Triangle Solstice 3 ash black (pack of 2)

Drawing a wide spectrum and an open sound from a reduced format: that is the ambition of this two-way bookshelf speaker, the most compact speaker in Triangle’s new Solstice range. It incorporates the company’s in-house innovations developed for the series, a brand-new horn-loaded tweeter and a 16 cm cellulose mid-woofer, in a 12.9 kg cabinet that covers rooms from 10 to 35 m². A compact speaker that aims higher than its size suggests.

A completely new 16 cm driver

The 16 cm mid-woofer was redesigned for the Solstice range. Its injected aluminum basket adopts an arch shape that stiffens the whole assembly and lets air circulate around the cone, including at high volume. The cone is made of natural cellulose pulp, the material Triangle has long worked with for its rendering of voices and acoustic instruments. A new rear bonding method enlarges the radiating surface and smooths the response. On the bass side, the bass-reflex port does not open at the rear but into the plinth, in the form of a laminar duct specific to the range that limits airflow noise. The response extends down to 48 Hz at plus or minus 3 dB, a rare low-end extension for this size.

Detailed highs that do not cause fatigue

The tweeter bears the reference TZ2540MG: a 25 mm dome in an aluminum-magnesium alloy, already used on the brand’s Esprit 40th and Magellan 40th series. Aluminum provides rigidity, magnesium damps resonances, enough to maintain precise highs up to 22 kHz without harshness. Triangle has reworked the horn according to a waveguide profile called OS-SEW, which broadens and stabilizes the soundstage. At the back of the horn, a one-piece molded phase plug, barrel-shaped, evens out sound dispersion: the timbre changes little when moving off the speaker axis. The motor uses a neodymium magnet and an absorbent rear chamber that reduces internal reflections and distortion.

Cabinetry that disappears

A speaker sings all the better when its cabinet stays silent. The Solstice 3 uses the DVAS system (Driver Vibration Absorption System): a perforated internal brace, pressed against the driver via a high-density EVA foam gasket, which channels vibrations from the cone before they reach the walls. The cabinet is made of high-density MDF, which partly explains the 12.9 kg shown on the scale. The rounded front edges reduce diffraction, those parasitic reflections on sharp corners that blur the stereo image. Around the drivers, silicone rings with sculpted patterns attenuate the first reflections, framed by a champagne-finish aluminum ring.

Four finishes and a custom plinth

The Solstice 3 comes in four finishes: Teak, Birch, White and Ash Black, with the two wood shades displaying vertical grain. Each speaker comes with a matching magnetic grille, which can be fitted and removed without visible screws. The plinth deserves a word: its base slots into the top plate of the S05 stand, the dedicated support, for a clean mechanical connection that extends the speaker’s lines. The S05 combines a profiled aluminum column with a glass base, with spikes and tips suited to the floor, and comes in Teak and Greige to match the speaker finishes.

Connection and amplification

With 90 dB sensitivity, the Solstice 3 needs only a few watts to play loud. Its nominal impedance of 8 ohms does not drop below 5.3 ohms, a comfortable load for almost all Hi-Fi amplifiers on the market, and it handles 90 watts RMS. Connection is via a single high-conductivity metal binding post, champagne finish: one set of terminals only, with no bi-wiring or bi-amping, reserved for the Solstice 8 in the range. Inside, the crossover is set at 2.8 kHz, with a second-order low-pass on the bass and a third-order high-pass on the treble, and the wiring is OFC copper.

In stereo as well as home theater

In a stereo system, the Solstice 3 highlights voices and acoustic instruments, the favored territory of Triangle’s cellulose cone, without limiting itself to one style: the brand describes it as comfortable across the full range of musical repertoires. The bookshelf format covers rooms from 10 to 35 m², on stands in a living room as well as on a shelf in a bedroom. In home theater, it handles the main left-right channel and is complemented by the sealed Solstice C3 center speaker, which shares the same 16 cm drivers to maintain tonal consistency between channels.

Technical Specifications

Overview

• Bookshelf speaker designed to offer the performance and sonic openness of a floorstanding speaker in a more compact format
• Design focused on neutrality, tonal accuracy, and excellent coherence across the entire sound spectrum

Acoustic configuration

• Type: bass-reflex bookshelf speaker
• Number of ways: 2
• Tweeter: 25 mm aluminum / magnesium dome TZ2540MG
• Midrange / woofer: 16 cm in natural cellulose pulp
• Bass-reflex port integrated into the base
• Single high-conductivity binding post

Performance

• Sensitivity: 90 dB
• Frequency response: 48 Hz – 22 kHz (+/- 3 dB)
• Power handling: 90 W RMS
• Nominal impedance: 8 Ω
• Minimum impedance: 5.3 Ω

Exclusive technologies

• Horn-loaded tweeter with optimized dispersion
• New-generation phase plug
• Midrange / woofer with new injected aluminum basket
• Cellulose cone with large radiating surface
• Reinforced internal structure with DVAS system
• High-density MDF cabinet
• Optimized acoustic diffraction thanks to rounded edges

Recommended use

• Listening area: 10 to 35 m²
• Ideal pairing with the Triangle S05 stand
• Hi-Fi and Home Cinema use
• Excellent reproduction of voices and acoustic instruments

Dimensions and weight

• Dimensions (W x H x D): 22.1 x 41.8 x 37 cm
• Unit weight: 12.9 kg