Crown OC-150A
Documentation on the Crown OC-150A is thin. What the record shows: it was a 2-way loudspeaker system from Crown International, part of the company's "2000 series" of speakers. Crown is far better known for its amplifiers and signal processors than for loudspeakers, so any Crown speaker from this era is a relatively uncommon sight. Audio magazines of the period covered advances in speaker and tape technology, including digital technology and remote control features, but no specific review of the OC-150A has been located Audio (January 1977, p.24).
The design is straightforward: a 15" bass driver paired with a high-frequency horn, rated at 35-20,000 Hz (±3 dB). Connection is via a terminal barrier strip. The surviving spec sheet is incomplete. Power handling is listed as a category in the original documentation, but the value wasn't captured. No sensitivity, crossover frequency, or impedance figures have surfaced.
No production years, original price, or market context have been found. The OC-150A appears to be one of the more obscure entries in Crown's catalog, and collector information is essentially nonexistent. What is known is that it's a big, 2-way, 15"-driver speaker from a company that didn't make many of them.
- Type: 2-way loudspeaker system
- Series: Crown "2000 series"
- Frequency response: 35–20,000 Hz (±3 dB)
- LF driver: 15" bass speaker
- HF driver: High-frequency horn
- Inputs: Terminal barrier strip
Similar items on eBay
No exact Crown OC-150A listings are live right now — these searches show current Crown and similar vintage audio gear on eBay:
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.