2a3 RSR Limited RSR Edition parallel

About the 2a3 RSR Limited RSR Edition parallel

The Triode Lab 2A3 RSR Limited RSR Edition parallel is a flagship parallel SET monaural amplifier designed for audiophile performance. It features 8W single-ended Class A autobias operation with a maximum of 10W output and a signal-to-noise ratio of 100 dB or better. The amplifier uses a quad 2A3 tube configuration per channel, driven by 6H30 and CV181 preamp tubes, offering a sweeter tube flavor and sound character. It employs custom Hashimoto output transformers co-designed with Hashimoto Electric Co., Ltd. in Japan, which are critical for achieving low distortion, excellent bass response, and detailed soundstage. The power supply includes dual high-quality Hashimoto choke transformers and uses rectifiers such as GZ34/5AR4 or 5U4/5V4/5T4. The chassis measures 18" W x 12" D x 2" H per block. This limited edition is extremely rare, with only four pairs made, and is It is praised for its superb musicality, timbral realism, resolution, and expansive soundstage, making it a top-tier choice for purist stereo amplification enthusiasts. The amplifier comes with a 10-year warranty and is considered a cost-no-object design incorporating the best components and engineering insights from Triode Lab's founder Frank Ng.