Denon DRA-375RD, DRA-275RD, DRA-275R Service Manual
Specifications and Main Features
- Model: DRA-375RD / DRA-275RD / DRA-275R
- Continuous Power Output:
- DRA-375RD: It can deliver at least 60 watts in 8 ohm load per channel
- DRA-275R: It can deliver at least 40 watts in 8 ohm load per channel.
- Power Bandwidth: The bandwidth ranges from 10Hz to 40KHz with a total harmonic distortion of around 0.15 percent during rated output of 8 ohms.
- Total Harmonic Distortion: The rated output of the device is 0.03 percent with the impedance of around 8 ohms.
- Frequency Response:
- Preamplifier: The standard RIAA response range is 20Hz to 20 KHz with +0.5 decibel recording output preamplifier.
- CD, VIDEO: The frequency ranges from 20 Hz to 50 kHz with an output of +1.5 decibel.
- Input Sensitivity and Impedance:
- PHONO MM: The input sensitivity and impedance is 2.5 mV at 47 k ohm.
- CD, VIDEO: The sensitivity increases to 150 mV at 47 k ohm.
- Signal to Noise Ratio:
- PHONO MM: 78 db noise ratio should be obtained when input power is 5.0 mV.
- CD, VIDEO: The expected noise ratio during the use of CD and video is around 95 db.
- Tone Controls:
- BASS: Tone control for bass is expected to be around +10 dB at 100Hz frequency.
- TREBLE: Tone control for treble is set to be around +10 dB at frequency of 10k Hz.
- Loudness Control: It is set around 50hZ or 10kHz to achieve the target output of +10dB or +5dB.
- Tuner Section: The tuner receives the signals from FM range which is between 87.50 to 108.00 megahertz and AM range of 520 to 1710 kilohertz.
- Power Supply: Standard power supply used is AC 120V 60Hz.
- Power Consumption:
- DRA-375RD: Expected consumption power is <2.6A.
- DRA-275R: Expected consumption power is <2.3A.
- Dimensions: The dimension details are 434 mm for width, 142 mm for height and 315 mm depth.
- Weight:
- DRA-375RD: 6.6 kg (14 lbs 9 oz)
- DRA-275R: 5.8 kg (12 lbs 13 oz)
- Remote Control:
- Model: RC-812
- Power Supply: 3V DC (Two size “AA” dry cell batteries)
- Weight: 120 g (includes batteries)
Frequently Asked Questions
- Q: What is the power output of the DRA-375RD and DRA-275R?
A: DRA-375RD has a power output of 60 watts per channel, whereas DRA-275R supplies 40 watts per channel.
- Q: Are multiple speakers able to be connected?
A: Yes. The receiver allows connection of two pairs of speakers (A and B) to it.
- Q: Receiver inputs, what are the types?
A: The inputs available to the receiver include Phono, CD, Tuner,, video and Tape deck.
- Q: In the FM band, what is the frequency range?
A: The FM reception range is between 87.50 MHz and 108.00 MHz.
- Q: Bass and Treble how is this done.
A: Treble and bass can be controlled via the tone controls +10 db cut or boost at various frequencies to change the level.
- Q: There is, a remote control, is there not?
A: The DRA-375RD/275R has an RC-812 remote control with it for example.
- Q: What is the weight of the receiver?
A: The DRA-275R is a 5.8 kg receiver, while the DRA-375RD has a weight of 6.6 kg.
- Q: What should I do in case I experience no sound?2
A: First of all, examine the speaker connections and the input you used, examine if the switches on the speakers are turned on, and make sure the function buttons have been correctly set.
User Manual
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