Boredbrain Music - injectr
- Order number: 210576
- Depth: 27
injectr is a fully-equipped interface to bring guitars and bass-guitars directly into your eurorack system, including an overdrive-capable preamp, versatile amp simulator, and control voltage extractors.
The injectr module features a high-impedance instrument input (INST IN) that feeds straight into a variable gain circuit which can produce a wide range of tonal responses, from clean to heavily overdriven. The DRIVE parameter has a smooth character, made possible by a soft-clipping topology using a classic 4558 op amp and four (silicon and germanium) diodes.
With the post-drive LEVEL control, you can trim the output of the preamp stage. Because guitars tend to have strong transients, you should adjust the LEVEL control so that the LED is illuminated with moderate to heavy playing.
The CV extractor circuit is a responsive envelope follower, that produces a control voltage signal at the ENV output jack based upon the input’s volume dynamics. The ENVELOPE parameter adjusts the sensitivity of the circuit and the switch labeled SLOW MED FAST selects the response time. An inverted copy of the envelope follower output is present at the ENV- output jack.
Additionally, a 5V gate control signal is present at the GATE output jack, which is derived from the envelope signal. The sensitivity of the gate extractor circuit is adjusted using the GATE parameter, which sets the threshold at which the gate signal is triggered.
One of injectr’s most unique features is the Amp Simulator circuit, that is using a complex arrangement of analog filters to add an amplifier-like quality to your audio signal. The CHARACTER parameter alone can dramatically adjust the sound, giving you control over the middle “dip” frequency and bandwidth. The PRESENCE parameter adjusts the low-end response, thickening or thinning the overall tone, whereas the BRIGHT switch enhances high frequencies. The Amp Simulator can also be toggled off, if you feel your signal doesn’t need it.
To increase the tonal possibilities Injectr is equipped with a eurorack-level effects loop, to process the signal after the Preamp/Drive circuit but before the Amp Simulator.
The OUT jack provides eurorack-level and the LINE OUT jack provides the same signal at line-level, suitable for sending the signal out to external gear, interfaces and amplifiers.High-impedance input for electric instruments
- Preamp drive circuit with germanium diodes
- Amp simulator with analog tone shaping controls
- Envelope follower and gate voltage extractors
- Dedicated eurorack-level FX loop
- Eurorack and line-level audio outputs
Attention: High-gain modules such as overdrive/distortion and intense compression may cause unwanted feedback in the FX Loop, and so are best patched after injectr from the OUT jack.
HE: | 3 |
TE: | 11 |
Depth: | 27 |
Power consumption +12V: | 38 |
Power consumption -12V: | 30 |
injectr @Bored Brain
Manual
Boredbrain focus on utility modules for Eurorack systems. Their high-quality interfaces allow for easy audio routing.