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TEAC UD-701N Network Audio Player/USB DAC/Headphone Amp/Preamplifier in Black


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  • Product Description

    CG-10M-A: Precision pulses breathe new life into Digital Audio. A new master clock generator for the Hi-Res era.

    New Reference OCXO – an Oven-controlled Crystal Oscillator
    Since temperature has a huge effect on accuracy of the crystal oscillator, minimizing temperature changes and maintaining it at an ideal level are extremely important in order to generate an accurate clock signal. The CG-10M-A employs an innovative oven-controlled crystal oscillator, the TEAC Reference OCXO to reduce oscillation frequency fluctuations caused by temperature changes.

    A class-leading ultra high-precision clock
    Thanks to the TEAC Reference OCXO, the CG-10M-A delivers an ultra high-precision 10MHz clock signal – within ±3 ppb of frequency temperature characteristics and within ±0.1 ppm of frequency precision – to USB DACs and digital players. A unique laser-engraved serial number and the TEAC Reference OCXO logo on every OCXC case is proof of the rigorous quality inspection undertaken during the manufacturing process.

    • ppm=10-6, ppb=10-9
    • Frequency temperature characteristics: A value of frequency fluctuation caused by temperature change
    • Frequency precision: An actual frequency range

    Four BNC clock output connectors
    Four gold-plated BNC connectors (50 ohms) are provided to deliver clock signals to multiple devices. Up to four devices that support a 10MHz input may be connected simultaneously, including USB DACs, network players and SA-CD players.

    Independent and isolated circuit design
    Each circuit in the CG-10M-A – from the power supply section to the buffer-amp at the output stage, – is completely isolated to prevent cross-interference when multiple devices are connected to the BNC connectors. By incorporating a buffer-amp into each circuit, no degradation of the signal waveform occurs when the generated clock signal is shared by several devices.

    Oven Status Gauge for clock stability monitoring

    The OVEN STATUS analogue gauge located in the middle of the unit, a TEAC trademark in recent years, shows the stability of the crystal oscillator when in use. As the temperature of the oven that contains the crystal oscillator reaches to the ideal temperature for accurate clock generation, power consumption of the oven decreases and the gauge points to zero, signaling to the user that the digital processing on the connected device is now controlled by an extremely accurate 10MHz clock signal. The gauge is a backlit-type with a dimmer control (including the ability to completely switch the backlight off).

    * The oscillator is usually stable about 2 minutes after the power is turned on. However, at least 10 minutes are necessary for the clock to reach an ideal condition.

    Toroidal-core power transformer
    A high-capacity, toroidal-core power transformer constantly supplies a constant, stable current that contributes greatly to the efficacy of the crucial clock generation and its subsequent high-precision output.

    Three-position, patented ‘Pin-Point’ feet for perfect stability

    The CG-10M-A employs TEAC's patented ‘Pin-Point’ feet. These ingeniously comprises two separated metal sections in a in an integrated housing. One is has a spiked top and is attached to the bottom of the chassis, the other is a basin-shaped base that hangs down from the spiked section with a flange-shaped cup to simply installation.

    Three ‘Pin-Point’ foot are used for support, two at the front and one at the rear, for excellent stability, even on an uneven floor. As a result, the three ‘Pin-Point’ feet help improve the accuracy of clock oscillation by minimizing vibrations and resonance. This, in turn, reduces mid and low frequency muddiness, improves the soundstage and enhances fine sound detail.

    A robust full-metal chassis, combined with an A4-size footprint
    Designed to match the successful Reference 500 series, the CG-10M-A features aluminum panels and a robust metal chassis (that also isolates it from electromagnetic noise) with a compact A4-size footprint that will fit anywhere.

    Features at a glance:

    • High-precision "TEAC Reference OCXO" – an ‘oven-controlled’ crystal oscillator
    • ±3 ppb frequency temperature characteristics
    • ±0.1 ppm frequency precision
    • 4 x 10MHz clock output connectors (gold-plated BNCs)
    • Completely independent and isolated circuit
    • High capacity toroidal-core power transformer
    • An iconic OVEN STATUS gauge for oscillation stability monitor
    • Dimmable backlight color matching with the Reference 505 amplifiers
    • Patent-registered ‘Pin-Point’ feet to minimize vibrations*
    • Three feet for the perfect support
    • Full-metal body to eliminate incoming electromagnetic noise
    • Detachable 3-pole IEC power socket
    • Compatible with TEAC UD-701N, UD-505-X, NT-505-X, UD-505, NT-505, UD-503 and NT-503
    • Compliant with RoHS

    Spec description

    Clock Outputs  
    Connectors BNC×4 (gold-plated)
    Output Sampling Frequency 10MHz
    Output Impedance 50Ω
    Output Level 0.5Vrms (sine wave)
    OCXO (Crystal Oscillator)  
    Clock stabilization time 2 minutes
    Frequency temperature characteristics within ± 3ppb (when shipped new)
    Frequency precision within ± 0.1ppm (when shipped new)
    US/Canada AC 120V, 60Hz
    UK/Europe AC 220-240V, 50Hz
    Power Consumption  
    warming up  
    US/Canada 15.4W
    UK/Europe 15.8W
    US/Canada 10.0W
    UK/Europe 10.8W
    Dimensions 290(W)×84.5(H)×248.7(D)mm /
    Weight 3.6kg / 7.9 lbs.
    Operating Temperature +5˚C to +35˚C
    Operating humidity range 5% to 85% (no condensation)
    Storage Temerature -20˚C to +55˚C
    Accessories Power cord, Pads×, Owner’s Manual (including Warranty Card)
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