TempoTec Audio
USB DAC headphone amplifier
4*CS43198 DAC Chip | FILTER, EQ, GAIN | 325mW+325mW (4.4mm Balanced Output)
FDAS | PCM 768kHz/32Bit | DSD 512
Model |  Sonata BHD PRO |  Sonata BHD ULTRA |
SNR | 131dB | 131dB |
Output Voltage (4.4mm Balanced Output) | 4Vrms | 4Vrms |
Output Voltage (3.5mm Single- Ended Output) | 2Vrms | 2Vrms |
THD+N (Total Harmonic Distortion + Noise) | 0.00021% | 0.00016% |
Output Impedance | 0.2Ω | 0.2Ω |
Stereo Separation | -127dB | -127dB |
Frequency Response Range | 0-40kHz | 0-40kHz |
Output Power (High Gain Mode, 4.4mm Balanced Output) | 280mW+280mW | 325mW+325mW |
Output Power (High Gain Mode, 3.5mmSingle-Ended Output) | 125mW+125mW | 125mW+125mW |
Output Power(Low Gain Mode, 4.4mm Balanced Output) | 125mW+125mW | 125mW+125mW |
Output Power(Low Gain Mode,3.5mm Single-Ended Output) | 31mW+31mW | 31mW+31mW |
Each signal branch (L+ / L− / R+ / R−) gets its own full-spec DAC. Four chips, single-channel, fully driven — pushing dynamic range and channel separation to the physical limit.
A vocalist may re-record a single breath fifty times. Musicians practice until their fingertips harden, just to align drum hits and bass notes perfectly. All their emotion lies within timing refined down to the microsecond. This is why TempoTec pours relentless effort into FDAS technology.
Jitter blocked: FIFO asynchronous buffering isolates noise from phones and computers.
Dual precision oscillators: a strict metronome that locks every note precisely in time.
Some products on the market generate the negative signal artificially by flipping the phase via a single DAC chip and analog circuitry.It is like reflecting light with a crude mirror. It creates the form of balanced output, yet signal conflicts happen internally. That explains why certain devices boast high power output, but sound muddled. They fail to deliver a wide soundstage and introduce listening fatigue.
When you're listening to a large‑scale symphony or an intricate folk ensemble, the true‑balanced, multi‑chip architecture delivers two immediate benefits:
1.The violin stays front‑left, the guzheng remains back‑right — with a palpable sense of air between them, never blurred together.
2. Instrument placement is no longer a vague, left‑right guessing game. Instead, it's precisely locked in place, as if metronomically anchored to its own coordinate.
We take care of the engineering. Your body takes care of the rest.
When every instrument has its own space, your brain no longer struggles to decode a chaotic soundstage — and the tension naturally melts away.
TempoTec's multi-chip true-balanced differential architecture delivers astonishing efficiency. Every milliwatt counts — and the 4.4mm balanced output delivers massive, effortless power, even for high-impedance over-ear headphones.
What does underpowered audio sound like? Thin, compressed sound with a cramped soundstage, and harsh bass resembling tapping on a plastic basin. This unnatural sound puts subconscious strain on your brain while listening, leaving you fatigued over time.
Music’s sonic framework expands fully, rendering distinct space between instruments. In symphonies, cellos deliver warm, profound bass extension, while violin treble flows silky and free of harshness.
Backed by ample power, paired with precise clocking from FPGA and dual crystal oscillators, music is no longer a chaotic blast of sound.
Once you put on your headphones, even notoriously hard-to-drive models reveal pure, unaltered live realism. Shoulders tense from a long day ease away, and your body sways gently to the music. This driving power exists for moments just like this — pure relaxation.
Direct control via standalone color screen lets you freely adjust the underlying digital filter. Tweak EQ, FILTER and GAIN settings with ease.
Crafted with pure silver-plated single-crystal copper and Faraday cage aluminum shielding to eliminate signal loss and unlock authentic sound.
Optimized for OTG core signals. Its flexible, lightweight build reduces downward strain on your phone’s Type‑C port.
Native support for 32Bit/768kHz & DSD512.
Plug-and-play, stable and reliable. Effortlessly handles portable use, desktop HiFi, gaming and media playback, greatly boosting convenience and versatility.
Disclaimer: Accessory specifications are subject to batch & production tweaks. Please refer to the physical item.
