Marantz MODEL-2325 (1974–1977)

Marantz billed it as "more than a stereo receiver" - and it listed at $799.95 in 1975.

Overview

The 2325 is a 125-watts-per-channel receiver. High Fidelity (August 1975, p.44) opened its treatment of the unit with the line "more than a stereo receiver" and described a walnut-clad metal case measuring 19 5/16 inches across the front panel, 5 3/4 inches tall, and 15 3/16 inches deep, not counting the knobs and the cable off the back. It weighs 49.5 pounds. The original list price was $799.95, which in mid-1970s dollars was flagship money. The three-year parts-and-labor warranty suggests Marantz expected buyers to keep it a long while.

Most collectors quote the power figure first: 125 watts per channel into 8Ω. Holt Hill Audio describes it as "a very conservative power rating." That matches the period reputation. The 2325 was built to drive real speakers in real rooms, and owners report it does so without strain. Frequency response runs 20Hz to 20kHz, and the damping factor is rated at 70, which is respectable for a receiver of the era and helps explain why the low end stays controlled. Input sensitivity is listed at 1.8mV for moving-magnet phono and 180mV for line-level sources. Those are standard figures for the period, but they matter if you're pairing it with a modern high-output cartridge or a low-gain outboard phono stage.

Distortion specs are where the documentation gets slightly murky. Most sources list THD at 0.1%, but Holt Hill Audio and vintagehifiaudio.com cite 0.15% at full rated output. Either figure is inaudible in practice — this is a 1970s receiver, not a modern Class D amp, and nobody buys a 2325 for its THD number. The FM section, though, is where the 2325 earns its keep. The tuner uses a triple-tuned FET front end, and the design philosophy behind it is sound: FETs and ceramic filters don't age the way electrolytic capacitors do, so the tuner is often the part of a 2325 that still works properly after decades of neglect. High Fidelity (August 1975, p.44) rated the preamp section's performance as on par with the power amp, with excellent signal-to-noise figures at rated sensitivity, and noted that the built-in protection circuitry covered the whole section while also suppressing turn-on noise. That last point matters more than it sounds — a receiver that doesn't thump your speakers every time you power it up is a receiver you'll actually use.

The Dolby FM processor is the other headline feature. Dolby FM was a short-lived broadcast noise-reduction scheme, and by the time the 2325 was in production it was already on its way out. The section still works as a decoder for Dolby-encoded tapes, but it is more of a historical curiosity than a daily-use feature. Collectors note that the switching and the Dolby section are where restoration money goes, because those are the parts most likely to develop problems after forty-plus years.

Key Features

125 Watts Per Channel into 8Ω

The power rating is the spec that sold the 2325 in 1975. Holt Hill Audio calls it "very conservative," which is a polite way of saying the amp has headroom beyond what the number suggests. Owners report the 2325 drives inefficient speakers, the kind that make lesser receivers choke, without audible strain or compression. The damping factor of 70 contributes here. It's not spectacular by separate-component standards, but for a receiver it's solid, and it helps the amp keep control of woofer excursion at high volumes. Bookshelf speakers in a small room will never approach its limits. Large floorstanders in a big space are within its reach.

Triple-Tuned FET Front End

The front end of the FM tuner uses field-effect transistors in a triple-tuned configuration, which provides good selectivity and resistance to overload from strong local stations. The IF section uses ceramic filters, which are far more stable over time than the tuned coils and capacitors of earlier designs. So a 2325 with a dirty power supply and tired electrolytics can still pull in FM stations cleanly, because the tuner doesn't depend on the parts that degrade. Classic Receivers describes the FM performance as "excellent," citing a steep quieting curve, low distortion, and impressive figures for signal-to-noise ratio, capture ratio, and selectivity.

Dolby FM Processor

Built-In Protection Circuitry

High Fidelity (August 1975, p.44) noted that the 2325's protection circuitry covered the entire amplifier section and also suppressed turn-on noise. The thump of a cold power-up can be hard on speakers, and a protection circuit that mutes the output until the amp stabilizes is a real convenience. It's not a glamorous feature, but it's one reason the 2325 has a reputation for being safe to use with good speakers.

Walnut-Clad Metal Case

The 2325's case is metal with walnut veneer — a standard construction for high-end receivers of the period, but one that's held up well on surviving examples. At 19 5/16 inches wide, it's a full-width component, so you'll need a shelf or rack that can accommodate it. The 49.5-pound weight means you'll want help getting it into position — this is not a receiver you casually move around.

Historical Context

The 2325 was produced from 1974 to 1977, according to audio-exchange.com, Holt Hill Audio, and other sources. The original list price of $799.95 put it in direct competition with separates from other manufacturers, which is presumably why Marantz leaned so hard on the "more than a stereo receiver" pitch. The three-year warranty was unusually generous for the period and suggests confidence in the design.

Collectors who own both early Marantz tube gear and 1970s solid-state receivers often note that the 2325 feels like a continuation of the house sound rather than a departure from it - warm, slightly euphonic, and easy to listen to for long periods.

Collectibility & Value

The 2325 is desirable, but it's not rare. Marantz sold a lot of them, and they turn up regularly on the used market. Prices vary widely with condition and whether the unit has been serviced. A neglected 2325 with tired electrolytics and a noisy Dolby switch will sell for significantly less than a restored example.

Restoration costs are the wild card. A 2325 that hasn't been serviced in forty years will have tired electrolytics, and the switching and the Dolby section are where restoration money goes. The tuner section usually doesn't need much work, so the expensive repairs are concentrated in the amp and preamp sections.

Owners are passionate about these receivers. One long-term owner wrote that he'd owned his 2325 since new in 1976 and used it nearly every day for 37 years, adding that "there is very little on the market today, at virtually any price, that will give the pure warm sound of the 2325." Another reviewer gave it a 10 out of 10, praising its "clean, driving sound." User ratings on audiophile sites average around 4.8 out of 5. That kind of loyalty is common for high-end 1970s receivers, but the 2325 seems to inspire it more than most.

If you're buying one, prioritize units that have been recently serviced, or budget for a service if they haven't. Test the Dolby section and all the switches thoroughly. Check the tuner alignment. A misaligned tuner is a sign of neglect, and realignment requires test equipment that most hobbyists don't have. The service manual and owner's manual are both available online, but an original box and manual add to the collector appeal.

Similar items on eBay

No exact Marantz MODEL-2325 listings are live right now — these searches show current Marantz and similar vintage audio gear on eBay:

Search Marantz MODEL-2325 on eBay Browse Marantz audio gear on eBay

As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.