The Grand Concert loudspeaker which has required more than 1000 design plans throughout its development stages, is the culmination of professional craftsmanship and a passionate desire. It represents the very heart and soul of TRIANGLE.



Its structure comprises three distinct enclosures designed to ensure elimination of standing waves and vibration. The considerable weight of the loudspeaker (100 kg) required the development of the new exclusive Fixocal locking system, which locks the three enclosures together with up to 1.6 tons of clamping pressure.

Grand Concert is not just a technological showcase; all of triangle’s passion for music has gone into it. We have pushed our thrive for perfection to its limit. Bass is abysmally deep, the mids and highs simply go beyond the walls, you can feel the ambiance in the hall and it is totally gripping. At last, you can now enjoy a genuinely realistic listening experience. With the Grand Concert, triangle’s engineers have managed to blend together seemingly incompatible elements: the full texture of the timbre coupled with sublime airiness and power which conserves all its femininity.

In collaboration with Hutchinson, we developed an exclusive coupling process for the T16PG midrange driver. The resulting elimination of any vibration creates a sound image which is totally transparent and exceptionally sharp. This principle of mechanical coupling is drawn upon for the configuration of the filters which are separate and isolated, each one functioning uniquely within its own individual module.

SPEC system

An exclusive technology developed by TRIANGLE. Like the endpin of a cello, it evacuates mechanical energy to the ground.

Tweeter TZ 2900 GC

A marvel of mechanical ingenuity and precision machining, one of the cornerstones of the Magellan program.

Connector block

Made of pure copper and plated with gold to ensure perfect electric conductivity.

number of drivers 8
number of ways 3
Tweeter (2x) TZ2900 GC
midrange (2x) T16GMF100-THG06
woofer (4x) T21GM-MT10-THG06
sensitivity 91 dB/W/m
frequency range 28 Hz – 20 KHz (+/- 3 dB)
power handling 400 W
repetitive peak power 800 W
SPL Max 116 dB
nominal impedance 4 Ω
minimum impedance 2,5 Ω
low frequency roll-off 300 Hz (12 dB/Oct)
high frequency roll-off 2800 Hz (24 dB/Oct)
Dimensions 2150 x 600 x 450 mm
weight 100 kg

MAGELLAN unique system

The BI-POLAR arrangement is designed to faithfully reproduce
the soundstage by diffusing a 360° sound image.


Tweeter TZ2900GC

Optimized by computer simulation, its horn is shaped to provide a substantial attenuation of the directivity effect, i.e. off-axis drop in high frequency level. A remarkably smooth and fluid musical quality!


midrange T16GMF100-THG06

A unique design: extra wide bandwidth from 70 Hz to 4 000 Hz with minimum distorsion and the most linear output in the industry. The new cellulose fiber diaphragm features an exponential profile to ensure true-to-life reproduction in the medium frequency band.


woofer T21GM-MT15-THG06

In the MAGELLAN range, the woofers deliver realistic acoustic levels with minimum distorsion.