Heritage & Manufacture:

The Sibelius SG is designed to deliver extremely lifelike sound reproduction for all genres of music, but especially classical, jazz, folk, blues and rock. From solo voice to small ensembles, chamber, symphonic orchestras, electronic and full on rock, the Sibelius SG faithfully reproduces the full dynamics of the original recording.  It’s shallow drive cone delivers a very wide and natural soundstage. Close your eyes and the enclosures disappear.

The Sibelius cabinets are crafted from 3.2 cm thick French oak and take a total of 12 weeks to manufacture from start to finish. Each cabinet has its own visual signature and is matched with its left (or right) handed partner, prior to receiving its final colour finish.  The drive cones are run-in for 360 hours prior to placing. Run-in sound material varies from classical to rock music, from jazz to folk and large scale opera to speech. This means our loudspeakers are ready to play when you receive them.

The Sibelius SG is a single drive unit, floor standing loudspeaker utilizing an internal front loaded, quarter wave ‘V’ horn. It has a shallow, all alloy drive cone which is mounted into a solid oak cabinet. Apart from the internal connecting leads, terminal posts and internal dampening materials, The Sibelius SG has no other components.

Pairing: Because The Sibelius SG delivers so much detail (what comes in you hear) they are best paired with well designed, high quality amplifiers. This means; very low distortion, neutral, and extremely dynamic. We have no specific preference whether the amplifier design is single ended ‘Class A’ triode vacuum tube, or high quality solid state. In our listening rooms we use all kinds of amplifiers, even a pair of high output, Class D mono-blocks. If we have a preference, it is often for ‘Class A’ but we have also had very good results with current dumping amplifiers and AB (push/pull) amplifiers. Please  contact us directly to discuss your specific situation and requirements.


Impedance: 7.2 Ohm
Power handling: 35 Watts RMS – 70 Watts peak
Efficiency: 87db @ 1W @ 1 meter
Maximum output: 105db @ 1 Meter peak (in practice consider 96-98db as a working maximum)
Frequency range: 38Hz-20Khz. (-6db occurs in most acoustically well balanced listening rooms at around 36Hz)
Dimensions: 1095mm (H) 225mm (W) 295mm (D)
Weight: 23kg each (excluding packaging)

Note: The Sibelius SG enclosures are made of solid, natural, oak.  They are made using the same assembly principles as wooden, musical instruments (i.e. clamped and glued together by hand). This requires that they are kept in suitable conditions, where temperature levels are relatively stable, and humidity does not fall below 40% or exceed 60%.  Please contact us for advice on looking after your Sibelius loudspeakers.