – 32 voices
Oscillators – Digital LA (Linear Arithmetic) & ROM Samples
Effects – 8 Effects
Multitimbral – 9 parts
Drums – 1 kit, 63 sounds
Memory – 128 internal & 128 external patches, 64 performances
Keyboard – 61 note with velocity sensitivity


Acquired: 2000?

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Korg X5D Synthesizer

I bought this via the Interwebs from a rocker dude who thought it was called a symp. For being such a small keyboard it really makes some cool sounds.


Tech Notes:

Reset to factory defaults: Global mode page 05A.

The special “Communication Terminal” on the back of the X5D and connecting cable is really an 8-pin MiniDIN to serial. If for some reason you want to build one of these cables, download and install the special software from Korg, and connect your X5D to your computer via serial connector (why?) here is how.

The pin outs (from the outside) are as follows.
D-SUB 9-pin
5 – 4 – 3 – 2 – 1
9 – 8 – 7 – 6

Mini DIN 8-pin
6 – 7 – 8
3 – 4 – 5
1 – 2

Connect
DIN 3 to Dsub 2
DIN 4 to Dsub 5
DIN 5 to Dsub 3
Jump pins 7 and 8 on Dsub


Specs in the city:

  • Sound Generation Method: AI2 (Advanced In...
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    Korg Wavestation EX Synthesizer

    A Korg classic. Along the same lines as a Roland D-50. It can be cheezy or you can program your own sounds and it can become quite expressive. I’m a big fan of this synth outside of the crappy little display.


    Spec-tabulus information below…

    • Sound sources: Advanced Vector Synthesis
    • Voices: 32 Voices, 32 Oscillators
    • Keyboard: 61 Keys, halfweighted with aftertouch and velocity
    • Effects: 2 Mastereffects, 47 Programs available
    • Presets: 150 Performances internal + 50 on card, 105 patches + 35 on card
    • Controllers: Joystick, pitch wheel, modulation wheel, 2 programmable foot pedals/triggers
    • Outputs: 1/L/MONO, 2/R, 3, 4, phones
    • MIDI: IN, OUT, THRU
    • Display: 64 x 240 pixels
    • Weight: 12,5 KG
    • Measurements: 1000 mm (W) x 350 mm (D) x 110 mm (H)


    Acquired: 1987

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