Quantum 755

Floor-standing loudspeaker, 2.5-way bass reflex with double bass

The Quantum 755 is the smaller of two floor-standing loudspeakers in the Quantum 750 series. Besides the extremely low-resonance 45 mm case front on a corpus with multiple stiffening, it offers a clear and modern language of shape that is available in perfect high-gloss or silk-matt varnish finishes. The latest-generation computer-optimised loudspeaker chassis deliver an uncompromisingly clean and dynamic sound.

The Quantum 755 is available in a black, white and black-mocha finish. One bass and one bass/mid-range loudspeaker with a diameter of 170 mm in conjunction with a ceramic-aluminium cone in a high-strength die-cast basket are responsible for highly precise sound and clean transitions to the powerful "F-Max" fabric dome tweeter with dual-compound cone. The offset high-gloss base is responsible for a stable stand and a perfect look.

Piano white


Piano black


Test reports

  • areadvd.de<br>10 / 2012

    10 / 2012

  • Stereo <br>1/2015


  • fairaudio<br>03 / 2013

    03 / 2013


25 mm tweeter

2 x 6.5“ Midrange-woofer

Frequency Response

22 – 50000 Hz

Cabinet surface

Piano Black/Black satin

Piano Black/Mocca veneer

Piano White/White satin


Airflex port with a large opening area to guarantee best bass coupling

Large resonance absorbers

Very sturdy and elegant design made from MDF boards with elaborate bracing

35 mm thick base plate in a high-gloss varnish finish

45 mm thick, two-layer baffle in a high-gloss varnish finish

Removable cover frame

Metal spikes included


2 ½ way, double bass, bass reflex


fmax tweeter with extended frequency range

Sturdy aluminium/ABS flange with optimised acoustic channels

Damped drilled pole core

Dual compound fabric cone

Woofer / midrange

Ceramic/aluminium cones for highest quality playback

Ventilated high-performance voice coils guarantee highest operational reliability

Flow-optimised, non-magnetic die-cast aluminium baskets reduce air turbulence and resonances


Elaborate phase- and amplitude-optimised crossover equipped with high-quality and select components

High-quality internal wiring


Bi-Wiring, Bi-Amping Option

Large connection panel with sturdy and encapsulated terminals to guarantee reliable contact even with high-quality cables possessing large cross-sections

2 ½ way bass reflex, double bass
25 mm tweeter
2 x 170 mm woofer-midrange
Power Handling (RMS / Max.)
180 / 300 Watts
Sensitivity (2.8V/1m)
93 dB
4 – 8 Ohms
Frequency Response
22 – 50000 Hz
Crossover Frequencies
250 Hz / 2800 Hz
Recommended Amplifier Output
> 30 Watts
Dimensions (WxHxD)
190 x 992 x 370 mm
22.4 kg
Cabinet surface
Piano Black/Black satin
Piano Black/Mocca veneer
Piano White/White satin


Data Sheet