Hi-Fi Preamplifiers

Benchmark preamplifiers are designed to accept and deliver studio-level balanced output signals, but they can also deliver state-of-the-art performance when operating at HiFi signal levels which are typically 10 dB lower.

The LA4 and HPA4 feature 30-step relay-controlled input gain stages that drive 256-step relay-controlled attenuators.

At all volume settings, the LA4 and HPA4 optimize the gain structure between the source device (DAC or phono preamp) and the destination device (power amplifier or headphone amplifier). This gain optimization includes the seamless integration of a mix of HiFi and studio components.

The volume control is the weak point of most audio systems. The LA4 and HPA4 eliminate this weak point. Each volume setting is determined by pairs of high-precision fixed-value resistors. Benchmark's LA4 and HPA4 provide the very best analog volume control system available at any price point.

The DAC3 HGC and DAC3 L feature Benchmark's Hybrid Gain Control (HGC). Analog inputs are controlled by a conventional analog potentiometer while digital inputs are controlled by a digital signal processor (DSP). The HGC offers a cost-effective yet high-performance alternative to the LA4 and HPA4.