Description
The LS3/1 is a sealed BBC style monitor descended from the LS5/1 and originally intended for outside broadcast work. It suits close listening in small to medium rooms where a coherent nearfield image matters.
Specifications
- Two way sealed enclosure
- Damped MDF cabinet
- Frequency response 43 Hz to 18 kHz ±3 dB
- Nominal impedance 8 ohms
- Sensitivity 87 dB (2.83 V, 1 m)
- Maximum output over 108 dB for a pair at 2 m
- 380 mm bass/midrange
- 2 x 25 mm soft dome tweeters
- Recommended amplifier power 50 to 250 watts
- Crossover at 1.6 kHz, 22 elements
Design
- Latest of Graham’s BBC based designs, originally aimed at outside broadcast use
- Successor to the LS5/1 studio monitor, with similar drive units
- Bass driver modified for sensitivity and bass response in the smaller cabinet
- Sealed infinite baffle cabinet, not ported
- Bass driver behind a perforated metal plate with a slot similar to the LS5/1 and LS5/5 for smoother off axis response
- Dual coaxial tweeters on a central panel for coherent response at close distances
- Follows the BBC thin wall principle
Finishes and pricing
Cherry or Oak $10,899, Walnut $12,299 (per pair).





