Unity Audio

The Boulder Mk II Hi-Fi

Loudspeakers, Stand Mount

0% Finance Available

This product has a 1 year warranty.

Finance Example

£1,919 initial 20% deposit then

£255.87 per month for 30 months

Other finance terms available

The Boulder Hi-Fi is a 3-way active loudspeaker that redefines expected levels of sonic performance and is regarded as truly world-class musical performer. Boasting a distortion free fast, accurate detailed sound and prodigious extended bass response the Boulder brings you closer than you thought possible to your musical collection.

The Boulder features the same Tim de Paravcini amplifiers as the rest of the range. Internal wiring is by Audioquest and critical audio path components are supplied by Mundorf.


Regarded as easily rivalling many larger and more costly loudspeakers designs, The Boulders incorporate no less than four discrete bi-polar low feedback amplifiers designed by amp guru Tim de Paravacini. With the power delivery of the custom Class A/B amplifiers at their disposal, The Boulders deliver a life-like sense of scale and take any performance in their stride.


The Boulders are fitted with two 220mm SEAS custom Aluminum woofers that provide tremendous bass precision down to 32Hz and beyond. The unique ELAC coaxial 5″ mid-range & 50 kHz tweeter drive unit works as a point source over 7 octaves and delivers linear amplitude and phase independent of frequency. This results in incredible detail in the mid range and crystal clear highs frequencies.


To accommodate the large 220mm woofers the sealed cabinet uses Baltic Birch plywood and a huge 30mm Corian front baffle with large radius edges to reduce reflection and cabinet resonances.