Denon DRA-1000 Service Manual
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Denon Service Manual
Specifications and Main Features
- Amplifier Section:
- Power Output (per channel): 90 watts RMS at 4 ohms frequency of 1 kHz
- Power Bandwidth: 10 Hz – 40 kHz (both 8 ohms at 0.15% T.H.D)
- Total Harmonic Distortion (THD): 0.03% (-3 dB at rated output, 8 Ω)
- Frequency response to input signal: PHONO RIAA Standard Curve
- MM 20 to 20 kHz + 0.5 dB
- CD and others 20 Hz to up 50 kHz to 1.5 dB (1 W)
- Input Sensitivity and Impedance:
- PHONO MM: 2.5 mV 47 kΩ
- CD, VIDEO, TAPE 1, TAPE 2: 150 mV 25 kΩ
- PHONO MM 120 mV – maximum input (1 kHz)
- S/N (signal to noise ratio) IHF-A measures:
- PHONO MM: 78 dB (5.0 mV input)
- CD, VIDEO, TAPE 1, TAPE 2: 98 dB
- Tone Controls:
- BASS: +10 dB @ 100 Hz
- TREBLE: +10 dB @ 10 kHz
- Effect of Loudness Control: Loudness at max position 50Hz/10KHz +10dB/+5dB
- Tuner Section:
- Receiving frequency Range (F.M): 87.50 MHz to 108.00 MHz
- Usable sensitivity: 0.9 micro volts or 10.3 dBf
- IHF-A measure: Ratio of signal to noise
- MONO: 82 dB
- STEREO: 78 dB
- Image rejection: 65 dB
- Selectivity at 300kHz: 55 dB
- Frequency Response: 30 Hz ~ 15 kHz ±2 dB
- Separation Tubes: Stereo Separation at One Kilo Cycle: 40 dB
- Amplitude modulation receiving range: 522 ~ 1611 kHz
- Minimum Usable Sensitivity: 18 µV
- Figures of Signal Ratio and Noise Ratio: 55 dB
- General:
- Power Supply: AC 230 V 50Hz
- Power Rating: 190 W
- Power Socket outlet - type : SWITCHED 100 W
- Dimensions in mm : 434 w x 134 h x 366 d
- Weighing about 8.5 kg
- The unit Remote Control System RC-174
- The unit Remote Control System Infrared pulse system: Remote Control System
- The unit Remote Control System 3 V DC 2 size AA(R6) dry cell batteries: power supplied
- External dimensions in mm of this unit are 60(W)175(H)18(D)
- Actual Weight of 120 g inc batteries global weight
Frequently Asked Questions
- What is the output power of DRA-1000 receiver?
- DRA-1000 attenuates the main output to 90 W and to 4 Amp in a 4 Ω continuous operation.
- What input makes the DRA-1000 highly efficient? What is angular frequency response for CD and tape inputs?
- For 1 W input, the frequency response for CD, VIDEO, TAPE 1, AND TAPE 2 are as under; 20 Hz to 50 KHz ±1.5dB
- Is the DRA-1000 operable through remote interface?
- Yes it does have a remote control unit RC-174 but it works through an infrared pulse system.
- How portable is the DRA-1000 in terms of weight and size?
- It has a size of 434 mm (W), 134 mm (H), 366 mm (D) and weighs 8.5 kg.
- How saturated is the input signal for PHONO MM?
- PHONO MM takes an input sensitivity of 2.5 mV with 47 kΩ impedance attached to it.
- Is the DRA-1000 an ideal model for noise reduction? What is the noise ratio across a DRA-1000?
- For PHONO MM this is 78 dB, while for devices such as the CD, VIDEO, TAPE 1, AND TAPE2 this amount increases to 98 dB on an IHF-A scale.
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