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Triangle - Signature Alpha


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The Signature range is a result of TRIANGLE's decision to relocate part of its manufacturing process to France, with the view of producing top quality speakers utilizing the expertise and the experience of its local teams. This form of luxury craftsmanship combines the finest woodwork with TRIANGLE’s acoustic expertise. Triangle's goal is to share the emotion of live performance, to realistically reproduce the sensation and realism of every instrument or voice. 

The flagship of the Signature range, this 1.3 meter high column includes three bass drivers specifically designed for this product. The performance level is extremely high, offering deep and fast bass. Recommended for larger rooms and spaces.

Tweeter TZ2550 in die-cast aluminum
Two woofers fiber glass cone and half-roll rubber suspension
7 high-density fiberboards
Piano lacquer finish : ten coats of paint
Mid-Range drivers paper cone and small pleat, peripheral short travel suspension
Twin vent system
Aluminium Pedestal SPEC System

The range’s conception, and design was 100% implemented in France at TRIANGLE’s workshop in Soissons. Thanks to the experience gained from the Magellan range, TRIANGLE is currently offering a form of luxury craftsmanship with SIGNATURE, born from the passion and the work of its teams. Each item is made and assembled with uncompromised precision to strive for manufacturing perfection and irreproachable sound.

Over the years, TRIANGLE has developed and patented innovations, improving upon the mechanics and vibrations of loud speakers.Every driver has been entirely redesigned. A new 185mm aluminum basket with better ventilation, new version of treated paper cones to increase clarity and top quality components to benefit from greater transparency and a more refined tonal balance.Other unique technology such as the twin vent and the SPEC system play their part in making TRIANGLE’s speakers unique.

The new phase plug has been designed to go with the 25 mm titanium dome. The tweeter horn is made from 100% injected aluminum originally developed for the Magellan project. The tweeter’s larger surface offers a greater dispersion of high frequencies. The compression volume of the back chamber has been significantly increased to provide better shock absorbance, thus preventing the return of sound waves within the dome. These enhancements have improved the quality and detail of high frequencies, finesse and transparency, as well as minimal sound distortion.

The 185 mm aluminum basket has been entirely redesigned to provide better ventilation to its double-layered coil. It is equipped with a small pleat and peripheral short travel suspension. The new version of this treated paper cone provides increased clarity at this critically important frequency level of sound reproduction. The phase plug has been replaced by a dust cap of identical shape and size to prevent air leaks.

This driver benefits from numerous enhancements producing a faster and deeper bass. It is equipped with a double magnet motor, a double-layered coil and an inverted half-roll rubber suspension, all of which ensure a faster speaker response. The cone profile was developed to be purely used in low frequencies. To make it more rigid, the glass fiber membrane is supported by a second paper membrane.

The Signature cabinets are made from 7 high-density fiberboards of 3mm bent with a press so as to obtain an overall thickness of 21mm. This high-density cabinet helps to considerably reduce the speaker’s vibratory behavior.

The top of the cabinet is beveled at an angle of 5° to round off the edges and to better reflect light. This level of attention to the finest detail is the key of to a high quality product. In view of embellishing this woodwork and of achieving a special luster, either seven or ten coats of paint are added during production in order to reach the “piano lacquer” finish. The cabinets are carefully polished to remove any flaws before adding a new layer of paint.

Each model is equipped with  a terminal for bi-wiring or bi-amplification. The terminals are designed and assembled byTriangle. Made of high quality  copper alloy they provide an excellent
conductivity. They accommodate a 5 mm diameter cable and banana  plugs with a locking system for excellent security. 

A unique element to the Twin Vent is that it discharges the rear wave created by the two separated bass drivers through a single vent. This system means that each of the drivers can operate in complete isolation. Increasing the volume does not disrupt the tonal balance, the only remaining distortion limit is the driver mechanics. The results in terms of power handling are amazing. The listening experience offers a dynamic, solid, well sustained bass.

The performance optimization of each loudspeaker has enabled TRIANGLE to reduce the amount of components needed in its filters and audio signal path. As a result, the range benefits from greater transparency and a more refined tonal balance. The new filtering system, separating the bass section and the midrange/treble section on the Delta and Alpha models, eliminates the emission of electromagnetic waves and improves the finesse of the midrange/high frequencies. As with all Triangle speakers they are protected against power surges. To achieve the most optimized results the internal cable was only chosen after multiple listening tests. An element that is often forgotten, Triangle has always paid particular attention to the wiring. The cable
provides a perfectly clear sound through medium frequencies and a solid, rigorous sound through low frequencies. The combination of these two cables minimizes resonance and enhances
performance. A special form of insulation, made from polyethylene dielectric, helps to create a cleaner and smoother sound. In addition, the PVC-jacket on the outside, maintains a low friction coefficient.

Sensitivity (dB/W/m) 92
Bandwidth (+ - 3dB Hz - kHz) 32-20
Power Handling (W) 140
Repetitive peak power (W) 280
Nominal impedance 8
Minimum impedance 3,3
Low frequency roll-off (Hz) 290
High frequency roll-off (KHz) 2,6
Dimensions (mm, H x L x P) 1270x233x372
Dimensions with pedestal (mm, H x L x P) 1330x370x386
Net Weight (kg) 34


Contact Len Wallis Audio

Address: 64 Burns Bay Road,
Lane Cove NSW 2066,
Telephone: (02) 9427 6755