Rolls HA543 Overview

The USA-made Rolls Bellari HA543 is a stereo headphone amplifier offering low-distortion amplification with minimal phase shift for musicians, producers, and engineers in home and project studios. It accepts a stereo source via balanced XLR or unbalanced RCA input jacks, and drives 3.5mm and 1/4" stereo headphone outputs. The stereo RCA output serves as a pass-thru, allowing the input to be connected to a monitor controller, home receiver, or audio recorder.

A single knob provides up to 20 dB of gain for the headphone jacks, which can be disabled via the mute switch. The Enhance function changes the tone sent to the headphone outputs while leaving the RCA output flat. The HA543 is powered via the included 15 VDC power supply, and features a power switch with an LED indicator.

• Dual headphone outputs and stereo RCA pass-thru jacks
• Balanced XLR and unbalanced RCA line-level input jacks
• Adjustable volume with up to 20 dB of gain
• Selectable mute function
• Enhance function applies EQ designed to improve your listening experience when using low-quality headphones
• Power switch with LED indicator

In the box

Rolls Bellari HA543 Stereo Headphone Amplifier

• PS27s 15 VDC 100-240 VAC Wall Power Adapter
• Limited 1-Year Warranty