The Marantz model 2330 features a sensitive FM tuner, a highly selective AM tuner, a low distortion preamplifier and two direct coupled power amplifiers on a single chassis, while retaining a flexibility comparable to that achieved using separate components. Specifications. 2330;. Hey Tom, that was the 2330 we were talking about. Not the 2230. I see I'll have to keep an eye on those caps - "now was that a 10v or a 100v" - wink wink! From a preliminary view it seems they both used the same amp section. The preamp in the 2330 used an opamp over discretes in the B. And it looks like the 2330 had better buffering and tune.
This 2330 sounds differently while comparing with my fully serviced 2285B and my collection of other Marantz receivers. It has overly boosted midrange. Whenever I turn the volumn pot to 9:30 or over, the very bright midrange is like a knife strongly stabing through my eardrum.:tears: Needless to say, the listening becomes painful when violin.. Data. General. Manufacturer: Marantz Model: 2330; Type: Receiver; Years of manufacture: 1977 - 1980; Made in: Japan; Color: Silver; Remote control: no; Power.