If I don't want treble or bass gain, how should I use the knob?

The bass and treble knobs can work from left to right and the range is ±6dB. If you don't want gain change, please turn the knobs to the 12 o'clock direction.

Will this work with my bluetooth turntable (Angel Horn)?

If the output is phono yes, however, the unit doesn't come with Bluetooth.

Do the headphone port and RCA output at the same time?

Hello. It will output at the same time. Accodring to our customers' needs, we will cancel this feature in the future. And you will be able to listen to your headphone alone and won't disturb others.

Can the tubes be rolled? Which ones would you recommend.

Not sure about that, but assume so. Which one? No idea.

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A1 Tube Phono Preamp: Valve Headphone Amp, Hi-Fi Audiophile Preamplifier for MM Turntable Record Player with Tone Control for Home Stereo Audio System

A1 Tube Phono Preamp: Valve Headphone Amp, Hi-Fi Audiophile Preamplifier for MM Turntable Record Player with Tone Control for Home Stereo Audio System

Product ID: 552783572

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Details

Brand
AMPAPA
Colour
green
Compatible devices
MP3 player MP4
Material
aluminium
Output wattage
1 Watts

💡Warm vintage tube glow

🔊Supports high-impedance headphones

🎛️Dual tone control knobs

Description

🎧 Elevate your vinyl vibes with warm tube magic and precision control!

PREMIUM BUILD QUALITY - Die-cast aluminum shell with CNC machining ensures durability and a sleek, modern aesthetic.
PRECISION TONE CONTROL - Adjust treble and bass effortlessly with solid aluminum knobs for a personalized listening experience.
UNIVERSAL COMPATIBILITY - Seamlessly amplifies signals from MM turntables, MP3/MP4 players, phones, tablets, and more.
WARM VINTAGE TUBE SOUND - Classic JAN GE5654 vacuum tubes deliver rich, detailed audio with enhanced musicality and dynamic range.
COMPLETE AUDIOPHILE PACKAGE - Includes tubes, RCA cable, power adapter, cleaning cloth, and an 18-month warranty for peace of mind.

The A1 Tube Phono Preamp is a high-fidelity valve headphone amplifier designed for MM turntables and a wide range of audio sources. Featuring classic JAN GE5654 vacuum tubes, dual tone controls, and a robust aluminum chassis, it delivers warm, detailed sound with low noise. Compatible with popular high-impedance headphones and active speakers, it offers audiophiles a premium listening experience backed by an 18-month warranty.

Specifications

Power Source	Corded Electric
Output Channel Quantity	2
Amplifier Type	Tube
Connector Type	RCA, 3.5mm Jack
Compatible Devices	Record Player, Turntable, Amplifier, Headphone, Active Speaker
Output Wattage	1 Watts
Item Weight	13.6 ounces
Item Dimensions D x W x H	3.62"D x 6.02"W x 0.98"H
Material Type	Metal
Color	Black

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€ 315.43

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TrustScore 4.5 | 7,300+ reviews