Celestion System 6000

The Celestion System 6000 is a professional studio monitor loudspeaker, documented as a 2-way active monitoring system. Celestion specified a system frequency response of 32 Hz to 25 kHz. The built-in amplification was rated at 100 W for the low-frequency section and 50 W for the high-frequency section. The drive units were custom-built 160 mm and 25 mm transducers.

Period press noted the System 6000 alongside Celestion's then-current SL series. HiFI-Stereo (September 1986, p.145) called it an enclosureless subwoofer meant to be used in pairs with the SL600 or other SL series speakers. A later issue (August 1987, p.63) described it as a double-dipole subwoofer that made a "perfect bass base" for the company's SL600 two-way speakers. By September 1989, HiFI-Stereo (p.107) listed the System 6000 at $2,700 a pair. It called it a double-dipole bass-extension system, and said the matched pair of low-frequency drivers gave an optimally flat response down to 20 Hz.

Past that, the record gets thin. The materials available to the Archive document no production years, no original pricing beyond that 1989 listing, no dimensions and no enclosure details. The identity is also muddy. The trade press presented the System 6000 both as a subwoofer companion to the SL600 and as a standalone studio monitor, and those two descriptions are not easy to reconcile from what survives. Celestion was clearly pursuing a dipole bass approach in this period, which was an outlier for a company better known for conventional sealed and reflex boxes.

Known specifications: