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Thermidt

Hi Fi Tube Amplifier

Thermidt is a high-end tube amplifier designed for listeners who demand richness, precision, and emotional realism from every recording. Built around a proprietary Negative Cathode Feedback (NCF) architecture, it delivers exceptional clarity, tight bass control, and outstanding stability. Producing 2 × 21 W in Class AB push-pull, Thermidt pairs effortlessly with both 4 Ω and 8 Ω speakers, including studio monitors such as the Yamaha NS10. From rediscovering classic albums to refining critical mixes, Thermidt reveals depth, texture, and musical vitality without sacrificing accuracy or control.
Overview
Specifications

Experience Rich, Detailed, and Vibrant Sound
Thermidt is voiced for audio enthusiasts and professionals who value musicality as much as precision. Its Negative Cathode Feedback (NCF) design enhances clarity, tightens low-frequency response, and improves overall stability, allowing recordings to sound alive yet controlled.

Precision Tube Design for High-Fidelity Performance
Operating in Class AB push-pull with fixed bias, Thermidt delivers 2 × 21 W with distortion kept below 0.15% at 20 W. The power stage uses four 7189 / 6N14P-EV tubes, driven by dual 6BL8 triode-pentodes, while the preamp stage supports either 6N2P-EV or 12AX7 tubes via a selectable jumper. Three listening modes—Flat, Bass, and Loudness—allow fine tailoring of tonal balance.

Robust Elegance with Thoughtful Details
An 8 mm CNC-machined top plate anchors the design, combining durability with understated elegance. Carefully engineered ventilation creates a chimney-effect cooling path, extending tube lifespan. Gold-plated speaker terminals, Cinch inputs, and intuitive controls ensure a refined user experience.

Seamless Connectivity and Enduring Reliability
With 775 mV RMS input sensitivity, Thermidt integrates effortlessly with CD players, TVs, AUX sources, and a built-in DLHiFi 5.1 Bluetooth module supporting 24-bit / 192 kHz streaming over long distances. Custom Z11 grain-oriented steel output transformers, designed exclusively for this project under UTM Industry supervision, ensure lasting performance and exceptional sonic integrity.

Specifications

Harmonic Distortion Max 0.15% @ 15 W, 100 Hz
Inputs 3 pairs of RCA connectors
Input Sensitivity 0.775 V
Input Pad 3 pairs of RCA connectors
DAC / Bluetooth Codecs LDAC, aptX HD, aptX-LL, aptX, SBC, AAC (24-bit / 96 kHz)
Bluetooth Chipset QCC5125
Output Impedance 4 Ω or 8 Ω
Signal-to-Noise Ratio >52 dB
Frequency Response 10 Hz – 80 kHz ±1 dB
IMD Max 0.85% @ 15 W, 50 Hz
Power Consumption 150 VA
Power Supply 230 / 110 V AC, 50–60 Hz
Dimensions 55 × 45 × 20 cm
Shipping Weight 27 kg
Tone Control Flat, Bass (+6 dB @ 100 Hz), Loudness
Tube Complement 2 × 6P14P-EV, 2 × 6F1P, 2 × 6N2P-EV (12AX7)

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Products
Brands
500 Series Atas Audio

500 Series

500 Series Chassis

500-Series Chassis

Dynamics Atas Audio

Dynamics

Equalizers Atas Audio

Equalizers

Monitor Controllers Atas Audio

Monitor Controllers

Noise Gates Atas Audio

Noise Gates

Preamplifiers Atas Audio

Preamplifiers

Signal Distribution Atas Audio

Signal Distribution

Studio Monitors Atas Audio

Studio Monitors

Channel Strips

Channel Strips

Saturation

Saturation

MPE Keyboards Atas Audio

MPE Keyboards

Mid Side Processing

Mid-Side Processing

Reverb Atas Audio

Analog Reverb

Drawmer

Telegrapher

Garbage Ideas

Z&H Designs

Mesanovic

IGS Audio

Expressive E

Looptrotter

HLabs