The VR 100K-2 Motorized Volume Control is a high-performance electronic component designed for remote-controlled audio attenuation. This specialized unit integrates a high-quality 100K ohm dual-gang potentiometer with a compact DC motor, allowing for both manual adjustment and automated precision via remote control systems. It is the definitive choice for high-fidelity audio equipment where seamless, motorized volume transitions are required.
Integrated DC Motor Drive: Equipped with a rear-mounted DC motor that enables smooth, motorized rotation of the potentiometer shaft for remote volume leveling.
Dual-Gang Audio Control: Features a multi-pin dual-channel configuration, providing perfectly synchronized volume adjustment for stereo (Left/Right) audio signals.
High-Impedance 100K Rating: Rated at 100KΩ (100K-2), making it ideal for the input stages of pre-amplifiers and high-fidelity integrated amps.
Precision Knurled Shaft: Features a standard split and knurled metal shaft, allowing for the secure attachment of premium control knobs for manual operation.
Tactile Manual Override: The internal clutch mechanism allows for smooth manual adjustment even when the motor is not engaged.
Industrial-Grade Construction: Housed in a durable metal casing with high-quality solder terminals, designed to minimize electronic noise and interference.
Model: VR 100K-2.
Resistance: 100K Ohms.
Potentiometer Type: Dual-gang (Stereo).
Actuation: Manual and Motor-driven.
Terminals: Multi-pin PCB through-hole mounting.
Identification: Clearly labeled with "100KΩB-2" for easy identification during assembly.
Hi-Fi Audio Systems: The core component for adding remote-controlled volume functionality to high-end home theater receivers and tube amplifiers.
Professional Mixing Desks: Used in automated mixing consoles where "flying faders" or motorized knobs are required for scene recall.
Smart Home Integration: Ideal for custom-built audio systems that integrate with central home automation hubs via an external motor driver.
How do I power the motor part of this unit? The rear DC motor typically requires a low-voltage DC power source (often between 3V and 6V). You will need an external motor driver circuit or a dedicated remote control module to trigger the clockwise and counter-clockwise rotation.
Does the motor affect the audio quality? The motor is physically decoupled from the audio path during operation, and the metal housing acts as a shield to prevent electromagnetic interference from entering your audio signal.
Is this a direct replacement for non-motorized pots? While the resistance (100K) might match, motorized units are significantly deeper due to the motor housing. Ensure your amplifier chassis has sufficient internal clearance before upgrading.
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