Regular Sound On Sound readers will already know that I have used a pair of TB1s, Activated by Bryston Powerpac 120s, for many years with no complaints whatever. While this solution lacks the 'tweakability' featured in many active designs, and it is relatively expensive, it works very well indeed and the resolution and quality surpasses many similarly priced active designs. To that end, they have long offered the neat solution of the Bryston Powerpac amplifiers - single-channel self-contained units, available in a range of powers from 60W to 240W, which can be bolted to the rear panels of the speakers to produce a convenient 'powered speaker' - an approach PMC like to call Activated. Making active speakers to suit the budgets of the home-studio market while still meeting the quality threshold demanded by Peter Thomas, Managing Director and Chief Designer of PMC, has so far proved impossible - not, apparently, through lack of trying! To date, Peter has simply not found a way of incorporating active crossovers and amplifiers of sufficient quality at a low enough price to make this dream a reality, and the company has long recommended instead partnering their passive speakers with a top-quality amplifier to achieve the product's performance potential. Even the AML1 employs Bryston circuitry built under licence. The large active BB5 and MB2 systems, for example, employ specially modified Bryston active crossovers and Bryston amplifiers throughout.
PMC have long argued that while the active approach has some significant advantages over a passive design, it is an expensive solution requiring high-quality active components - filters and amplifiers. Only the largest systems - the BB5 and MB2 speakers - and the compact AML1 are available in fully active configurations. The majority of PMC's products are passive, meaning that they employ high-level crossovers constructed from passive components - albeit highly specified components laid out with enormous care on huge and complex circuit boards behind the terminal panels. Many of these products have already been reviewed in the pages of Sound On Sound, including the DB1, TB2, FB1, and AML1, and all employ highly sophisticated transmission-line loading principles unique to PMC. These products can be found in mastering houses, film dubbing suites, recording and broadcast studios, and outside broadcast trucks, and are increasingly making inroads into the homes of well-heeled hi-fi buffs.
#Pmc bb5 xbd professional
The Professional Monitor Company - now known more simply as just PMC - have built up a phenomenal reputation for their entire range of monitors, from the massive BB5/XBD system down to the tiny DB1. Pioneering digital amplifiers are combined with PMC's proven transmission-line cabinet designs to deliver spectacular monitoring performance at a project-studio price. Active systems can also be adjusted to suit customer taste and the individual listening environment by means of frequency controls - and to guarantee optimum performance in situ, they are always tuned by our factory-trained installation engineers.The TB2SA (outside) and DB1SA (inside) monitors, complete with their Flying Mole amplifier packs. This increases headroom and resolution, improves transient performance, and produces a more life-like, natural-sounding and more powerful speaker.
PMC’s active designs take loudspeakers to another level the amplification is precisely tailored to the specific designs and power requirements of the speaker, and is directly coupled to the drive units for superior control and a more efficient transfer of energy.
#Pmc bb5 xbd driver
The ultra-clean highs are provided by PMC’s 34mm high-frequency driver and the signature mid-range from the hand-crafted 75mm mid-range dome driver, so microscopic details are well and truly catered for. The twin-cabinet, pure analogue BB5 XBD-Active, with its distinctive 15-inch Radial™ drivers, features a vast reservoir of separately housed power amplification - more than 2400W per channel - with 3dB of extra low-frequency headroom compared to the single-cabinet BB5, and a bass response that goes down to an awe-inspiring 17Hz, making for a wider frequency range than any other speaker we manufacture.
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