preamplifiers

high performance

Boost your audio with Tibbetts’ precision-engineered for clarity and reliability, ensuring optimal audio performance in various professional settings. Designed for surveillance, installation, and monitoring applications. Discover our complete line of professional-grade microphone preamplifiers engineered for consistent audio capture. Whether you need stereo, mono, adjustable, or multi-channel preamps, Tibbetts delivers rugged and reliable audio amplification solutions.

one channel series

scp 2.2

Mono Line-Level Amplifier with Transformer Isolation

Channels: 1 (Mono)

Gain Control: 4-step fixed (40–58 dB)

Output: Transformer-coupled 600Ω terminal block

Protection: Up to 80 VDC power input and ring detection

Application: Secure single-microphone setups needing balanced output and high-voltage tolerance

two channel series

msp 2 .0

Fixed-Gain Inline Preamp for Surveillance Microphones

Channels: 2 (Stereo)

Gain Control: 4-step fixed (40–58 dB)

Connectors: Dual RCA output

Key Features: Built-in soft limiter (max 0.5Vrms), Telocate connector, DC jack power input

Power Supply: +5 to 12 VDC | < 2.0 mA

Ideal For: Line-level signal boosting from mic-level audio in recording and monitoring systems

MPS 2 .1

Balanced Output Preamplifier with High-Voltage Protection

Channels: 2 (Stereo)

Gain Control: 4-step fixed (40–58 dB)

Output Type: Transformer-coupled screw terminal (600Ω balanced)

Input Protection: Ring detection (up to ~65VDC)

Power Options: +5 to 12 VDC (jack), +5 to 80 VDC (terminal)

Best Use Case: Environments with telephone line voltages or where balanced audio signals are required

msp 2A

Adjustable Gain Preamplifier for Flexible Installations

Channels: 2 (Stereo)

Gain Range: Fully adjustable from 0 to 62 dB

Power Supply: +5 to 12 VDC | < 2.0 mA

Microphone Bias: 4.8 VDC

Best For: Professional installers needing adaptable audio levels for custom mic setups

PPA 1.1

Portable Preamp for Mic Setup & Testing

Channels: 2 (Stereo)

Gain Control: 4-step adjustable (40–58 dB) with LED limiter indicator

Output: 3.5 mm stereo headphone jack

Power: 9V battery with auto shut-off

Purpose: Field-testing and gain-setting tool for surveillance mic installations

four channel series

msp 4a

High-Capacity Audio Preamplifier with Adjustable Gain

  • Channels: 4

  • Gain Range: Adjustable (0–62 dB)

  • Power Supply: +5 to 12 VDC | < 3.0 mA

  • Use Case: Large-scale audio monitoring setups requiring multiple stereo microphone inputs

power supplies

BATTERY TUBES

Portable battery tubes compatible with all series