Do you have one of these to sell?
Key Features
- Selling your equipment to Gear4music is straightforward
- Just click "Trade-in your gear" above, answer some quick questions about your item and we'll tell you how much you'll get.
- We'll arrange to collect the item from you, ensuring its journey to us is fully insured.
- Once we receive your gear, we'll let you know.
- When the item has been checked and verified, within a few days you'll get paid!
Selling Your Doepfer A-138b Mixer, Logarithmic (8HP)
Trade in your Doepfer A-138b Mixer, Logarithmic (8HP) with Gear4music. If you're adjusting your modular setup, this simple and effective mixer module could be a great trade. The A-138b is perfect for combining audio or CV signals, but if you're ready to upgrade to more advanced mixing options with panning or voltage control, trading it in can help you enhance your patching possibilities and workflow.
Product Ref: 315534
Full Description
View Full DescriptionLogarithmic Potentiometers For Audio Mixing
The Doepfer A-138b is equipped with potentiometers featuring a logarithmic response. This makes them especially suited to mixing audio signals. You can patch your audio signals into inputs 1 to 4, and adjust the relative amount of each signal with the input's respective controls. The entire mixed signal is output through the Out socket.
Input 1 Offset Function
On the Doepfer A-138b's PCB you can find a pin header labelled JP4. This can be used to enable voltage offset for Input 1. By placing a jumper onto JP4 in the right position (towards the edge of the PCB), a positive offset voltage is generated by the In 1 control, providing that nothing is inserted into Input 1. If a jumper is put to JP4 in the left position (direction to the front panel), then a negative offset voltage is generated.
Controls
- In 1: Attenuator for controlling the level for Input 1
- In 2: Attenuator for controlling the level for Input 2
- In 3: Attenuator for controlling the level for Input 3
- In 4: Attenuator for controlling the level for Input 4
- Out: Master attenuator for determining the output level of the mixer. This allows the module to act as the end of the audio chain and interface directly with devices such as amplifiers or mixing desks
Inputs/Outputs
- Input 1: Audio/CV input, channel 1
- Input 2: Audio/CV input, channel 2
- Input 3: Audio/CV input, channel 3
- Input 4: Audio/CV input, channel 4
- Output: Output for the complete mixed signal
Specifications
- Width: 8HP / 40.3mm
- Depth: 35mm (Measured from the rear side of the front panel)
- Current:
- +12V: +10mA
- -12V: -10mA
| Reviews of our service
View all