Spotless A1 Amp

Spotless A1 Amplifier Tube Integrated 100W


MSRP: $1499.00

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Spotless Audio


Spotless is an authentic, simple, approachable, and unpretentious brand of traditional handicrafts.

We believe in sticking to our ideas and original designs, injecting thoughts and emotions into every detail and every product, to give it more vitality. We don’t strive for perfection; we strive to hold the nostalgic mood and to interpret the artisanal sentiment of age, to the old traditional handicraft works, which remind us how to listen to the years’ footprints.

Whether auditory, visual, or tactile, our handicrafts will quietly wait for your heart to approach them, understand them, and feel them.

spotless audio logo

Spotless A1 bookshelf speaker amplifier

Flagship amplifier of 2021

The strongest playback system to date. It is made for you who beautify the world with love. With joy, listening together!


Original Preamp Suspension System

To reduce physical and sonic vibrations. Patented innovation for acoustic sound.


Exclusive Power Transformers

Using two transformers, a preamp, and a poweramp independent power supply. Natural and balanced sound with a charming analog flavor.


Wireless Connection

Bluetooth 5.1 technology
CSR8675+ESS9018 decoding
Support LDAC, APT-X


High Power

100W (8 ohms per channel)
Sound performance is steady with a broad field.


Vintage Appearance

Iron hand-painted cabinet.
Dual VU meters design.
Tailor-made solid aluminum knobs.



VISHAY koa resistor VISHAY bc
Panasonic capacitor ON transistor

A1 tube amp dual VU meters

Fully manual discrete components.

Preamp & power amp independent power supply solution.

Spotless A1 preamp uses 6N8P 6P6P electronic tubes for a two-stage amplification and a feedback-free design. The power supply is in the form of tube parallel voltage regulation. Give full play to the feedback-free form of the circuit sound effect with vivid and natural features.

The power supply part uses the characteristic UI-type transformer. Sound balance and warm, so that the sound is more infectious!

spotless a1 suspension system

Original preamp suspension system to reduce physical and sonic vibrations.

Spotless A1 integrated tube amp suspension system follows the principle of sound isolation suspension. The top preamp part is a suspension layer to reduce the external vibrations. In the sound isolation suspension system, the preamp and space slight vibration and acoustic vibration isolation so that the preamp work will not be affected by excess vibration brought about by standing waves. The sound’s clarity and accuracy are guaranteed.

back view of spotless a1 amp

Bluetooth 5.1 APTX-HD LDAC,

CD-class sound quality of pure wireless sound.

Spotless A1 vintage tube amp uses the latest Bluetooth 5.1 chip. Faster transmission speed, stronger signal, more stable connection, and lower power consumption.

Bluetooth decoding support protocols: LDAC, APTX-HD, APTX-LL, APTX, SBC, AAC.

Spotless’ Al applies Bluetooth receiver audio technology with APTX-HD, supports LDAC protocol, and supports up to 24-bit/96khz, allowing us to listen to music with better sound quality even with wireless devices. Enjoy the pure wireless sound of CD-quality audio anywhere, anytime.

Bluetooth mode comes with QCC5125 + ESS9018 featured decoder to improve sound quality and analysis for better noise suppression. Make the sound more transparent and smoother. When listening to music, you will feel the strong flavor of the vacuum tube analog.

6n6p 6n8p tubes

Wisdom makes the design steady.

The design makes the sound graceful.

The A1 class AB tube amplifier is powered by an independent power transformer, Philips filter capacitors, and three WY3P tubes to form a parallel voltage regulator circuit, which provides a stable power supply.

The amplification part uses 6NSP and two 6P6P tubes, with selected high current design discrete post-stage circuit components. Sound performance is balanced, smooth, and dynamic with a broad field.

Spotless A1 is mid-to-high-end stereo music listening tube amplifier. It’s designed for bookshelf speakers or 8”-12″ relatively neutral speakers to strengthen the dynamic and thick sound bottom to make the music more smooth, natural, and steady!

Philips capacity

No compromise, adapt to reality with action.

The development of the Spotless A1 amplifier was a long journey. Its bold and innovative appearance and complex structure have undergone numerous modifications to the design, process, painting, wiring comparison, and verification.

The chassis shell uses a unique steel plate precision laser-cutting process, including more than twenty kinds of screws, custom solid aluminum knobs, dual-channel level meter head, three groups of RCA input, and a set of Bluetooth input.

No detail has been compromised in presenting the original Spotless family lineage.

bluetooth tube amplifier
vintage tube amplifier

Tech Specifications

Output Power

2 x 100 watts

Power Supply

110V, 50Hz

220V, 50Hz

Audio Input

RCA *3

Bluetooth 5.1 *1

Frequency Response

20~20 KHz


<1% / 1w 1kHz

Output Impedance

4~8 OHM

Input Sensitivity



230*230*250 mm


13.75 KGS

Spotless A1 amplifier specifications

What’s in the Box


Amplifier *1

Tubes *6

Power Cord *2

Grid *1

Driver *1

Antenna *1

Manual *1

Spotless A1 amplifier accessories
Spotless A1 class ab tube amp
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