Question about Sony str-4800sd stereo receiver with manual
The Sony STR-5800 is listed as 55 Watts per channel into 8 ohms, so I presume the same vintage STR-4800 would be 35 Watts per channel into 8 ohms (x4 channels = 140 Watts). Most home audio speakers have 8 Ohm impedance.
The STR-5800 specs list 4 Ohm to 16 Ohm speaker capability, but I don't see any corresponding specs for the STR-4800. Be careful, if trying to drive 4 Ohm (car) speakers, this may possibly burn out the STR-4800 if it isn't built to drive the lower impedance speaker.
Posted on Jun 19, 2014
I can see why you're asking for help on this. It almost seem this unit has been 'disappeared' as far as online information is concerned. Even Sony has nothing on it.
I founs some articles and For Sale posts:
"Sony's STR-4800SD receiver was extensively, and positively, reviewed in Stereo magazine's Fall '77 issue. In their introduction, they found the 4800SD bettered its published f.m. sensitivity specs "by a wide margin...it has exceptionally smooth frequency response, very low distortion(especially in the midband), and excellent quieting. No exotic claims are made for the power amp section, either (35 watts/channel,15.4 dBw at 0.2% THD). But our tests indicate much more capability than that, and a distortion of only one-tenth that spec."
The power consumption figure shown in a photo below says "145W", which would be consistent with a 35 watt amplifier.
Posted on Jan 03, 2011
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Posted on Jan 02, 2017
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