Graham Audio LS4/4f Loudspeakers
Graham LS4/4
The Graham LS4/4 designed by Derek Hughes, is a development from our work with the LS5/5.
The LS5/5 was a studio speaker designed for large studio rooms at the BBC, and we wanted to include a speaker with similar dynamics for smaller sized domestic rooms.
Derek Hughes redesigned the LS5/5 and scaled it down using the same tweeter and mid-range driver but using a smaller bass diver (270mm).
The slotted system remains as it gives a superb focus, sound stage and increased sweet spot.
The design adheres to the BBC thin wall principle and again as all Graham Audio products is studio grade.
Specifications:
System: 3-way, bass reflex
Veneer finishes
Dimensions: (WxHxD): 31 x 110 x 48 cm
Frequency Range: 40Hz-20kHz, +/- 2db
Impedance: 8Ω
Sensitivity: 88db SPL (2.83V, 1M)
Max output >103db/pair at 2M
Bass driver: 270mm
Midrange driver: 200mm
Tweeter: 25m soft dome
Recommended amplifier power: 50 to 200 Watt