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Supravox

215 RTF 64 Bi-cone Broadband Loudspeaker 25W / 98dB / 8 Ohms

215 RTF 64 Bi-cone Broadband Loudspeaker 25W / 98dB / 8 Ohms

€299,00 EUR
€299,00 EUR
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CLASSIC Series

The goal of the Classic Series is to maintain Supravox's philosophy of developing high-efficiency full-range loudspeakers. We are working to further expand the useful bandwidth for the highest possible performance, while constantly improving the definition, quality and linearity of response. From diameter 135 to 380 mm, the audiophile can satisfy his passion.

Coming from the 215 RTF, a legendary loudspeaker, wide band and high efficiency, the bicone model offers you in the field of exceptional installation a listening experience of the warmest and exceptional coherence.

Thanks to its very wide bandwidth, it can be mounted in one-way speakers without filtering. Handcrafted, equipped with a powerful magnetic circuit, a very light mobile assembly and made up of an exponential membrane, it reaches a level of reproduction precision worthy of the best installations.

Mounted in TQWT, resonator or rear horn enclosures the response ranges from 50Hz up to 18000Hz at ±3dB. It is already a reference among many audiophiles who consider it a wonderful benchmark for the adjustment of multi-channel multi-amplification systems.

This loudspeaker also exists without bicone for music lovers wishing to switch to 2 ways by adding a tweeter. It then gains 1 dB in efficiency and limits its bandwidth to 10kHz in the treble.


Frequency response from 200Hz to 20 kHz on axis


Frequency response from 200Hz to 20kHz at 30°


Frequency response from 200Hz to 20kHz at 60°


1/3 octave frequency response


impulse response


Waterfall


Impedance
TECHNICAL CHARACTERISTICS :

Below are the 2020 parameters, measured using AES2-1984-r2003.

Sensitivity (2.83V/1m): 97,7dB
Sensitivity (1W/1m): 96,8 dB
Bandwidth : 40Hz-20KHz
Impedance: 8 Oh
Suspension : 3 ply paper
Linear excursion: +/- 2,3 mm
Magnet : ferrite 120mm
Magnetic field : 1,25 T
Salad bowl: Aluminum
HP diameter: 224/237 mm
Mounting hole distance: 224mm
Enclosure drilling diameter: 212mm
HP depth: 100mm
HP weight: 2,3 kg
Fs : 57 Hz
Re : 6.5 Ohms
And 1 kHz : 0,43 mH
Qts : 0,46
Question: 0,53
Qms : 7,6
You: 80 L
With : 6,48
Mms : 8,9 g
Sd : 254,5cm²
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High-Precision Craftsmanship: Made in France

Each Supravox loudspeaker inherits expertise born in the 1950s. From the iconic 215 RTF 64 to today's innovations, our loudspeakers are entirely hand-assembled in our workshop just outside Paris. A French standard of perfection that defies time to deliver pure musical emotion.

  • The Artisan's Touch

    At the heart of our factory on the outskirts of Paris, each voice coil is hand-wound with micrometric tension. We use ultra-light supports and high-purity conductors to minimize moving mass. It is this extreme lightness that gives our loudspeakers their legendary responsiveness and their ability to reveal the finest details.

  • The Hand and the Spirit

    Each loudspeaker is a unique piece, assembled by craftsmen whose expertise has been passed down for decades. The precision of the centering and the tension of the suspensions are adjusted by touch, a sensitivity that no machine can replicate. This artisanal assembly guarantees perfect fluidity of movement and exceptional longevity.

  • Exponential Paper Cones

    Our cones are made from a proprietary recipe of long-fiber paper, manually processed to achieve an ideal balance of rigidity and damping. The exponential profile, pioneered by Supravox, ensures homogeneous sound diffusion. The result is an organic timbre and strikingly realistic vocal presence.

  • Magnetic Alchemy

    Beyond the simple magnet, we master energy. In our factory on the outskirts of Paris, we forge Alnico 5 motors and Field Coil systems capable of saturating the air gap with absolute precision. This controlled power offers lightning-fast dynamics and almost zero distortion, hallmarks of Supravox's high sensitivity.

  • Signal Purity

    Perfection often comes from subtraction. By designing full-range loudspeakers capable of covering most of the spectrum, we eliminate the need for crossover filters. The signal travels directly from your amplifier to the cone, preserving perfect phase coherence and a holographic soundstage of complete transparency.

  • Tested for Eternity

    Each unit leaving our workshops undergoes a rigorous testing protocol: frequency analysis, impedance measurement, and tactile inspection of the excursion. But the final verdict belongs to the human ear. Each loudspeaker is validated by our technicians, ensuring that your investment will remain an exceptional instrument for decades to come.

Heritage Collection