Aiwa CS-250 (1983)

A four-band boombox from the golden age of portable stereo. Compact, colorful, and fitted with Aiwa's DSL circuit.

Overview

The Aiwa CS-250 is a 1980s boombox. The full name is 4 Band Stereo Radio Cassette Recorder Stereo 250 CS-250 E/Z/K. It came out in 1983 and gave you radio, recording and battery power in one package. Aiwa Co. Ltd. built it in Tokyo, and it sold for 290.00 DM, which put it in the mid-tier of portable audio with a feature set that punched above its price.

Unlike the modular tuners Aiwa made for home systems, the CS-250 was built for the street. It has a plastic body, two speakers, a cassette deck, four radio bands, and the usual boombox profile - wide and slightly hunched. It came in black or white. Six D-cell batteries power it, so you don't need a wall outlet.

It's not a high-fidelity machine in the audiophile sense, but owners consistently call it a "great little unit" and a "sweet looker," and they praise its "good sound" for the era.

Specifications

Key Features

Four-Band Radio: Global Reach in a Box

The CS-250 has four bands: FM (labeled UKW), Short Wave (KW), Medium Wave (MW), and Long Wave (LW). That covers local pop stations, international shortwave broadcasts, and regional AM signals. Coverage is LW from 150 to 285 kHz, MW from 530 to 1605 kHz, KW from 5.9 to 18 MHz, and FM from 87.5 to 108 MHz. That was a real step up from basic two-band portables.

Dynamic Super Loudness (DSL): Aiwa’s Secret Sauce

One standout feature is Aiwa's Dynamic Super Loudness (DSL), a bass and treble enhancement circuit meant to make small speakers sound bigger, especially at lower volumes. A dedicated "DSL button" turns it on. One owner on a forum said, "I prefer the DSL button on your 250" when comparing it to a CS-360. It isn't high-end equalization. It just pumps up thin cassette tapes and weak radio signals.

Integrated Two-Way Speakers: Loud, Not Detachable

Some period advertising suggests otherwise, but the CS-250 does not have detachable speakers. They are built into a one-piece box, with four drivers in a two-way configuration: two 10 cm woofers and two 2 cm tweeters. The speaker diameter is 12 cm (4.7 inch) and output is 7 W. That sounds modest, but it can fill a small room or an outdoor spot.

Tape Deck with Metal Compatibility

The cassette deck has a wow and flutter rating of just 0.08%. Frequency response reaches up to 15 kHz with Metal tape. It records as well as plays, so you can tape off the radio or dub from another source. It also has an "aux in," which was a rare feature for a machine of this era. You can plug in a Walkman, a turntable (with preamp), or later, an MP3 player.

Portable by Design, Built for Batteries

The CS-250 weighs 3.2 kg (just over 7 pounds). That's hefty for handheld use but fine as a shoulder-carried boombox. Its shape is wide, low and slightly angled, and it fits the "portable set > 8 inch" category. Power comes from AC (voltage variants E, Z, or K for different regions) or six D-cell batteries. The plastic construction keeps weight down and cost manageable, though it doesn't feel luxurious.

Collectibility & Value

The Aiwa CS-250 isn't a blue-chip collector's item, but it has a loyal following among boombox enthusiasts and 1980s audio nostalgists. Owners describe it as a "nice wee mini," a "nice looking box," and a "great little unit."

One known listing on Bazos Czechia priced a CS-250 at CZK 1,300 in February 2026, suggesting modest but steady demand in European markets. Condition matters: a working unit with a functional tape deck will always command more than a silent display piece. The tape mechanism is the weak point. Forum users report the "tape deck not working" as a common issue, and one noted that theirs had been "fixed." Belt replacement and head cleaning are likely part of any restoration.

There's no data on common electronic failures beyond the tape deck, and no detailed service notes on capacitor aging or speaker degradation. But given its 18-semiconductor, superheterodyne design, it's probably more reliable than complex all-in-one units from the late '80s.

Market Value

┌──────────────────────────────────────────────────────────────────────────┐
│ AIWA CS-250                                                     Apr 2026 │
├──────────────────────────────────────────────────────────────────────────┤
│ High      $575                                    Latest            $575 │
│ Median    $90                                     Trend             ▲ Up │
│ Low       $19                                     Volume           ~1/mo │
├──────────────────────────────────────────────────────────────────────────┤
│   $600 ┤                                                                 │
│        │                                                                .│
│        │                                                                 │
│   $343 ┤                                                                 │
│        │                                                                 │
│        │                                                                 │
│        │                                                     .           │
│     $0 ┤.                                                .               │
│        ├─────────────────────────────────────────────────────────────────│
│    vol │█                                                █   █          █│
│        └─────────────────────────────────────────────────────────────────│
│         2026-01                      2026-02                      2026-04│
└──────────────────────────────────────────────────────────────────────────┘

eBay Listings

Aiwa CS-250 Original 1987 Cardboard Box 80s Boom Box Made In

$70.00

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