A Tube Preamplifier

Name: A Tube Preamplifier
Price: 2280.0 USD
Rating: 5 (1 reviews)

$2,280.00

Classic 12AU7 Vacuum Tubes: Three Russian 12AU7 vacuum tubes (two for input, one for output) create a low-output impedance, high-dynamic range amplification circuit for a quiet and dynamic performance.
Audiophile-Grade Components: Featuring audiophile-grade Vishay resistors and Philips, Suren, and Wima capacitors.
Wireless Bluetooth 5.1 with High-Resolution Codecs: Experience CD-quality wireless audio with the advanced 5.1 Bluetooth chip supporting LDAC, aptX-HD, aptX-LL, aptX, SBC, and AAC codecs. The QCC5125 Bluetooth chip combined with the ESS9018 DAC delivers exceptional audio quality and resolution.
Versatile Connectivity: One Bluetooth input and three RCA inputs allow connection to multiple audio sources, easily switched via the front panel knob.
Retro Design with Dual Meters: Spotless A features a retro-inspired design with a 2mm thick, hand-painted steel chassis, metal knobs, and custom-made VU meters.

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Specifications

Input Impedance: 50k Ohm
Output Impedance: 200 OhmGain: 12dBBandwidth: 5Hz - 300kHz (± 1dB)
Vacuum Tubes: 3×12AU7
Bluetooth: 5.1, QCC5125 + ESS9018 LDAC, aptX-HD, aptX-LL, aptX, SBC, AACInputs: 3×RCA + 1×Bluetooth
Dimensions: 400mm × 210mm × 140mm (D×W×H)
Weight: 7kg

What's in the box?

1× Amplifier unit
1× Power cord
1× User manual

Reviews for "A Tube Preamplifier"

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DESIGN PHILOSOPHY

Spotless is committed to purity, simplicity, and the pursuit of truth, crafting a brand that is authentic, beautiful, and rational. We uphold our unique form and original design, infusing each product with thought and emotion to give it life, making each step towards our goal meaningful.

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PURE PRE-STAGE ANALOG AMPLIFICATION

Spotless A is a pure Class-A analog preamplifier designed for pristine signal transfer. It offers versatile connectivity with three sets of RCA inputs for wired sources and a dedicated Bluetooth input, allowing simultaneous connection of up to four audio sources.

A front-panel knob enables seamless switching between inputs. High-quality components like a Taiwan-manufactured power socket with integrated fuse protection, pure copper conductors, and a robust double-throw alloy connector with silver contact points ensure optimal signal integrity and load capacity.

GOLD-PLATED RCA JACKS

Spotless A features high-quality, Taiwan-made AEC connectors with thickened, pure copper, gold-plated RCA jacks. These premium connectors are meticulously crafted with durable, fade-resistant gold plating, ensuring optimal signal transfer and pristine audio quality.

The robust construction and superior materials contribute significantly to the Spotless A's exceptional sonic performance and long-term reliability.

WIRELESS FIDELITY \ BLUETOOTH 5.1 WITH HIGH-RESOLUTION AUDIO SUPPORT

Spotless A delivers CD-quality wireless audio streaming in the comfort of your home, thanks to its advanced Bluetooth 5.1 technology featuring the QCC5125 chipset and an ESS9018 DAC. Supporting high-resolution codecs like LDAC and aptX-HD (up to 24bit/96kHz), the Spotless A ensures pristine wireless audio reproduction.

Custom-tuned decoding further enhances sound quality and clarity, providing a smooth, detailed listening experience. Stable connections and faster transmission speeds complete the package, allowing you to enjoy high-fidelity audio without the constraints of cables.

Supported codecs include LDAC, aptX-HD, aptX-LL, aptX, SBC, and AAC.

CUSTOM EI TRANSFORMER

Spotless A's power supply is built around a custom-designed EI transformer, meticulously crafted using premium materials and expert engineering.

This transformer features new Japanese Z11 silicon steel and 5N oxygen-free copper windings for optimal performance. After rectification, the power flows through a high-speed, high-current MOSFET voltage regulation circuit, ensuring a stable and clean power supply for the amplification stage.

This carefully designed power section contributes to the Spotless A's robust midrange, delicate high-frequency detail, wide frequency response, and overall sonic clarity.

TRIO OF 12AU7 VACUUM TUBES

Spotless A utilizes three carefully selected, Russian-made 12AU7 vacuum tubes, renowned among audiophiles for their warm, rich tonality.

Two tubes handle the input stage, while the third manages the output, creating a low-output impedance, high-dynamic range amplification circuit.

This configuration results in a remarkably quiet noise floor and a dynamic, engaging performance, capturing the nuances and energy of your music.

PREMIUM COMPONENT SELECTION

Spotless A's circuitry is built using a fully discrete component topology, featuring meticulously selected, premium components.

Vishay resistors, known for their precision and stability, are employed throughout the circuit. High-quality capacitors from renowned manufacturers like Philips, Solen, and WIMA further enhance performance, offering high stability, low internal resistance, and exceptional sonic characteristics.

Precise component matching ensures consistent sound quality and unwavering performance.

Spotless Audio

LOVE AND FAITH TOGETHER

SPOTLESS A \ A TIMELESS BLEND OF RETRO DESIGN AND MODERN PERFORMANCE

The Spotless A preamplifier embodies timeless elegance, echoing the iconic retro aesthetic of the Spotless line with its hand-painted steel chassis, tactile metal knobs, and bespoke dual VU meters. As music plays, the precision meters glow with a warm golden light, their needles dancing rhythmically, adding a touch of vintage charm. Beyond its striking appearance, the Spotless A boasts meticulously engineered performance capabilities, blending classic industrial design with modern technology to create a sonic experience that evokes the warmth of the past while delivering the fidelity of the present.

Spotless components are designed to work together seamlessly as a complete, "matching set" system. This approach ensures consistent functionality, a unified sonic signature, and maximum efficiency, freeing the listener from the complexities of component matching. The shared "family face" design language—featuring elegant black steel chassis, captivating VU meters, tactile knobs, and subtle branding—creates a harmonious and unified system, exuding a sense of understated classical beauty where every element contributes to a seamlessly integrated whole.

DIMENSIONS

FAQs

HOW LONG DO YOU PROCESS MY ORDER?

Orders for in-stock products are typically processed within 1~3 business days. However, during peak seasons, processing times may be longer.

For customized orders, please contact us directly. We will assign you an expert to support and guide you through the process.

DO YOU OFFER FREE SHIPPING?

Yes, we provide free shipping to many countries. All packages include a tracking number, allowing you to track the location of your parcels at any time.

WHAT SHOULD I DO IF I CAN'T PLACE AN ORDER TO MY COUNTRY?

If you're unable to place an order to your country, please contact us for assistance.

WHAT ARE THE ESTIMATED DELIVERY TIMES?

Continental U.S.: 5 to 14 business days
Hawaii and Puerto Rico: 2 to 4 weeks
Canada: 1 to 3 weeks
Australia, New Zealand, Germany, France, and the UK: 2 to 4 weeks
Other countries: 3 to 6 weeks

WHAT IS YOUR RETURN POLICY?

We offer a 30-day return policy from the received date. Returned items must be in new condition with original packaging and accessories. Customized orders are not covered under the return policy. Customers are responsible for return shipping costs, which are non-refundable.

For more details, please check the the shipping and return policy.