Pioneer CS E421
A two-way infinite baffle bookshelf loudspeaker from Pioneer, with a carbon fibre blend mid-woofer and a dome tweeter.
Overview
The Pioneer CS-E421 is a two-way bookshelf speaker with an infinite baffle design. It came out as part of Pioneer's CS-E series. It has a 200mm carbon fibre blend mid-woofer and a 25mm dome-type tweeter, built for full-range audio reproduction.
Specifications
| Type | 2 way, 2 driver loudspeaker system |
| Frequency Response | 35Hz to 20kHz |
| Power Handling | 60W |
| Crossover Frequency | 5000Hz |
| Mid-woofer | 200mm carbon fibre blend |
| Tweeter | 25mm dome type |
Design
The CS-E421 is an infinite baffle type with two drivers. The mid-woofer and tweeter sit in a sealed enclosure, which keeps the rear wave from interfering.
Context
Market
A recent auction listing recorded a bid of €59 on March 2, 2025. That points to some collector interest in working or restored units.
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