Manley Force 4-channel Tube Microphone Preamp

The Manley FORCE® is a high-voltage, four‐channel vacuum-tube microphone preamplifier that brings premium studio performance to your setup. Built in California and derived from the acclaimed Manley CORE®, the FORCE delivers four channels of pure Class A tube gain with serious headroom and sonic clarity.

Each channel features gold-plated XLR mic inputs through the Manley IRON® transformer, front-panel ¼″ instrument/line inputs, dual gain options (40 dB or 50 dB, with internal 60 dB available), a 120 Hz high-pass filter, phase reverse switch and ± 10 dB “Variable Input Pad” style input level control.

Underlying the FORCE’s performance is the purpose-built MANLEY POWER® high-voltage power supply, delivering regulated 300 V rails and ultra-low-noise operation typically unseen in standard preamps. With ultra-low distortion (THD 0.004% at +4 dBu, Low Gain) and a frequency response of 20 Hz-20 kHz (-0.1/+0.3 dB), it offers exceptional accuracy and musicality.

The sleek 2U rack chassis features ergonomic controls, bullet-proof rotary potentiometers, positive-latch switches, and stylish CNC-milled accents—making it as much a visual statement as a sonic tool. It’s engineered not just to perform, but to inspire.

Ideal for vocals, instruments, keyboards or any source demanding pristine clarity and dynamic range, the Manley FORCE at Marshall Music is your gateway to pro-level analog tone without compromise.

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