Cayin RU7 DAC
The Cayin RU7 is a ultra-portable USB DAC/Amp dongle featuring a unique, discrete 1-bit R2R ladder DAC architecture for high-resolution audio, providing powerful, balanced 4.4mm and single-ended 3.5mm outputs, low power consumption with an OLED screen, ideal for upgrading smartphone and computer audio. Get this amazing DAC now from the official dealer of Cayin in Bangladesh, Gears for Ears today with an official 1 year warranty.
Fully Balanced Resistor Networks Discrete 1-Bit DAC for DSD Format
Purposively designed micro-miniaturized 1-bit DAC circuit from discrete components convert digital signal to analogue signal through a fully differentiate 4-ch DAC architecture
The 1-Bit DAC circuit is a resistor network composed of 128 pcs (4 x32) high precision thin Film Resistors, this is closely resemble to the discrete DAC of our N7 DAP
The output of the resistor network will go through a 3-level active LPF and then converted to single-ended signal for volume adjustment.
High Power Paraller Phone Amplifiers
Dual amplifiers in parallel, providing 4-CH high power balanced Driven output
The second phone amplifier is a parallel unity gain inverting phase amplifier
An impressive upgrade in
phone output power :
3.5mm SE, 160mW @32Ω
4.4mm BAL, 400mW @32Ω
Shared Line Out Conveniently Connected
The shared line out function will configure the 3.5mm or 4.4mm phone output into fixed voltage output (bypassing volume control): 3.5mm Single-ended, 1.2Vrms 4.4mm Balanced, 2.4Vrms
The line out voltage are carefully selected to retain as much details and dynamic of the 1-Bit DAC with minimum noise and distortion.
Enable you to connect the RU7 to portable/desktop amplifier or home audio system and used it as an miniature 1-Bit DAC.
Spcifications
General Product Information
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DAC: Fully Balanced Resistor Networks / Discrete 1-Bit DSD DAC
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Digital Decoding: * PCM: 44.1kHz to 384kHz
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DSD: DSD64/128/256 (Native)
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All-to-DSD: User selectable DSD64/128/256
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USB Input: USB Type-C Audio Input
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Outputs: * 3.5mm Single-ended (Shared Phone/Line Out)
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4.4mm Balanced (Shared Phone/Line Out)
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Display: 0.96 inch 128x64 OLED
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Build & Design: CNC Aluminum chassis, ~25g net weight
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Dimensions: 66mm x 24mm x 12mm
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Accessories: USB C to C cable (shielded), USB A to C adapter, and a bundled leather case.
Headphone Output (Phone Out)
| Feature | 3.5mm Single-Ended | 4.4mm Balanced |
| Power Rating | 160mW @32Ω | 400mW @32Ω |
| Freq. Response | 20Hz–42kHz (±0.5dB) | 20Hz–42kHz (±0.5dB) |
| THD+N | 0.006% (1kHz, 1.0V) | 0.006% (1kHz, 1.4V) |
| Dynamic Range | 115dB (A-Weighted) | 115dB (A-Weighted) |
| SNR | 114dB (A-Weighted) | 112dB (A-Weighted) |
| Channel Separation | 76dB (1kHz) | 92dB (1kHz) |
| Output Impedance | 0.5Ω | 1.0Ω |
Line Output
| Feature | 3.5mm Single-Ended | 4.4mm Balanced |
| Output Level | 1.2Vrms (Fixed, 1kHz@10kΩ) | 2.4Vrms (Fixed, 1kHz@10kΩ) |
| THD+N | 0.02% (1kHz) | 0.02% (1kHz) |
| Dynamic Range | 114dB (A-Weighted) | 114dB (A-Weighted) |
| SNR | 113dB (A-Weighted) | 112dB (A-Weighted) |
| Channel Separation | 100dB (1kHz) | 102dB (1kHz) |
| Output Impedance | 0.5Ω | 1.0Ω |