336SE

About the 336SE

The DarkVoice 336SE is a highly regarded OTL tube headphone amplifier capable of driving headphones with impedance from 32 to 600 Ohms. It features an all-tube signal path without output transformers, delivering warm midrange, detailed highs, and transparent bass. The amplifier uses 6N8P and 6N5P tubes, with 10 tubes included for tube rolling to customize sound. It also functions as a tube-based pre-amplifier for speaker systems. The unit is built with high-quality components, including anodized black metal and glass surfaces, gold-plated RCA connectors, and a robust power supply enclosure, weighing about 11.5 lbs. It has a frequency response of 10 Hz to 30 kHz ±1 dB, signal-to-noise ratio over 100 dB, power handling capacity of 1 watt, and distortion under 2%. The amplifier outputs via a 1/4 inch stereo jack and RCA jack for pre-amp use, with RCA input. It is praised for its warm, rich sound signature, especially with high-impedance headphones like Sennheiser HD600 series, and is popular among audiophiles for its sound quality and customization options. However, it is relatively heavy, generates heat during use, and lacks modern digital inputs such as USB or optical. The product is considered end-of-life but remains a solid choice for tube amp enthusiasts on a budget.