The Power of 1-Bit Precision

The TOPPING D90 III Discrete is no ordinary DAC. Whether you’re an audiophile seeking perfection, a professional in need of studio-grade accuracy, or just someone who values incredible sound quality, this DAC takes decoding to another level. At its core is a fully discrete 1-bit DAC architecture.

What is a 1-bit DAC and why does it matter?

Unlike traditional multi-bit DACs that process larger chunks of audio data (and often introduce quantization errors in the process), the 1-bit DAC handles audio one bit at a time. This design drastically reduces distortion, giving you an incredibly clean and pure sound.

PSRM: The Perfect Partner for 1-Bit Processing

A 1-bit DAC is only as good as the environment it works in, and that’s where the TOPPING Phase-Switching Reference Modulator (PSRM) comes in. The PSRM ensures the 1-bit DAC operates with a stable, noise-free voltage reference. This is critical because even the smallest voltage fluctuation can introduce distortion or noise into the signal. By keeping everything smooth and steady, the PSRM allows the 1-bit DAC to perform at its absolute best.

Product highlights

• Fully discrete 1-bit PSRM DAC architecture
• 16-phase modules for left and right channels
• Ultra-low jitter (-157dB)
• THD+N < 0.00006%
• SNR 131dB @1kHz
• 10-band PEQ for sound customization
• LDAC Bluetooth 5.1 support for high-res wireless audio
• Supports PCM768kHz/32bit, DSD512
• RCA and XLR balanced outputs with selectable output levels
• IIS interface for high-spec digital input
• Preamp mode for direct connection to active speakers
• 12V trigger for power synchronization

Read about all of these features on the product page , and if you need more information please contact our dedicated Support Team via live chat online or email us at support@apos.audio.

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