Denon DRA-625R, DRA-425R Service Manual
Specifications and Main Features
- Model: DRA-625R/DRA-425R
- Continuous Power Output:
- DRA-625R: 90 W + 90 W (4 ohm, 1kHz, T.H.D 1%)
- DRA-425R: 70 W + 70 W (4 ohm, 1kHz, T.H.D 1%)
- Power Bandwidth
- DRA-625R: 5 Hz – 40 kHz, T.H.D 0.05% (8 ohm driven)
- DRA-425R: 20 Hz – 20 kHz, T.H.D 0.05%
- Total Harmonic Distortion T.H.D:
- DRA-625R: 0.093%
- DRA-425R: 0.01%
- Frequency Response:
- PHONO: RIAA Standard Curve of Gain 0.5 dB 20 Hz to 20 k Hz
- TAPE-1/2, CD, AUX/VIDEO: Gain of 1.5 dB 20 Hz to 50 kHz
- Input Sensitivity and Impedance
- PHONO MM: 2.5 mV 47 k Ohms
- TAPE-1/2, CD, AUX/VIDEO: 150 mV 29 k Ohms
- Tone Controls: Bass +8 dB with 100hz, Treble +8 dB with 10khz, Variable Loudness +10 dB/+5 dB
- Signal to Noise Ratio
- PHONO MM: 86db at 5.0 mV input
- TAPE-1/2, CD, AUX/VIDEO: 95db
- FM Tuner Receiving Frequency, range 87.5 – 108 MHz
- AM Tuner: Receiving Range For AM 522 – 1611 KHz
- Supply: AC 220V, 240V for 50 Hz
- Consumption
- DRA-625R: 170w
- DRA-425R: 140w
- Specifications include: W: 434 mm which is equal to 17-3/32 inches; H: 140 mm which is equal to 5-1/2 inches; D: 350 mm which is equal to 13-25/32 inches.
- The following are the weights: DRA-625R: 7.4 kg (16 lbs 5 oz) and DRA-425R: 7.3 kg (16 lbs 1 oz)
- This remote control unit comes with infrared pulse system RC-111.
- Two size RO3 (AAA) dry cell batteries are used in this remote control unit with power supply of 3V DC.
- The external dimensions of the remote control are 60 mm (2-23/64 inches) in width,165 mm (6-31/64 inches) in height and 16 mm in depth.
- The weight of the remote control is 80 g which is approximately equal to 2 oz.
Frequently Asked Questions
Q: What type of speakers can I connect to the DRA-625R/DRA-425R?
A: To the speaker terminals, you are able to attach two pairs of speakers (A and B) at this point.
Q: I already have a remote control, does the receiver also come with one?
A: The remote control unit RC-111 is included in this model as well.
Q: Can I enquire about the power output specifications that are provided by this receiver?
A: The DRA-625R is capable of providing 90 W + 90 W at 4 ohms while for DRA-425R 70 W + 70 W at 4 ohms is the output.
Q: How do I attach the antenna?
A: For attaching an FM antenna, use the coaxial cable with a 75 Ohm terminal and plug it into the FM ANT terminal while the AM antenna can be connected using the AM loop antenna and attached to the AM ANT connectors.
Q: If the power is turned off, are the settings preserved?
A: Yes, to answer the question, the last used channel is stored in memory modules for around one month. Even if the tuner has been switched off, the main memory was built with a last channel memory module and is able to keep the state for up to a month.
Q: Are there options to connect other input sources such as a CD player or even a turntable?
A: The multiple input devices such as PHONO (turntable), CD, TUNER (radio), and AUX/VIDEO are supported by DRA-625R/DRA-425R embedded.
User Manual
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