2-Input Mixer for cello, with filters +extras

2-Input Mixer customized for use with Cello piezo pickups.

The mixer features two input channels (A, B) with very high input impedance (10MΩ) so that it can be used with instruments equipped with piezo pickups. Of course, it's also compatible with typical magnetic pickups. This specific custom version is also equipped with filters suitable for use with cello, boost function with a wide range (0-20dB) and it also features variable output impedance to help the user combine this mixer with vintage effects (e.g. older fuzzes) that "prefer" to see higher output impedances from the previous stage.

It features separate controls for each channel:

• Input Volume control
• Variable Low Pass Filter (16,5kHz - 220Hz)
• Variable High Pass Filter (200Hz - 20Hz)

and additional controls for the output:

• Boost control (0dB to 20dB)
• Variable output impedance (~0 - 220kΩ)

Additionally, a phase inversion switch is available for channel-B in order to help you overcome any phasing issues that may come up.

The mixer can handle instrument level signals and higher line level signals as well. If you need more headroom you can use a power supply larger than 9V (max. 24V). 

 

 

▹ Input Impedance: 10MΩ
▹ Output Impedance: ~0-220kΩ
▹ Voltage Required: DC 9-24 Volt
[Do not exceed recommended voltage! It may damage the circuit.]
▹ Polarity: Center negative
▹ Max Current draw: 14mA (@ 9V)  

 

Read more info about piezo pickups:

- Getting the Best Sound from Your Piezo Pickup: What a Buffer Really Does 

- Piezo Buffers Explained: Better Tone, Less Noise for Acoustic Instruments  

 

▻ Compact 2-input mixer

▻ 2-Loop KRAMA Blender, V3.0 (Type-1)

▻ Matrix Mixers