Pioneer CS E321

A compact 2-way infinite baffle bookshelf speaker system made by Pioneer. Sources disagree on the production years: some say 1976-79, others 1970-74.

Overview

The Pioneer CS E321 is a 2-way, 2-driver compact loudspeaker for shelf or stand mounting. It has a 200mm carbon fiber blend mid-woofer and a 25mm dome type tweeter, in a closed-box infinite baffle enclosure. It has a reputation for balanced sound. One seller called them "beautiful little speakers and very well sounding."

Specifications

Type	2 way, 2 driver loudspeaker system
Frequency Response	45Hz to 20kHz
Power Handling	40W
Crossover Frequency	4000Hz
Impedance	4Ω
Woofer	200mm carbon fibre blend mid-woofer
Tweeter	25mm dome type tweeter
Enclosure	infinite baffle

Design

The CS E321 uses an infinite baffle enclosure, also called a closed box. The mid-woofer has a carbon fiber paper cone with a textile surround. The tweeter is a dome type. The crossover point in this 2-way layout is 4000Hz.

Market

Used pairs of the CS E321 have been listed for €100 to €200. One example was listed at $117.81 and another at 199, with no currency given. Some units are described as in excellent condition and recently refurbished, and the descriptions say they are fully functional.

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