Lake People F311-D 2-Channel Microphone Preamplifier

The Lake People F311-D 2-channel microphone preamplifier is designed for studio and location recording, bypassing subpar mixing console preamps, or direct-to-tape applications. With ultra-low inherent noise, precise step-switched gain control, and a wide, flat frequency response, the F311-D delivers exceptional audio fidelity and operational consistency. Phantom power, lo-cut filtering, and phase reversal provide versatility for professional recording scenarios, while both balanced XLR and unbalanced RCA outputs ensure compatibility with a wide range of setups. Built for reliability, the F311-D is equally at home in fixed installations and demanding mobile recording environments.

Product Specifications:

Type: 2-channel microphone preamplifier

Gain Range: 0 … +66 dB (12 steps, 6 dB increments)

Input Impedance: 5 kΩ

Output Impedance: < 30 Ω

Maximum Input Level: > +21 dBu

Maximum Output Level: > +25 dBu

Frequency Response: 5 Hz – 150 kHz (-3 dB)

Signal-to-Noise Ratio: -129 dB (@ 60 dB gain)

THD+N: < 0.001% (@ -1 dBFS)

Functions: Lo-cut filter (70 Hz), 48V phantom power, phase reversal, 7-step LED level display

Outputs: Balanced XLR, unbalanced RCA

Power Supply: Internal, 230 V / 115 V AC (switchable)

Dimensions: 483 × 44 × 166 mm (W × H × D)

Housing: 19” rack-mount / 1U

Dimensions: 19 x 6.5 x 1.7"

Shipping Weight: 7 lbs.

Shipping Dimensions (LxWxH): 22.3 x 10.7 x 5"