Bowers and wilkins dm 305

But at least outwardly the system hasn't undergone any significant changes. The rear panel made of acoustically viscous plastic is molded in such way that wedge-shaped structure is formed inside, which increases the efficiency of energy absorption of spurious standing waves. Paper cone of the woofer is also profiled in a special way. Slit-type cupid lyrics of the resonator on the faceplate and the classic cylindrical one on the rear panel are connected with total volume of the loudspeaker, bowers and wilkins dm 305.

Rachel Cramond Thursday, October 25, They call this new form of construction the Prism system and it comprises a plastic moulded back panel having many of pyramid-shaped spikes projecting into the cabinet expressly to break up, and hence reduce the undesirable coloration from internal standing waves. However, it should still be seen as a non-luxury loudspeaker in comparison with most systems of similar dimensions. It does not simply have a strong family resemblance to the earlier model, it looks uncannily as if the designers have taken a DM and stuck it on top of a box with a moulded fascia whose angled edges carry the DM's profile down to floor level. Of course there is more to the new model than this. Although the 26mm tweeter is the same wide ranging soft-dome unit as in the DM, the woofer is entirely new. It is larger, at mm, and has a resin-impregnated homogeneous fibre paper coil with internal damping and a stiffened neck for improved stability.

Bowers and wilkins dm 305

The new DM is a relatively small and affordable two-way tower speaker whose performance belies its size, weight, and cost. The center of the woofer cone has a rigid conical dome, and both drivers are normally concealed by a removable plastic-framed grille. In addition to a conventional circular bass duct whose vent is on the rear of the cabinet, there is also a narrow ducted vent across the front of the cabinet below the woofer. The rear of the cabinet presents an unusual appearance. It resembles an egg-crate, with more than fifty square openings. At the center are the input connectors. The input connectors are two sets of recessed binding posts, normally paralleled by removable metal jumpers. They allow the system to be biwired or biamplified, and apparently they are designed for use only with stripped wire ends, which must be passed through holes in the posts and then screwed down; dual banana plugs cannot be used, and even single plugs are extremely awkward to install because of the limited visibility and finger access to the connections. Because the DM is a floor-standing system, it is not magnetically shielded. Our measurement of the external magnetic-field strength at 4 inches from the front panel of the speaker showed a safe flux level of less than 2 gauss, indicating that the DMs could be placed fairly close to a TV if necessary.

A lot impresses in the advantages of DM, but mermaid theme clothes a perfect bunch of mid-top aspect earns the warmest words. The upper portion, which houses the drive units and the Prism back panel, with its array of inward projecting 'wedges' and six front-to-back braces, has a front facing letterbox shaped reflex port as in the DM I am inclined to sum up the DM as a worthy floor-stander that looks handsome, despite that modest black ash vinyl finish, and avoids the fiddle of bowers and wilkins dm 305 smaller loudspeakers to floor stands.

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Rachel Cramond Thursday, October 25, They call this new form of construction the Prism system and it comprises a plastic moulded back panel having many of pyramid-shaped spikes projecting into the cabinet expressly to break up, and hence reduce the undesirable coloration from internal standing waves. However, it should still be seen as a non-luxury loudspeaker in comparison with most systems of similar dimensions. It does not simply have a strong family resemblance to the earlier model, it looks uncannily as if the designers have taken a DM and stuck it on top of a box with a moulded fascia whose angled edges carry the DM's profile down to floor level. Of course there is more to the new model than this. Although the 26mm tweeter is the same wide ranging soft-dome unit as in the DM, the woofer is entirely new. It is larger, at mm, and has a resin-impregnated homogeneous fibre paper coil with internal damping and a stiffened neck for improved stability. A novel feature, which enables the cone to emulate the smooth response of Kevlar cones, is a series of V-section embossed ribs described as 'wave spoilers'.

Bowers and wilkins dm 305

The new DM is a relatively small and affordable two-way tower speaker whose performance belies its size, weight, and cost. The center of the woofer cone has a rigid conical dome, and both drivers are normally concealed by a removable plastic-framed grille. In addition to a conventional circular bass duct whose vent is on the rear of the cabinet, there is also a narrow ducted vent across the front of the cabinet below the woofer. The rear of the cabinet presents an unusual appearance. It resembles an egg-crate, with more than fifty square openings. At the center are the input connectors. The input connectors are two sets of recessed binding posts, normally paralleled by removable metal jumpers. They allow the system to be biwired or biamplified, and apparently they are designed for use only with stripped wire ends, which must be passed through holes in the posts and then screwed down; dual banana plugs cannot be used, and even single plugs are extremely awkward to install because of the limited visibility and finger access to the connections.

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There are two pairs of terminals, spikes are attached. It resembles an egg-crate, with more than fifty square openings. There is no need to orient the speakers strictly to the listener - the stereo zone is quite wide. They call this new form of construction the Prism system and it comprises a plastic moulded back panel having many of pyramid-shaped spikes projecting into the cabinet expressly to break up, and hence reduce the undesirable coloration from internal standing waves. Crossover frequency is 3kHz and the two sections of the network are wired to separate pairs of deeply recessed terminals, as is usual these days to allow enthusiasts to opt for bi-wiring or bi-amplification. We measured a maximum of 26 ohms at 65 Hz and a minimum of just over 4 ohms at 1. A lot impresses in the advantages of DM, but probably a perfect bunch of mid-top aspect earns the warmest words. It does not simply have a strong family resemblance to the earlier model, it looks uncannily as if the designers have taken a DM and stuck it on top of a box with a moulded fascia whose angled edges carry the DM's profile down to floor level. Of course there is more to the new model than this. In addition to a conventional circular bass duct whose vent is on the rear of the cabinet, there is also a narrow ducted vent across the front of the cabinet below the woofer.

But at least outwardly the system hasn't undergone any significant changes. The rear panel made of acoustically viscous plastic is molded in such way that wedge-shaped structure is formed inside, which increases the efficiency of energy absorption of spurious standing waves. Paper cone of the woofer is also profiled in a special way.

The area of heads' mounting is reinforced by bars. Organ pedal notes can be relied on to expose such irregularities, which do indeed have an association in some designers' minds with the use of reflex enclosures. However, it is a middleweight performer with a limited punch. The former arrangement, which I suppose looks more disciplined, works well with over-bright loudspeakers as the listener is then marginally off-axis and extreme high frequencies are to some extent attenuated. At the center are the input connectors. Resolution of detail and stereo spread were both fine at moderate listening levels but any attempt at window rattling brought on a rapid coarsening of texture. Slit-type output of the resonator on the faceplate and the classic cylindrical one on the rear panel are connected with total volume of the loudspeaker. The extraordinary appearance of DM will definitely find its admirer. In addition to a conventional circular bass duct whose vent is on the rear of the cabinet, there is also a narrow ducted vent across the front of the cabinet below the woofer. The system has no explicit genre priorities: both strict fan of classics and rock music fan will be satisfied by sound quality. The system easily copes with the dynamics of orchestral themes, clearly draws out the most difficult and subtle patterns; the atmosphere of concert hall is clearly felt. They call this new form of construction the Prism system and it comprises a plastic moulded back panel having many of pyramid-shaped spikes projecting into the cabinet expressly to break up, and hence reduce the undesirable coloration from internal standing waves.