ALIZEE HERITAGE FIELD-COIL - Pair of TQWT loudspeakers 2x25W / 96dB

Article – Stereo Sound – December 2019

Thanks to its long-standing work on loudspeakers, Supravox engineers design most of their loudspeakers without using a filter, which is the best solution to obtain an exceptional and natural sound reproduction.

 This TQWT (Tapered Quarter Wave Tube or Quarter Wave) loudspeaker is a full-range loudspeaker equipped with a 215 Heritage bicone excitation.
This loudspeaker uses the original cone of the legendary T. 215 SRTF wideband from the sixties.

We started from original models in order to find the sound qualities that have satisfied music lovers over the past decades.
The new ventilated field-coil motor, developed using FEA software, is wound on CNC tooling. The magnetic field reaches 1.2T in the 8mm gap.

The profile of the pole brings a perfect symmetry of the Bl(x) curve, with an excursion of 3.2mm, and generates less distortion.
We have designed a new spool, light, in copper-plated aluminum wire, on Nomex support.

A thorough study of the treatment of the membrane ensures a linear response, and very extended.
The addition of the original bicone, in very thin and light paper, stiffened by a specific treatment, makes it possible to extend the response up to 20kHz.

TECHNICAL CHARACTERISTICS

FURTHER INFORMATION