Synthesizers.com Modular Analog Synthesizers home page
Fine modular analog synthesizers featuring classic styling and world-class customer service

Technical Information

If you're looking for some technical nitty-gritty of Synthesizers.com systems, you've come to the right place.

Menu for this Page

Design Philosophy
Electrical Specifications
Panel Specifications
Panel Graphics
Power Supplies
Signal Connectors
External DC Power Connector
External AC Power Connector
Internal DC Module Power Connector
Internal Pot/Switch/LED Connectors



to the top

Design Philosophy


to the top

Electrical Specifications

We use voltage levels that are common to other analog synthesizers for easy interfacing.

Pitch Control Voltages: 1 volt per octave
Waveform Voltages: 10V peak-peak
Gates: 0-5V positive ON, threshold 1.5V (Learn about gates)
Signal Input Impedance: 100K
Signal Output Impedance: 1K
Envelope Voltages: 0-5V
DC Power: +15V, -15V, +5V
AC Power: 110VAC, 220VAC

to the top

Panels

Synthesizers.com Q series modules adhere to the MU (Moog Unit) format modeled after the Moog Modular.

Each synthesizer module consists of a front panel and a circuit board mounted on the back parallel with the front. Modules may be removed from the synthesizer cabinet after removing the mounting screws and the power connector. Some modules are attached to another module behind the panel as is the case of Aid modules.

Panels are made of .062" aluminium, sanded, formed on the sides for strength, masked, painted, textured, then silkscreen printed. All panels are 8.75" in height and come in various 'widths'.

Panel Widths
A single width panel is 2.125" - all others are multiples of this single width. Common sizes are single, double, quad, and octal, but any multiple of a single will fit in our cabinetry.

Common Panel Widths
Single: 2.125"
Double: 4.25"
Quad: 8.5"
Octal: 17"

CAD drawing of a panel.

Mounting Flanges
Mounting flanges at the top and bottom of each module panel are .4" tall which mates nicely with a 3/8" (.375) mounting surface.

Mounting Hardware
We use #6 x 1/2" black wood screws to mount modules to wooden walnut studio cabinets and portable wood cabinets. We use #6-32 x 1/2" black machine screws to mount modules to rack frames and Box cabinets. See our Parts page for these screws.

a blank panel   a blank panel   a blank panel   a blank panel  


to the top

Panel Graphics

Panel graphics are silkscreen printed using white ink.

Font for Module Part Number: Arial 10pt all-caps
Font for Module Title: Arial Bold 12pt All-caps
Font for Control and Jack Titles: Arial 10pt All-caps


to the top QPS1 power supply

Power Supplies

We use linear power supplies to reduce noise. They're heavier and more expensive than switching power supplies. These supplies deliver +15V, -15V, and +5V for use by the modules in your system. A power supply has 2 cables: 1 for the AC power input which connects to a Q102 or Q137 power module, and 1 for the DC power output which connects to the cabinet's wiring harness.

See the Power products page for all the details.


to the top 1/4 jack and plug

Signals - 1/4" Phone Jacks

Our modules use standard 1/4" jacks and plugs for all waveform and control voltage routing. These are much easier to handle and more durable than 3.5mm connectors, and offer a shielded ground unlike banana connectors. 1/4" jacks and plugs are also used on most other audio equipment allowing easy interfacing.

Use the Q120 Connector Interface Module to interface system signals to RCA connectors, 3.5mm connectors, and banana connectors. Also see the Q121 Banana Jack Interface Module, and the Q122 Mini-Jack Interface Module.


to the top 6 pin Circular DIN Connectors

External DC Power - 6 pin DIN

We use 6 pin circular DIN connectors to supply DC power to the external world using QIC cables. QIC cables carry power to other cabinets and to controllers. This DC power connector can be found on the Q103 DC Power Interface Module, the Q137 Power Module, Box cabinets, and controllers.

6 pin Circular DIN Connectors
to the top iec power connector

AC Power - IEC

We use standard IEC connectors for AC power. This allows use of your synthesizer in almost any country when using the correct power cord.

Some of our power systems are universal input and some require changing a switch to select the input voltage.

See the Power products page for all the details.


to the top

Internal DC Module Power - 6 pin MTA

We use MTA .1 connectors for DC power supply connections to modules. Modules have the male PCB mount version, and the cabinet's QDH cable harness has the female version.

6 pin module power Connectors

Pin #2 is removed from male connectors, and pin #2 is plugged on female connector to act as a KEY so the connector can not be plugged in backwards or shifted.

Female 24AWG cable mount: AMP #6404416
Male PCB mount: AMP #6404566
The connectors are available at Mouser or DigiKey.

6 pin module power Connectors
to the top

Connectors, Buttons, LEDS - 2 pin MTA

We use 2 pin .1 MTA connectors for jacks, push buttons, LEDs and other devices requiring only 2 pins. This makes repairs and maintenance very easy without needing to solder.

Female cable mount: AMP #6404412
Male PCB mount: AMP #6404562

Jack Pinout:
1 = Signal (tip)
2 = Ground (ring)

to the top

Internal Pot/Switch - 3 pin MTA

We use 3 pin .1 MTA connectors for potentiometers, SPDT switches and other devices requiring 3 pins. DPDT switches have 2 of these connectors. Replacement is easy and doesn't require soldering.

Female cable mount: AMP #6404413
Male PCB mount: AMP #6404563

Potentiometer Pinout:
1 = CCW Side
2 = Wiper
3 = CW Side

Copyright Synthesizers.com

Synthesizers.com Facebook group
Synthesizers.com Google Plus group
Email synthesizers.com web page
Tweet about synthesizers.com
print synthesizers.com
Synthesizers.com Logo
To Top
Empty