Doepfer A-135-3 - Voltage Controlled Stereo Mixer [Three Wave Music]

Brand New
$212.87CAD
+ $37.25CAD Shipping
5 in stock
Watch this listing to get price drop alerts

14-day Return Policy

Enjoy peace of mind with your new gear

Local Pickup Available

Save on shipping and get your gear sooner

Shipped From
Three Wave Music
Hawthorne, NJ, United States
6,266
Sales
9000+
Joined Reverb
2014
Preferred Seller
Quick Responder
Quick Shipper
Reverb Protection

Buy with Confidence – Reverb Protection has you covered

  • Live support from an expert team of musicians
  • Simple and straightforward returns
  • A safe community for finding the gear you want

About This Listing

A-135-3 is a  is a voltage controlled stereo mixer with four inputs. Behind a front panel with 8 HP only eight linear VCAs (voltage controlled amplifiers) and the mixer based on the VCAs are available.

 

Controls, Inputs and Functions of each input:

  • Level (manual control of the VCA amplification), small rubberized knob (L1...L4)

  • Control voltage input with associated attenuator (CV 1...4), for the full VCA control range about 0...+5V control voltage are required (attenuator fully clockwise), for higher control voltages the attenuator is used, the attenuators are without knobs, just plastic shafts with white marker

  • Signal Input left/right (InL 1...4 / InR 1...4) 

  • The signal inputs are not equipped with an attenuator. But the VCAs can process all signals up to 15Vpp / -7.5...+7.5V without clipping. In case of higher levels an external attenuator is required (e.g. A-183-1).

The sum of the left and right signals appear at the sockets Out L and Out R. The maximal amplification is  about 0.5 to avoid clipping at the mixer outputs (otherwise the outputs may distort with 15Vpp signals at each signal input and full amplifications). If another maximal amplification (e.g. 1) is required two resistors have to be replaced. 
All inputs and outputs are DC coupled. Consequently the module can be used to process both audio and control voltages.

Additional technical specification for each VCA (based on the specifications of the VCA circuits CEM3360/AS3360 used in the module):

  • Crosstalk between two channels: better than - 80dB

  • Signal attenuation at 0V CV: better than -80dB

  • Total harmonic distortion: typ. 1%

  • Control voltage feedthrough: max. 15mV

Width: 8 TE / 8 HP / 40.3 mm
Depth: 45 mm (measured from the rear side of the front panel)
Current: +40mA (+12V) / -40mA (-12V)

Reviews of this Shop

6,266

Product Specs

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.learn more
Brand
Model
Categories
Made In
  • Germany
;

Reverb Gives

Your purchases help youth music programs get the gear they need to make music.

Carbon-Offset Shipping

Your purchases also help protect forests, including trees traditionally used to make instruments.

iOS app store button
Android play store button
The Apple logo and the App Store are trademarks of Apple Inc. Google Play and the Google Play logo are trademarks of Google LLC.
Scan with your phone to get the Reverb app:
App Install QR Code
Oops, looks like you forgot something. Please check the fields highlighted in red.