Rolls RA235 Stereo Power Amplifier, 35W/Channel, 1/4-Inch and RCA Inputs, 1U

Rolls RA235: Clean 35-Watt Stereo Amplification in a Compact 1U

The Rolls RA235 is a stereo power amplifier delivering 35 watts per channel into 4 ohms and 30 watts into 8 ohms from a single-rack-space chassis. It exists for the many jobs that need real, clean stereo power but not the size and heat of a big amplifier: nearfield studio monitors, small install speakers, and low-wattage background music. Both channels run from a shared, quiet output stage with generous audio bandwidth, so the modest wattage arrives clean rather than strained. Spring-loaded speaker terminals and 1/4-inch plus RCA inputs make it fast to wire into any rig. For a desktop or rack that needs compact stereo amplification done right, the RA235 is sized exactly for the task.

35 Watts Per Channel of Studio-Grade Power

The RA235 produces 35 watts per channel into 4 ohms and 30 watts into 8 ohms, enough to drive nearfield monitors or small speakers to a satisfying, undistorted level. In a small room, that wattage is plenty: monitor amplification is about clarity and control, not brute volume, and the RA235's clean output serves that well. Because the amp is not being pushed to fill a large space, it runs cool and quiet while staying faithful to the source. A 34 dB gain figure makes it easy to drive from any line-level mixer or interface output. For a project studio or editing suite, that right-sized power keeps monitoring honest without wasting rack space on capacity it will never use.

Flexible 1/4-Inch and RCA Inputs

The RA235 accepts sources on both 1/4-inch and RCA inputs with a 47k ohm input impedance, so it connects to pro and consumer gear without adapters. A studio mixer's 1/4-inch output and a media player's RCA jacks both drop straight in, and the high input impedance means neither source is loaded down or altered. Having both connector types on one amp removes the level and impedance mismatches that plague makeshift monitor setups. That flexibility lets the RA235 sit at the end of a monitor chain or feed a small background-music system with equal ease. For anyone wiring a compact system from mixed gear, dual inputs mean the amp fits whatever is already on the desk.

Spring-Loaded Terminals and Front-Panel Cooling

Speaker connections use spring-loaded terminals that accept bare wire with a quick push, so hooking up monitors or install speakers takes seconds. Front-panel heat sinking vents the output stage's warmth out the front rather than trapping it in a closed rack, which lets the amp run reliably without a fan. Fanless operation matters in a studio, where a cooling fan's whir would color the very monitoring the amp exists to power. The quick-connect terminals suit both permanent installs and setups that get rewired often. For a quiet control room or a tidy install rack, that combination of easy wiring and silent cooling is exactly what a small amp should offer.

Wide, Clean Audio Performance

The RA235 specifies a 5 Hz to 40 kHz frequency response and a 114 dB signal-to-noise ratio at full output, with a protected output stage. That very wide frequency response means the amp passes full-range program material without rolling off the extremes, preserving the detail monitors are meant to reveal. A 114 dB signal-to-noise figure keeps the amp silent between passages, so there is no hiss over quiet monitor mixes. Output protection guards the stage against shorts and overloads from real-world speaker wiring. For critical nearfield listening where the amp should be invisible, those specifications are what let the RA235 stay out of the way of the sound.

Built for Nearfield Monitoring and Small Installs

The RA235 is made for powering studio nearfield monitors, small install speakers, and low-wattage background-music or paging systems where a compact stereo amp fits best. A project studio uses it to drive a pair of passive monitors, and it is often paired with the Rolls MX153 Mix Mate as a tidy desktop monitoring stack. A small retail or office space uses it for quiet background audio without over-buying amplifier power. Its 1U, 5.5-pound chassis fits slim racks and desktops where a larger amp would not. For anyone who needs clean, right-sized stereo amplification in a small footprint, the RA235 is purpose-built for the job.