Denon PMA-520, PMA-720 Service Manual 1
Specifications and Main Features
PMA-720 Technical Parameters:
- Rated Output Power: 135W + 135W(8 Ohm), 180W + 180W(4 Ohm)
- Total Harmonic Distortion (THD): 0.01% (DIN, 1kHz)
- Frequency Bandwidth: 20 Hz – 50 kHz
- Input Sensitivity:
- Phono MM: 2.5 mV / 47 kOhm
- Phono MC: 200 µV / 100 Ohm
- CD: 150 mV / 47 kOhm
- AUX-1: 150 mV / 47 kOhm
- AUX-2: 150 mV / 47 kOhm
- Signal-to-Noise Ratio: 88 dB (MM), 68 dB (MC)
- Dimensions: 434 x 142 x 343 mm
- Weight: 8.2 kg
PMA-520 Technical Parameters:
- Rated Output Power: 70W + 70W (8 Ohm), 90W + 90W(6 Ohm)
- Total Harmonic Distortion (THD): 0.015% (DIN, 1kHz)
- Frequency Bandwidth: 20 Hz – 50 kHz
- Input Sensitivity:
- Phono MM: 2.5 mV/47k Ohm
- Phono MC: 200 µV / 100 Ohm
- CD: 150 mV / 47 kOhm
- AUX-1: 150 mV / 47 kOhm
- AUX-2: 150 mV / 47 kOhm
- Signal-to-Noise Ratio: 88 dB (MM), 68 dB (MC)
- Dimensions: 434 x 140 x 343 mm
- Weight: 7.4 kg
Key Features:
- Input Selector: Cd, Phono, Tuner, AUX-1, AUX-2.
- Loudness Control
- Tone Control (Bass, Treble )
- Balance Control,
- Subsonic Filter and,
- Tape Monitor Function
- Outputs for Headphones
- Options for Speaker Impedance
- High End Signal Engineering Advances
Frequently Asked Questions
Q: What’s the maximum output power for the device PMA – 720?
A: If the speaker load is 8 ohms, then it will output an amplifier power of 135W per channel. If the speaker load is 4 ohms, then it will output an amplifier power of 180W per channel.
Q: What are the supported inputs for a PMA-720?
A: Supported inputs for a PMA-720 are CD, Phono (MM, MC), Tuner, AUX-1 and AUX-2.
Q: Is there a headphone output support on the PMA-520?
A: Certainly,, the PMA-520 has a support for a headphone output.
Q: In a range between what numbers does the SNR for PMA-720 lie?
A: Phono MM has an SNR of 88dB and MM has 68dB.
Q: Is it possible to connect PMA series amplifiers with different impedance speakers?
A: Yes, but you must ensure that the impedance ratings comply with the recommendations in the manual to avoid operational issues.
Q: Is there any tone control option on PMA-520?
A: Surely, PMA-520 comes with Bass and Treble controls.
User Manual
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