This is the Behringer System 100 297 DUAL PORTAMENTO/CV UTILITIES Module. A portamento and mixer combo and authentic reproduction of the original “System 100M” circuitry from the 80s that can fit in a standard Eurorack case. The best part? It’s at a very affordable price! Mix the 297 in with your existing rig or start your modular synth journey from here. Either way you’re sure to have a lot of fun.

• Combination of amazing portamento controller and CV utilities from the early '80s

• Authentic reproduction of original "System 100M" circuitry

• 2 independent mixers for CV signals with 4 inputs including attenuators

• 2 portamento controller can be modulated via dedicated CV inputs

• 2 constant voltage generators supporting +/- 10 V for maximum control

• CV mixers each feature 2 normal and 2 inverted outputs for extra versatility

• 12 controls give you real-time access to all important parameters

• Eurorack specs: 16 HP, 70 mA +12 V, 60 mA -12 V

Mix Them All

The 297 features two independent mixers for CV signals. These come with four inputs, each with their own attenuators, where you can connect incoming signals from various different sources. The CV mixers also allow you to send mixes of inputs 1-4 in inverted and non-inverted versions for extra versatility.

Portamento

The portamento sections of the 297 each come with a Time control that can be used to adjust the portamento time of a signal connected via input. The signal can then be sent to any module in your setup for more modulation. An external Control Voltage signal can also be plugged in to control the portamento time.

Inputs Mixer signal input   Type

8 x 3.5 mm TS jacks, DC coupled

Impedance

>50 kΩ, unbalanced

Max input level

±10 V

Portamento signal input   Type

2 x 3.5 mm TS jacks, DC coupled

Impedance

95 kΩ, unbalanced

Max input level

+10 V

Portamento CV input   Type

2 x 3.5 mm TS jacks, DC coupled

Impedance

2 MΩ, unbalanced

CV input level

+10 V

Outputs Mixer outputs, inverted & non inverted   Type

8 x 3.5 mm TS jacks, DC coupled

Impedance

50 Ω, unbalanced

Max output level

±10 V

Portamento signal output   Type

2 x 3.5 mm TS jacks, DC coupled

Impedance

250 Ω, unbalanced

Max output level

+10 V

+10 V output   Type

3.5 mm TS jack, DC coupled

Impedance

1 kΩ, unbalanced

Max output level

+10 V

-10 V output   Type

3.5 mm TS jack, DC coupled

Impedance

1 kΩ, unbalanced

Max output level

-10 V

Controls Mixer input level

-∞ to unity gain

Portamento time

10 ms to 3 s

+10 V output voltage control

0 V to +10 V

-10 V output voltage contro

0 V to -10 V

Power Power supply

Eurorack

Current draw

70 mA (+12 V), 60 mA (-12 V)

Physical Dimensions

38 x 81 x 129 mm

(1.5 x 3.2 x 5.1")

Rack units

16 HP

Weight

0.18 kg (0.4 lbs)