Graham Chartwell LS6
Loudspeakers
Relative price
typical
Among the 26 loudspeakerss in the catalogue, this one is typical.
A band places a component against its peers and carries no price. It is deliberately the only price indicator on this page: a second one, measured against a different set, would narrow the two together far enough to give the figure away.
What it is
Designed by Derek Hughes from first principles (NOT a BBC-licensed model — unlike LS3/5, LS5/9, LS5/8 in the Graham range). Born from desire to try a larger driver in a small cabinet; "scaled-up LS3/5A rather than shrunken LS5/9".
PORT-BUNG NOTE: Sound on Sound explicitly suggests buyers can block the rear port with foam — "transformed from a monitor I found not easy to get a grip on, to one I had few doubts was delivering reliably." Port-blocking converts the LS6 to a quasi-sealed alignment with reduced bass extension but better placement tolerance. Foam bungs not factory-supplied. This is a possible workaround for sealed-cavity buyers but constitutes user modification of the speaker design and is not formally supported by Graham Audio.
Front-panel tweeter trim (+1/+2dB) provides per-room calibration not available on most rivals — but does not address the rear-port placement issue.
CATALOGUED FOR REFERENCE: retained in catalogue as the canonical example of an EXCELLENT rear-ported design that fails on enclosure-suitability rather than depth or score. Consider as upgrade candidate IF the cabinet is later redesigned for free-standing speaker placement, OR if buyer accepts port-bung modification. Also see LS6 10th Anniversary (front-ported) — not yet in catalogue but a future addition candidate.
CAVITY HEIGHT INELIGIBLE (added 2026-05-12 per constraint audit): Cabinet height 360mm exceeds the cavity's 324mm physical maximum by 36mm. HARD INELIGIBILITY confirmed (in addition to rear-port placement issue documented above). Per the Graham LS5/9 precedent (2026-05-05), height check now enforced in eligibility_filter.py — LS6 fails it. Catalogue retained as §7 reference for redesigned-cabinet context.
What the reviewers said
Derek Hughes designed BBC-derived monitor Graham Audio LS6 launch + Hi-Fi News reviews· Tonal body
the soundstage... is panoramic Darko.Audio 2019· Spatial resolution
a big sound that can really boogie Darko.Audio 2019· Dynamic coherence
clearer bass... considerably tighter Darko.Audio 2019· Bass control
characteristic warmth and detail aplenty Darko.Audio 2019· Tonal body
How it scores
Clarity
- Spatial resolution 82 from listening evidence
Voice
- Tonal body 76 from listening evidence
Bass
- Bass control 76 from listening evidence
Specifications
| speaker type | standmount |
|---|---|
| enclosure type | ported (rear) |
| way count | 2 |
| drivers | 165mm polypropylene long-throw bass/mid + 19mm Mylar dome tweeter |
| crossover hz | 4000 |
| sensitivity db | 87.0 |
| nominal impedance ohm | 8.0 |
| minimum impedance ohm | 6.0 |
| recommended amp w | 50/150 |
| frequency response hz | 45/20000 |
| bass extension minus6db hz | 45.0 |
| max spl db | 100.0 |
| dimensions mm | 240/360/260 |
| weight kg | 9.5 |
| finishes | Cherry, Walnut, Oak, Ebony, Rosewood |
| stand required | True |
| notes |