Unity Audio Boulder Mk III DSP Version Active Monitors (Pair)
Crystal Membrane
The eye-catching surface of the precision built German Crystal Membrane is more than just an attractive design feature. The Crystal Membrane woofer construction uses Aluminum-Sandwich AS Technology. The crystal-shaped inverse aluminium dome is joined to the paper cone in a special gluing process to result in the desired sandwich construction. Resembling the surface of a large crystal, the aluminium-foil stamping stiffens the aluminium dome, diminishing resonances and minimizing coloration, while improving power handling and dynamics.
Amplification – Class D & Class A/B with two separate power supplies Regarded as easily rivalling many larger and more costly monitoring systems, the new MK-III DSP is now fitted with 2 x 300 watt Class D amplifiers with their own separate power supply specifically for the 2 x Crystal Membrane woofers. The Boulder MK-III DSP still retains it’s two original discrete custom Class A/B amplifiers with their own dedicated power supply for the Coaxial X-Jet mid-range / ribbon tweeter.
X-JET Coaxial Mid-Range & Folded Ribbon Tweeter Drive Unit
The Coaxial unit which is hand built in Germany comprises of a 5″ ring mid-range drive unit and a centrally mounted JET5 50 kHz folded ribbon tweeter. The combination provides a reduced stray magnetic field with higher efficiency, improved dynamics and smooth, even frequency dispersion.
This compact design of the dedicated mid range/high frequency coaxial drive unit assures true point source phase accurate delivery across it’s entire frequency spectrum from 694 Hz to 50 kHz, eliminating phase rotation and frequency anomalies. The result is exceptional imaging and detail, significantly improved impulse and power control providing much improved dynamic range and an even frequency response and dispersion throughout the listening space. The X JET driver can be described as dynamic and detailed with depth and spaciousness over a broad listening area providing exceptional detail to beyond 50kHz.
Jet 5 Folded Ribbon Tweeter
This folded ribbon produced in Europe has been in manufacturer since the early ’70’s and developed over the years to be perfected and is regarded as the best in the market. A special patented glueing and surface process guarantees minimal distortion at higher levels along with the conducting aluminium wires.
the JET 5 tweeter enthrals with its lightning-fast response and wide dynamic range, offering minimal distortion, lots of headroom and a distinctly wider frequency range than conventional dome tweeters. The ELAC JET tweeter is one of the most legendary tweeters in the industry and has won international praise with its transparent and effortless sound image.
Specifications
- 3-way active monitor
- Closed cabinet design
- 30mm Corian front baffle
- Coaxial 5” midrange and 50kHz folded ribbon tweeter
- Two 8.5″ / 220mm Crystal Membrane Woofer
- 2x 180 watt Class D amplifiers and 1 Class A/B Midrange/tweeter amplifier
- 96kHz/24 bit DSP input/crossover
- 2 x New 8.5″ / 220mm Crystal Membrane Woofers.
- 2 x New 300 watt Class D amplifiers inc dedicated PSU for woofers.
- Balanced XLR input
- 18mm grey Baltic birch 9 ply plywood cabinet
- Brutally honest and vibey
- HF EQ Shelf @ 10kHz +/- 2.5dB
- Mid Cut/Boost +/- 2.5dB
- Frequency response 40Hz-30kHz +/- 1dB
- Frequency response 40Hz-30kHz +/- 1dB
- Sealed Baltic Birch 12mm (.5”) Plywood Cabinet
- Corian 18mm Front Baffle Design
- Balanced XLR Input
- Balanced XLR Output
- 368mm deep x 256 mm wide x 549mm high
- 23Kg each