JBL 4627
The JBL 4627 is a 15-inch, three-way studio monitor from JBL Professional's 4600 series, a line of reference monitors aimed at the professional market. The record on this model is thin. No production years, original pricing, or detailed historical context have surfaced. What is documented comes from two equipment directory sources, and they agree on every specification.
The 4627 is built around a 15" JBL 2230H woofer, a 4" midrange and a 2" 2416H tweeter. Both sources list the midrange as a 2202H, though that driver number is more commonly associated with a 12" woofer in other JBL contexts. It is recorded here as stated. The crossover points are 500 Hz and 2.5 kHz. Both sources list power handling at 200 watts RMS, an 8-ohm impedance, and a sensitivity of 95 dB (1W/1m). Frequency response is rated at 50 Hz to 18 kHz ±3 dB. The cabinet measures 26.5" H x 20" W x 15.5" D and weighs 85 lbs.
The 4600 series appears to have been a professional studio monitor line, though the available sources give no sibling model names or market context. A brief mention in Studio Sound (July 1988, p.30) places the 4627 alongside the 4629 in a discussion of floor monitors from Stage Accompany. That suggests the 4627 saw use in stage sound reinforcement as well as in the studio.
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