Pioneer CS-313A (1976)
Compact, punchy, and wrapped in a metal ring that tells you which one it is.
Overview
The Pioneer CS-313A is a compact bookshelf loudspeaker introduced in 1976 as a 2-way, 2-speaker system. It was built for listeners who wanted solid performance without dominating the room. The small box has one quirk that separates it from its siblings: a metal ring, or "ghiera metallica," around the drivers. That band is the giveaway that you're looking at the CS-313A and not the standard CS-313. Pioneer went with a bass-reflex enclosure. There's a port in there helping to stretch the low end, which gives it a bit more kick than a sealed box of the same size could manage. It's not a floorstander and it's not a mini-monitor. This is mid-70s bookshelf territory, the kind of speaker that sat on a shelf under a window, flanking a turntable and feeding a receiver that probably had wood veneer on the front.
Specifications
| Manufacturer | Pioneer |
| Model | CS-313A |
| Product Type | Compact bookshelf loudspeaker, 2-way, 2-speaker system |
| Enclosure Type | Bass-reflex system |
| Sensitivity | 93dB |
| Frequency Response | 50Hz to 20kHz |
| Crossover Frequency | 5000Hz |
| Impedance | 8Ω |
| Woofer | 1 x 200mm cone |
| Tweeter | 1 x 77mm cone |
| Dimensions | 270 x 500 x 230mm |
Collectibility & Value
These aren't rare, but they're not throwaways either. On the secondhand market, a pair of CS-313As has been listed for as little as £30.00 on PicClick UK. Other recent listings show prices like €50 (Feb 18, 2026), UAH 3,000 (Feb 27, 2026), or CZK 10,000 (Feb 8, 2026) in various lots, though some include other gear, which muddies the numbers. A forum user on Audiokarma once asked if 40 euros for a pair was a fair deal, which suggests that price is in the ballpark for a functional set. Another buyer picked up a pair and went online wondering what kind of amp to pair with them, thinking they were 6 ohms. They're 8Ω, so just about any vintage or modern receiver will drive them fine. Given the age, watch for tired foam surrounds or damaged cones. Nothing here suggests systemic failure modes - yet.
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