Linn Isobarik DMS
Great original condition these big and impressive speakers come with stands and boxes.
The cabinets, drivers and grills all in very good condition and they sound fantastic.
Some info from Linn as follows;
The Isobarik loudspeaker was originally available in two types: DMS (domestic monitor speaker)
and PMS (Professional Monitor Speaker). The main difference between the two was the
crossover: DMS were fitted with an internal passive crossover, whereas PMS had no crossover
at all, and instead used an external Active crossover.
DMS were discontinued in 1988 due to the introduction of an external passive crossover. This
improved passive performance and allowed very easy upgrade to Active.
Each speaker has two of each drive unit fitted – i.e. two bass, two mid and two treble. The
second bass unit is hidden inside the cabinet, behind the visible bass unit and this forms the
basis for our patented Isobarik equal-pressure bass system. This means that the front speaker
behaves as if it is in a much bigger enclosure.
Ceased Production: 1992
Size: W 343mm x D 416mm x H 760mm
Stand height: 230mm (not including spikes)
Type: 3-Way Infinite Baffle
Frequency Response: 25Hz-20kHz +/-3dB
Minimum impedance: 3.7ohms (4 ohm crossover)
Efficiency: 86dB for 1 watt at 1 metre (1KHz)
Crossover points: 375Hz & 3KHz
Power handling: 100watts music
Drive units: Treble -- 2 x 19mm soft-dome tweeter
Mid -- 2 x B110 (specially modified)
Bass -- 2 x B139 (specially modified)
Cabinet Loading: Infinite baffle
Early Isobariks were fitted with a 3-pin XLR (cannon) socket and the wiring connections are as
1 – No connection
2 – Positive [+] connection
3 – Negative [-] connection
Priced at £995