Celestion SL600si loudspeaker & DLP600 digital equalizer Specifications
Celestion SL600Si: two-way, sealed-box loudspeaker with Aerolam (aluminum-honeycomb) enclosure. Drive-units: 1.25" copper-dome tweeter, 6.5" Kobex-cone (PVC) woofer. Crossover frequency: 2.3kHz, second-order, 12dB/octave slopes. Frequency response: 60Hz-20kHz ±3dB, low-end, -6dB at 60Hz in free-space conditions. Sensitivity: 82dB/W/m. Nominal impedance: 8 ohms. Amplifier requirements: up to 120W on program.
Dimensions: 14.5" (368mm) H by 7.75" (197mm) W by 9.25" (235mm) D. Enclosure volume: 12 litres (0.4 cubic feet). Weight: 11.25 lbs (5.1kg) each.
Serial numbers of units tested: 121191 & 2.
Price: $1995/pair not including stands (1989-1992); no longer available (2002). Matching 18" Celestion Si stands cost $299/pair.
Celestion DLP600: stereo digital filter/time-domain equalizer that fits between an S/PDIF, 44.1kHz digital data source and a D/A processor (32kHz and 48kHz data are accepted, but equalization is disabled). Data inputs: one optical (Toslink), one coaxial (gold-plated RCA jack); 16-bit-capable only. Data outputs: one optical (Toslink), one coaxial (gold-plated RCA jack). Front-panel controls: equalization in/out. Indicators: Power On, Data Lock, Equalization In/Out.
Dimensions: 7.75" (240mm) W by 1.75" (44mm) H by 9.25" (182mm) D. Weight: 2.5 lbs (1.15kg).
Serial numbers of units tested: 543199 (sample 1), 726050 (sample 2).
Price: $799 (1992); no longer available (2002).
Common to both: Approximate number of dealers: 240.
Manufacturer: Celestion International Ltd., Ipswich, Suffolk, England. US Distributor: Celestion Industries Inc., Holliston, MA (1992); www.celestion.com (2002).