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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