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The Cayin RU3 is a combined USB DAC and headphone amplifier—designed to provide a powerful, high-quality sonic alternative to the typically weak headphone outputs of mobile devices.

The Cayin RU7 is a USB DAC and headphone amplifier in one - built to provide a powerful alternative to the usually weak headphone outputs of mobile devices, but good enough to stand up to stationary setups as well.

The reference headphones for demanding audiophiles, HD600. 

Sennheiser HDB 630: high-end closed-back Bluetooth headphones with 42 mm drivers, aptX Adaptive, 60 h battery life, EQ, crossfeed and USB-C Hi-Res audio.

For over 30 years, the reference sound for lovers of neutrality — a legend in the world of headphones: the HD 650.

The ultimate portable tube USB DAC (amplifier): Cayin RU9

Enjoy your music on a completely new level. An intimate, relaxed sound signature combines with outstanding precision and exceptional comfort — and now, extended sub bass — for a deeply moving experience.

Feliks Audio Echo Classic – handcrafted tube headphone amplifier from Poland. Warm, natural sound, 350 mW output, ideal for 80–600 Ω headphones.

Feliks Audio Echo Vibe – handcrafted tube amplifier from Poland with warm, detailed sound, 350 mW power, 20 dB gain and modern wood-accented design.

Small but mighty: Cayin Audio presents its new, tiny but mighty Class A headphone amplifier that packs a punch. With the iHA-8, the tube genius returns to the transistor world and delivers almost 20 watts of Class A power in a compact desktop format.

The new HA-2A from Cayin sets new standards in audio performance as a balanced tube headphone amplifier with selected NOS tubes.

Modern, good-sounding streamer that can be excellently combined with the iDAC-8 and iHA-8.

After the flagship music player Cayin N30LE, which was equipped with AKM AK4499EQs converter and a tube output stage and received rave reviews, now comes the new tube DAC/preamplifier iDAC-8. The iDAC-8 stands for a unique sound experience with a tandem of AK4191EQ - AK4499EXEQ converter chips and a 6H6b-B tube circuit.

The Cayin HA-3A is a feast for the eyes and ears: visually, the headphone amplifier scores points with its glowing tubes, shiny housing and attractive aluminum front, while the analog flair is underlined by the pointer-armored VU meters. Acoustically, excellent transformers and transformers as well as the puristic two-stage amplifier circuit in Class A operation and single-ended design ensure extremely clear, clean, dynamic and powerful amplification with ample reserves.

Combining the care of a handcrafted instrument and the precision of modern manufacturing, the HD 800 S allows you to explore your entire music collection from the inside out.

Whether you’re trying to tame slightly bright headphones without smearing over the resolution of your source, or you're seeking out something that will add a touch of warmth and vibrancy to your system, the Elise is a highly capable amplifier for a wide range of headphones.

Critics said closed headphones cannot have immersive sound like their open counterparts. They said physics would never allow it. Sennheisers response to those words is, "Listen." The HD 820s combine innovative glass reflector and ring radiator transducer technology for an inimitable listening experience.

Final Audio DX6000 combine magnesium drivers, Japanese craftsmanship and supreme comfort for a pure, natural and lifelike listening experience.

For the highest demands on mobile audio - the Cayin C9 II, a tube amplifier for your jacket pocket, with Nutube tubes and customizable sound characteristics.

The new Feliks Audio Euforia EVO uses all of the upgraded internals from the 20th Anniversary Euforia from Feliks Audio, and has a stunning new faceplate design with XLR output. Easily drive headphones from 32 to 600 ohms, including planar magnetics.