Celestion A4
The Celestion A4 is a model where the archive record is thin. What is certain: it was a bookshelf loudspeaker made by Celestion, and it appears in the Audio Equipment Archive at SoundStage Network (January 2001), listed simply as a "Loudspeaker." The only other real documentation is a single used-unit listing on vintagehifi. That speaker carried a printed label reading "25W" and "4 Ohm - 8 Ohm." The label had no model number on it. The A4 identification came from the seller's own database record.
There is one more scrap of visual evidence: an ipernity photo captioned "Celestion A4 series loudspeakers (Mk1?)," where the question mark shows the photographer wasn't sure of the version. That is the whole design record. No driver complement, crossover data, cabinet construction or dimensions have turned up.
With a 25-watt rating and a 4-8 ohm impedance range, this was a modest domestic speaker and not a studio monitor or a high-end piece. That is inference, not documentation. The listing describes the unit as in good working order and "beautiful," and it came with its original box. No production years, original price or market context have been found. A contemporary review in Audio (January 1977, p.54) noted that the speaker's handling of complex musical passages was not as strong as its crescendo handling test suggested. An inner musical voice at middle C was reduced by one-half dB when a random noise signal of 2 watts average level was superimposed.
Known Specifications
- Power handling: 25W (printed label)
- Impedance: 4–8 Ohm (printed label)
- Type: Bookshelf loudspeaker
Beyond these facts, the record is silent. If you own a pair of A4s and can add anything, such as years of manufacture, driver sizes or crossover details, the Archive would welcome the correction.
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