Powerful amplifier with practically distortio-free performance.
PMA-500V features:
Denon's Non-NFB amplifier for extremely pure, high-speed amplification thanks to complete separation of the power amplifier stage into voltage amp and power amp
Pure Current Supply circuit with Denon's original bridged block capacitors suppress dynamic IM dustrotion by 60 dB
7 sets of audio input terminals
Electronic switches and ideal chassis construction eliminate external noise
Super Equalizer with range response
Independent subsonic filter switch provided for record playback with ann MC or MM cartridge
Non-NFB Power Amplification - Striking Power with Digital Sources
The PMA-500V includes Denon's original Non-NFB amplifier for extremely pure, high speed amplification. By completely separating the power amplification stage into voltage amplification and power amplification stages,, the influence of counter-electromotive force from the speakers is eliminated. As a result , iy has been possible to reduce all types of distortion to nearly zero, including dynamic distortion such as tim, to obtain high quality amplification.. In addition, the PMA-500V uses large capacity (Pc 100W) high speed transistors for high current drive, providing at the same time both the sharp, clear sound characteristics of Non-NFB amplification, and a high slew rate of ±150 V/µsec
"Pure Current Supply" Decreases Dynamic IM Distrtion by 60 dB
The PMA-500V also incorporates a large size heat sink, a multiple shielded large transformer, and capacitors for large scale capacity (27,000 µF total). The result is a stable power supply with high dynamic power and strength even for the ultra-low frequencies. Additionally, the "Pure Current Supply" circuit with Denon's own bridged block capacitor system suppresses dynamic IM distortion greatly for improved sound quality
Electronic Switches and Ideal Chassis Construction Eliminate External Noise
In order to eliminate the influence of magnetic and electrical noise, the chassis construction divides the power supply section and main signal circuitry at the heat sink, thus markedly reducing mutual interferences. In addition, electronic switches are used for the input selectors, reducing wiring and resulting in an ideal layout to make signal paths simple
Newly Developed Subsonic Filter and Super Equalizer
An ezcellent subsonic curve is achieved (16 Hz; -12 dB/oct) for both Mc and MM playback. An independent switch is provided for tuning each subsonic filter and phono equalizer on and off. Working together with the wide-range 920 Hz - 50 kHz ±0,3 dB, MC). Super Equalizer, optimum conditions are ensured for refined analog disc reproduction
Additional Features:
Two sets of Video Inputs
A rotary speaker selection switch
Real-time tone control with no reduction in sound quality
Specifications:
Power Amplifier Section
Rated Output Power (both channel driven): 80 W per channel min. RMS into 8 Ω from 20 Hz to 20 kHz with no more than 0,05% T.H.D.
80 W + 80 W (8 Ω, 20 Hz - 20 kHz)
130 W + 130 W (4 Ω, 1 kHz DIN 1% T.H.D.)
Dynamic Power:
150 W + 150 W (4 Ω)
160 W + 160 W (2 Ω)
Total Harmonic Distortion: 0,007% (-3 dB at rated output, 8 Ω)
Intermodulation Distortion: 0,003% (60 Hz / 7 kHz : 4 / 1 at rated output, 8 Ω)
Power Bandwidth: 5 Hz - 80 kHz (8 Ω, T.H.D. 0,07%)
Frequency Response: 4 Hz - 150 kHz (at 1 W)
Output Impedance: 0,1 Ω (1 kHz)
Slew RaTe: ±150 V/ µsec
Preamplifier Section
Input Sensitivity/Impedance
Phono MC : 0,2 mV/100 Ω
Phono MM : 2,5 mV/47 k Ω (190 PF)
Aux/Video-1, Aux/Video-2, CD, Tuner, Tape -1, -2 : 150 mV/30 k Ω
Max. Input/Level:
Phono MC : 12 mV/ 1khz
Phono MM : 160 mV/1 kHz
Max. Output /Rated Output: 10 V/150 mV
RIAA Deviation: 20 Hz - 50 kHz ±0,3 dB (MC)
Total Harmonic Distortion: 0,002%(1 kHz, 8 V output)
Signal-to-Noise Ratio:
Phono MC : 68 dB (at 0,5 mV input)
Phono MM : 88 dB (at 5 mV input)
Aux/Video-1, Aux/Video-2, CD, Tuner, Tape -1, -2 : 105 dB
Tone Control:
Bass : ±8 dB at 100 Hz
Treble : ±8 dB at 10 kHz
Loudness Control:
Low : ±7 dB at 100 Hz
High : ±6 dB at 10 kHz
Subsonic Filters: 16 Hz -12 dB/oct
General
Power Supply: AC 120 V 60 Hz, AC 220 - 240 V 50/60 Hz
Power Consumption: 170 W
Dimensions (W x H x D): 434 x 372 x 385 mm
Weight: 9,4 kg
No comments:
Post a Comment