Bowers & Wilkins DM620 Speaker User Manual

Floor-standing loudspeaker system
Product Summary
The 600 series takes its place in a distinguished family tree that includes the world renowned
Matrix 801 and the Matrix 802. Something of this superb pedigree was bound to rub off.
In the same way that a luxury car benefits from racing technology, a 600 series loudspeaker
speaker system brings with it the pleasure of acquiring the worlds leading acoustic expertise
with inherent good value that will be music to your ears.
The DM620 comprises of an 8in bass/midrange driver with a reinforced polypropylene
diaphragm of critical flare delivers pure, crisp sound free from audible coloration. The bass
performance in the 30-litre enclosure is augmented by means of an 8in passive drive unit.
The tweeter is a 26mm metal-domed tweeter originally developed for the highly successful
Matrix 801 studio monitor. This high frequency unit has been specially created to permit
higher power handling.
Technical highlights
B&W Loudspeakers Ltd reserves the right to amend details of the specifications without notice in line with technical developments. E & OE. All trademarks acknowledged.
Drive Units
2-way 4th-order passive radiator digital
monitor system with bi-wiring
1 x 26mm high frequency with metal
dome, high-temperature voice coil
magnetic fluid cooling
2 x 200mm bass/midrange with rigid
die-cast chassis, reinforced
polypropylene diaphragm and 31mm
high temperature voice coil on Kapton®
Frequency Response
Nominal Impedance
Power Handling
58Hz – 20kHz ± 2dB on reference
96dB spl(2.83V 1m)
4 ohms
25W – 100W into 8 ohms on
undistorted speech and music
Height: 742mm Width: 236mm
Depth: 302mm
Simulated veneers of walnut or zelda
An integral feature is magnetic fluid cooling which combats compression by
reducing the temperature of the delicate voice coil in the tweeter at high
The practice of flush-mounting units into stylised moulded baffles
has been implemented in the 600 Series. This, together with the bevelling of
baffle edges, helps to fight diffraction and produce a cleaner sound. The front
polymer compound baffles and the high density fibreboard sub-baffles combine
to bolster the structure, and reduce radiation from mechanical cabinet vibration.
This is further improved by internal bracing of the cabinet walls.
The proven provision of being able to bi-wire or bi-amplify the system is
present. Two sets of top quality, gold plated terminals are present to enable
individual inputs for the high and low frequency units.