BASTL INSTRUMENTS / BUDDY

This is a high-quality stereo mixer module with hybrid connections and expandability.

Buddy is a 4-channel stereo mixer module designed for hybrid environments.

Channels A/B are optimized for Eurorack sources (mono or stereo) with a +6dB (x2) boost range. Channels C/D are line-level preamps capable of boosting signals up to +20dB (x10).

Channels C/D also support TRS mini stereo jacks on the left side, allowing direct input of desktop synthesizers (such as KASTLE).

All channels utilize high-quality, low-noise NE5532 operational amplifiers, and gain adjustment allows for a wide range of tones, from clean sounds to (with slightly excessive input) beautifully harmonically driven sounds.

Multiple Buddy units can be chained together using jumper cables on the circuit board to increase the number of channels.

■ Channels A+B:
-DC Coupling
-100k Input Impedance
-Gain ×2 / +6dB
-Left channel input is normalized to the right channel (connecting only the left channel will supply signal to both L/R channels)

■ Channels C+D:
-AC ​​Coupling
-10k Input Impedance
-Gain ×10 / +20dB
-Supports stereo TRS 3.5mm mini jack input (connects to the L/R mix bus simply by connecting a mini stereo terminal to the left channel), or can be used as two standard MONO inputs
-Can be changed to DC coupling with a solder jumper
-Normalization channel can be changed with a solder jumper

■ Soft Clipping ""ZENER"" Circuit (10vpp Mix Downstage)
■ NE5532 Op-amp Used (Low Noise Preamp)
■ 1k Ohm Output Impedance
■ Multiple units can be chained by connecting jumpers on the board (L/R inputs, L/R Outputs)
The mixdown output is sent to the chain jumper only if there are no connections to the Buddy front panel outputs!

Technical details:

■ Current consumption: +12V: <27mA, -12V: <27mA
■ 5HP ■ Depth: 30mm (with power cable attached)
■ 10-pin power connector