Graham Audio LS4/4F Loudspeakers
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Product Overview & Specifications
The Graham LS4/4F 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.
Inspired by the legendary LS5/5, the Graham LS4/4F loudspeaker brings studio-level performance into smaller domestic spaces. Designed by renowned audio engineer Derek Hughes, this model builds on Graham Audios commitment to authentic sound reproduction using BBC-approved design principles.
Adapted from BBC studio heritage
The LS5/5 was originally developed for large studio rooms at the BBC. To make that performance accessible in home environments, Derek Hughes reimagined the design for more compact spaces while preserving its core acoustic DNA.
- Same tweeter & midrange drivers: Retains the trusted components from the LS5/5 for consistent tonal character.
- Downsized bass driver: A newly selected 270mm bass unit ensures powerful low-end without overwhelming smaller rooms.
- Enhanced dynamics: Designed to maintain the musical energy and precision of its larger sibling.
Advanced slot-loaded design
Just like the LS5/5, the LS4/4F features Graham Audios distinctive slotted baffle system. This approach improves stereo imaging and widens the sweet spot, delivering a more immersive listening experience across the room.
- Wider soundstage: Expands the listening area without sacrificing clarity or detail.
- Focused presentation: Ensures vocals and instruments stay well-defined, even off-axis.
Thin-wall cabinet construction
Following the classic BBC thin-wall principle, the LS4/4F uses lightweight but rigid panels to reduce unwanted resonances. This design contributes to its clean, natural sound and exceptional transparency.
- Studio-grade build: As with all Graham Audio products, quality materials and craftsmanship ensure durability and high performance.
- Authentic BBC engineering: Faithfully follows the acoustic principles pioneered by British broadcast engineers.
The Graham LS4/4F offers the precision of a studio monitor and the warmth suited for home enjoyment. Whether youre a serious listener or an audiophile collector, this speaker connects you to the music with honesty and intimacy.
- System: 3-way, bass reflex
- Veneer finishes ; Cherry, Oak, Rosewood and Walnut
- 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
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Graham Audio LS4/4F Loudspeakers
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