High-performance 2-channel preamplifier offering ultra-low distortion, wide frequency response, and versatile balanced and unbalanced inputs and outputs. Includes remote control functionality.
The Benchmark LA4 is a precision 2-channel line amplifier designed for professional audio applications. It features a preamplifier architecture with an extensive frequency response ranging from 0.1 Hz to 500 kHz, ensuring accurate signal reproduction. The unit delivers exceptionally low total harmonic distortion of less than 0.00006%, combined with a signal-to-noise ratio exceeding 135 dB, providing pristine audio clarity. Connectivity options include balanced stereo XLR and unbalanced stereo RCA inputs, along with multiple output configurations including stereo and mono XLR and stereo RCA. Additional rear panel I/O supports bidirectional 12 V trigger control via 3.5 mm jacks. The LA4 operates efficiently with a maximum power consumption of 17 W and features a compact form factor measuring 8.7 x 3.5 x 8.3 inches (without feet). Weighing 7.9 pounds, it is suitable for integration into professional audio systems requiring precise line amplification and remote control capability.
- 2.0 channel preamplifier with remote control
- Frequency response: 0.1 Hz to 500 kHz (+0/-3 dB), 10 Hz to 20 kHz (+0/-0 dB)
- Extremely low total harmonic distortion (
- Signal-to-noise ratio greater than 135 dB (unweighted), 137 dB (A-weighted)
- Inputs: 2x stereo XLR balanced, 2x stereo RCA unbalanced
- Outputs: 1x stereo XLR, 1x mono XLR, 1x stereo RCA
- Additional rear I/O: 2x 3.5 mm (1/8") jacks for 12 V bidirectional trigger
- Maximum input level: 20 Vrms; rated output: 20 Vrms at 60 Ohms
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