The Signature 603 proves that bookshelf speakers can achieve genuine high-end
performance. A three-way design with a high-resolution tweeter system and a precision-tuned cabinet
delivers impressive dynamics and clarity. Use it as the main pair in a compact room or as part of a
larger surround system. In either role, it retains the rich sound of the Signature range.
THREE-WAY BASS REFLEX DESIGN
A 170 mm bass-midrange driver, a 30 mm dome tweeter and a 20 mm super tweeter
share the work across three ways. Dividing the spectrum this way keeps each unit inside its optimum
range, which is unusual in a speaker this size. The payoff is resolution and composure well beyond
typical two-way monitors.
DUAL fmax TWEETER UP TO 50 kHz
A state-of-the-art fmax dome tweeter and an additional super dome tweeter
extend the response to 50 kHz. Powerful neodymium magnets and precise engineering deliver detail,
clarity and dynamics without any hint of harshness. A spherical waveguide improves dispersion for a
balanced, natural soundstage.
FE-DYNAMICS CERAMIC SANDWICH CONES
The bass and midrange drivers use advanced FE-Dynamics technology with a
three-layer ceramic, aluminium, ceramic cone. This construction is very rigid and minimises unwanted
resonance for pure, controlled sound. A ventilated voice coil dissipates heat so performance stays
consistent at high levels.
PRECISION-TUNED CABINET
The robust MDF cabinet is tuned as a bass reflex enclosure to get the deepest
possible extension from a compact volume. Response reaches down towards 32 Hz while bass stays defined
and rhythmically accurate. Rubber feet ensure stable, resonance-free placement on any surface.
PREMIUM GERMAN AUDIO
SHELF OR STAND YOUR CHOICE
At roughly 205 x 365 x 282 mm and 6 kg per speaker, the 603 is easy to place.
It works on a sideboard, shelf or dedicated stands. Placement flexibility makes it easy to integrate
into rooms where a floorstander would dominate. Wherever it goes, the sound stays big and the footprint
stays small.
EASY TO DRIVE READY FOR
POWER
Sensitivity of 90 dB and a 4 to 8 ohm impedance range make the 603 an
undemanding partner for amplifiers from around 20 watts. Power handling of 100 watts RMS leaves generous
headroom for dynamic peaks. Modest electronics and high-end amplification both bring out the best in it.
KLIPPEL OPTIMISED FOR
PRECISION
Every component is optimised using Klippel laser measurement technology to
minimise distortion. Driver behaviour is analysed under real working conditions, not idealised ones. The
payoff is faithful reproduction and reliable performance year after year.
STRIKING SIGNATURE
LOOK
With its satin matte front, precision trim rings and distinctive grey ceramic
cones, the Signature 603 is visually striking. The robust MDF cabinet is finished in scratch-resistant
vinyl for durability and refined aesthetics. A removable fabric grille lets you choose between technical
and discreet.
BUILT FOR STEREO AND HOME CINEMA
The Signature 603 can support the 999, 809 or 607 as a surround speaker.
Where space is limited, it also works well as the main stereo pair. It combines directly with the Center
Pro II, ATM 202 Atmos speakers and the Omega CS 12 subwoofer. Developed in Germany, it keeps the same
tonal signature throughout the system.
