MAGNETIC CARTRIGE INPUT Input sensitivity impedance: 2.5 mV/47kOhms Accuracy of frequency responce to IEC RIAA: 0.5 dB Signal to noise ratio [IHF A weighted]: 86 dB
TUNER/CD/AUX/TAPE INPUTS Input sensivity impedance: 150 mV/33kOhms Signal to noise ratio [A weighted]: 96 dB Frequency response [-3 dB limits]: 5Hz - 70 kHz Tone characteristic [100 Hz and 10 kHz]: +/- 6 dB Channel separation [1 kHz/10 kHz]:>85/65 dB
GENERAL Power requirements /02 and /00, /05 versions: 220/240V AC, 50/60 Hz /01 versions [4 voltages]: 110/120/220/240V AC, 50/60 Hz
CONTROLS: Power switch, headphones socket, bass and treble tone controls [+/- 6 dB], source direct switch, input selector [phono, CD, tuner, aux], tape 1/tape 2 switches, balance control, volume control. Phono and CD inputs are gold plated.
After 20 years lying on the basement I took it off and plug it. What a surprise! Very neutral. I first put a piano CD and hear the pianist breathing (never before I achieved that - that's Hi-Fi!). after that Katy Perry, very contained and comfortable. Sometimes new is not better...
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"Marantz PM-30 review"
25th July 2011
The PM-30 Stereo Integrated Amplifier was, in the early 90's, the entrance model of Marantz range. It was a beautifully designed amplifier and revealed high quality construction for it's price category [it has copper screws attaching the cover to the chassis and gold plated phono and CD inputs, for instance]. This may be one of the reasons why this model was an high reliability hi-fi component [mine is still flawless after 21 years of daily use].
In terms of performance, the PM-30 was one of the most neutral low budget amplifiers you could buy at that time and revealed few drawbacks - the main being a little lack of low-end projection, although it´s bass lines always sounded controlled and natural. You can listen to this amplifier for hours without being tired: it will always sound clear, focused and neutral.
There was also an improved quality amplifier based on the PM-30 chassis - dubbed 'Special Edition', - tuned by Ken Ishiwatta and distinguished by specific logo, the lack of bass and treble controls and enriched with heavy side dark grey panels, added to increase stability to the unit. I guess there were also improved quality components inside.