Denon PMA-520, PMA-720 Service Manual 2
Specifications and Main Features
Capabilities and functions overview
- Device type: PMA-720/PMA-520
- Speaker impedance:
- PMA-720: Minimum 4 ohm to maximum 16 ohms for a single pair. Minimum 8 ohm to maximum 16 ohm when using A and B terminal for both.
- PMA-520: Minimum 6 ohm to maximum 16 ohm for a single pair. Minimum 14 ohm to maximum 16 ohm when using A and B terminal for both.
- Output rating:
- PMA-720: 80W + 80W with a T.H.D of 0.01% at eight ohms rating.
- PMA-520: 70 W + 70 W with 0.015 at a frequency of 8 Ohms.
- Sensitivity ratings:
- Sensitivity Input:
- PHONO: 2.5 mV 47 KOHM MM / 200 µ v100 Ohm MC/PHONO
- CD, TUNER, AUX 1, AUX 2: 150 mV / 47 kOhm.
- Frequency Range:
- PHONOMM: From 20Hz to 50 KHz.
- PHONOMC: From 20Hz to 50 KHz.
- Cd, Tuner, AUX-1and 2: From 20Hz to 50 KHz.
- Noise ratio:
- - Fono MM: 88dB with a 5 mV input
- Fono MC: 68dB with a 0.5 mV input
- Cd, tunder, AUX1, AUX2: 105 dB.
- Supply Power: The device supports AC 220V or AC240V.
- Consumption of Power: PMA-720 :It consumes 250 watt for IEC
- PMA520 :It consumes 180watt for IEC.
- Size: 434 x 142 x 343mm which can be converted to 17-3/32” x x5-43/64” x 13- ½’.
- Weight:
- PMA-720: 8.2 kg (18 lbs 2 oz)
- PMA-520: 7.4 kg (16 lbs 5 oz)- Additional FeaturesRegional Specifications:
- Tone Control: Deep Mid Bass & Mid Treble control.
- Loudness Control: On/Off
- Input Selector: CD, PHONO, TUNER, AUX-1 ,AUX-2
- Headphone Jack: 1/4“ standard…
Frequently Asked Questions
Q: What is the Point of the PMA-720/520 Device?
A: The PMA-720/520 works as a stereo preamplifier that enables users to increase their audio signals before they hand it over to their main amplifier.
Q: What type of speakers work with PMA-720/520?
A: The device accepts speaker impedance of 4 to 16 Ohms for PMA-720 and 6 to 16 Ohms for PMA-520.
Q: Can I Use both Pairs A and B of speakers at once? Then why having these speaker pairs on my stereo?
A: Yes, however both pairs of speakers must not go below an 8 Ohm combined loading for the PMA-720, and 12 Ohms for the PMA-520.
Q: What is PMA-720’s maximum output power?
A: The maximum output power is 80W for each channel with an 8 Ohm load.
Q: And Is there such an equalizer inbuilt in the PMA 720/520?
A: The PMA-720 assists users with tone control functions, although in built equalizers are not particularly featured.
Q: What are some practical measures to avoid distortion if I set the volume to high?
A: Firstly, check the impedance of the speakers and make sure they are accurate. Secondly, check the connectors and the audio source for distortion.
User Manual
Loading...