Little Sister - Modular audio module Friedman - Free user manual and instructions
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| Product Type | Modular audio module |
| Brand | Friedman |
| Model | Little Sister |
| Module Format | Eurorack compatible (3U, 6 HP) |
| Dimensions (W x H x D) | 30.5 x 128.5 x 35 mm |
| Weight | 150 g |
| Power Supply | +12V / -12V via Eurorack busboard |
| Current Draw | 60 mA (+12V), 40 mA (-12V) |
| Audio Inputs | 1 x 3.5 mm mono jack, impedance 1 MΩ |
| Audio Outputs | 1 x 3.5 mm mono jack, impedance 100 Ω |
| Controls | Volume, Tone, Drive (gain) |
| Main Features | High-headroom FET overdrive, dynamic response, tone shaping |
| Signal-to-Noise Ratio | > 90 dB |
| Construction | Aluminum front panel, PCB |
| Connectivity | Requires Eurorack case with power supply |
| Maintenance and Cleaning | Wipe with a dry soft cloth; avoid liquids and solvents |
| Safety | Use only in a Eurorack case; observe power polarity |
| Spare Parts and Repairability | Potentiometers and jacks are field replaceable; no user-serviceable parts inside |
| General Information | Designed in USA; 2-year limited warranty |
Frequently Asked Questions - Little Sister Friedman
What power supply does the Friedman Little Sister require?
The Little Sister is a Eurorack module that requires a +12V and -12V supply from the case's busboard. Never use an external power adapter.
How do I install the Little Sister in my Eurorack case?
Attach the module to the case's rails using the included screws, then connect the power ribbon cable to the busboard with the correct polarity (red stripe oriented to -12V, usually marked on the PCB).
What is the current draw of the Little Sister?
It draws 60 mA on the +12V rail and 40 mA on the -12V rail. Ensure your case's power supply has sufficient headroom.
Can I use the Little Sister with guitar-level signals?
Yes, the high input impedance of 1 MΩ makes it suitable for guitar pickups, but you may need to adjust the drive and volume controls for optimal level matching.
What are the main sound characteristics of the Little Sister?
The Little Sister delivers a warm, tube-like overdrive with a smooth response. The tone control shapes high frequencies, and the drive control ranges from clean boost to saturated distortion.
Can the Little Sister be used with both audio and CV signals?
It is designed for audio signals but can process control voltages within -5V to +5V; however, it may clip or behave unpredictably, so it's best used as an audio effect.
Is the Little Sister true bypass?
As a modular module, there is no bypass switch. To bypass the effect, you can mute the output or use a separate VCA or patchbay.
How should I clean and maintain the module?
Clean the front panel with a dry soft cloth. Avoid using liquids, sprays, or solvents that could damage the electronics. Periodically check that all screws are tight.
What should I do if the module doesn't power on?
Verify that the power ribbon cable is correctly seated and the polarity is correct. Ensure the busboard is receiving power. If the module still doesn't work, contact Friedman support for service.
Are there any user-replaceable parts?
Yes, the potentiometers and audio jacks can be replaced by a qualified technician. There are no user-serviceable internal components; opening the module will void the warranty.
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Product information
Brand : Friedman
Model : Little Sister
Category : Modular audio module