Product details

The Manley FORCE is a professional four-channel tube microphone preamplifier inspired by the microphone preamp section of Manley’s CORE channel strip. Combining custom Manley Iron® input transformers, high-voltage 12AX7 vacuum tube amplification, and a MOSFET White Follower output stage, it delivers versatile analogue gain and tonal character for professional recording studios. Its compact 2U rackmount design makes it suitable for multi-microphone recording, drums, ensembles, and other demanding studio applications.

Key Features

Four independent high-voltage vacuum tube microphone preamps
Custom Manley Iron® microphone input transformers
One 12AX7WA dual-triode vacuum tube per channel
Class A tube gain stage operating from 300 V rails
MOSFET White Follower output stage
Balanced XLR microphone input and output for each channel
Front-panel ¼-inch high-impedance instrument/direct input per channel
Selectable microphone gain settings
Variable input-level attenuator for controlling incoming signal level
120 Hz high-pass filter on each channel
Polarity inversion on each channel
Switchable +48 V phantom power
Seven-segment LED peak-level metering per channel
Automatic warm-up mute circuit
Universal internal power supply
Hand-built in California, USA
Compact 19-inch, 2U rackmount chassis

Technical Specifications

Product Type: 4-channel vacuum tube microphone preamplifier
Channels: 4
Vacuum Tubes: 4 × 12AX7WA dual triodes
Microphone Inputs: 4 × balanced XLR
Instrument Inputs: 4 × unbalanced ¼-inch Hi-Z
Outputs: 4 × balanced XLR
Microphone Gain: Selectable 40 dB and 50 dB settings; 60 dB available via internal jumper configuration
High-Pass Filter: 120 Hz
Phantom Power: +48 V, independently selectable
Metering: Seven-segment LED peak meter per channel
Power Supply: Universal internal supply, 90–254 VAC
Dimensions: 19-inch rack width × 2U height
Weight: Approximately 3.9 kg