The DREI Triple Single-Ended Amplifier from Palmer features three single-ended Class A tube circuits in one unit, providing three times the output. Typically, the output of a single-ended circuit does not exceed 5 watts and operate at full power all the time, so the volume can be cranked for power amp saturation to create the overdriven tones, including intense crunch and distortion, but without the ear-splitting levels. Each circuit in the DREI is capable of providing organic and raw tube tones. The three individual circuits each accept a variety of different output tubes, which allows for a wide array of tonal possibilities with characteristics for more gain or cleaner tones with more headroom. In the DREI, these individual circuits can be used separately or combined, allowing you to mix and match power tubes for three distinct amplifier tones which can be combined to craft a unique sound tailored to your personal preference.
The DREI comes set up with three different power tubes: an EL84 for bright, British characteristics similar to those of a VOX AC30; a 6V6 for smooth, American-flavored distorted tones reminiscent of smaller Fender amplifiers like the Champ and Deluxe models; and a 6L6, which is used in higher-powered Fender amps like the Bassman and Twin, for round, warm, and clear tones. As noted, other output tubes can be used to shape your tone as desired.
The DREI's front panel provides a single instrument input and separate power controls for each circuit, along with a master tone control, controls for normal preamp saturation, and preamp saturation treble levels. The back panel features three speaker outputs to accommodate cabinets with 4-, 8-, and 16-Ohm impedance.