What is the output impedance? trying to figure out if this would be suitable for sensitive iems.

Hello. It is suitable for 18-600Ω headphones.

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🎧 Elevate your sound game—because your headphones deserve the U10 upgrade!

POWERFUL DUAL OUTPUT - Drive any headphones from 18Ω to 600Ω with up to 1100mW of clean power.
ADVANCED VOLTAGE BOOST - Innovative circuit delivers stable 24V operation from a simple 5V DC input for pristine audio clarity.
VERSATILE CONNECTIVITY - Supports 3.5mm AUX and RCA inputs plus dual headphone jacks (3.5mm & 6.35mm) for seamless multi-device use.
CUSTOMIZABLE TUBE SOUND - Easily swap 6A2 tubes and op amps to tailor your audio signature—warm, natural, and full-bodied.
COMPACT AUDIOPHILE BUILD - All-metal chassis with ceramic tube sockets ensures durability, shielding, and premium sound quality in a mini form factor.

The Douk Audio U10 Mini Tube Headphone Amplifier is a compact yet powerful HiFi preamp designed for audiophiles seeking rich, transparent sound. Featuring dual headphone outputs delivering up to 1100mW, a unique 24V voltage boost circuit powered by a 5V input, and pluggable 6A2 tubes for customizable warmth, it supports a wide range of headphones (18-600Ω) and inputs (3.5mm AUX, RCA). Its robust metal build and advanced design make it ideal for enhancing vocals, classical, and string music with exceptional clarity and depth.

₱7725

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Brand	Douk Audio
Manufacturer	Douk Audio
Product Dimensions	9.5 x 6.9 x 3 cm; 199.58 g
Item part number	U10
Tuner Technology	FM
Mounting Hardware	1 × Acrylic Board, 1 × U10 Headphone Amplifier, 1 × USB to DC Cable, 1 × User Manual, 2 × 6A2 Tube
Number of items	1
Speaker Surround Sound Channel Configuration	5 1 channel
Batteries Included	No
Batteries Required	No
Manufacturer	Douk Audio
Item Weight	200 g

Douk Audio U10 Mini Tube Headphone Amplifier HiFi Stereo Preamp for Home Speaker

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