Focal IC 706V ST
Overview
The Focal IC 706V ST is an in-ceiling speaker designed to deliver a stereo signal from a single ceiling-mounted unit. As a model from the French Chorus 700V range, it features dual adjustable tweeters and a dual voice coil woofer, allowing both left and right channels to be reproduced by a single speaker. Suitable for small spaces and specific configurations, it offers a practical solution while retaining the signature Focal sound characteristics.
Advanced Technical Design
The IC 706V ST is built on a 2-way acoustic architecture specifically adapted for stereo playback. The 165 mm mid-bass driver uses Polyglass technology—a cellulose fiber cone reinforced with a layer of glass microbeads. This design provides both rigidity and lightness, minimizing distortion while maintaining a dynamic response.
The main technical feature is the woofer’s dual voice coil system, which allows the left and right channel signals to be handled separately. This approach preserves stereo separation without the usual compromises of mono solutions.
The high-frequency range is handled by two 25 mm TNV (TNV: Inverted Dome Tweeter) tweeters made from an aluminum-magnesium alloy. This Focal signature technology inverts the traditional dome geometry, optimizing the connection with the voice coil and reducing harmonic distortion. The tweeters are adjustable, allowing you to direct the sound according to installation constraints.
Integrated Focal Technologies
The Polyglass cone is one of the distinctive technical elements of this speaker. This composite material combines the mechanical properties of cellulose fiber with the damping effect of glass microbeads on the surface. The result is an optimal balance between rigidity, lightness, and control of unwanted resonances.
The crossover system uses Focal’s OPC (Optimum Phase Crossover) technology. This approach prioritizes phase coherence between the different drivers, improving sound imaging accuracy and naturalness. The 2,400 Hz crossover point ensures a smooth transition between the mid-bass and high-frequency ranges.
The Polyswitch protection system deserves special mention. This self-resetting circuit breaker continuously monitors the temperature of the coils and cuts power in case of overheating. Unlike traditional fuses, the Polyswitch automatically resets once the temperature drops, eliminating the need for maintenance.
Installation and Compatibility
Installing the IC 706V ST requires a circular cutout of 221 mm in diameter and a mounting depth of 99 mm. These relatively compact dimensions make it easy to integrate into most standard suspended ceilings.
The mounting system uses clamps that deploy behind the ceiling, ensuring secure installation without the need for specialized tools. The visible frame, with a diameter of 253 mm, can be painted to match your décor.
Amplifier compatibility covers a wide range, from 25 to 120 watts, with a nominal impedance of 2 × 8 ohms. This dual configuration requires a stereo amplifier capable of handling 4-ohm loads per channel when both coils are connected in parallel.
The adjustable tweeters offer attenuation settings of -3 dB, 0 dB, and +3 dB, allowing you to tailor the frequency response to the room’s acoustics and your listening preferences.
Documentation
French
Technical Specifications
Acoustic System
- Type: 2-way in-ceiling speaker
- Drivers:
- Woofer/midrange: Polyglass 165 mm, dual voice coil
- Tweeter: Dual adjustable inverted dome TNV aluminum/magnesium (Al/Mg) 25 mm
Audio Performance
- Recommended amplifier power: 25 - 120 W
- Frequency response: 65 Hz - 28 kHz (± 3 dB)
- Sensitivity: 89 dB (2.83 V / 1 m)
- Nominal impedance: 2 × 8 Ω
- Crossover frequency: 2,400 Hz
Protection
- Protection with automatic reset circuit breaker (Polyswitch)
Dimensions and Weight
- Frame: Ø 253 × 96 mm
- Cutout: Ø 221 mm
- Mounting depth: 99 mm
- Unit weight: 2 kg
Frequently Asked Questions
What is the difference between the IC 706V and the IC 706V ST?
The IC 706V ST features dual tweeters and a dual voice coil woofer, enabling stereo playback from a single speaker. The standard IC 706V is a traditional mono speaker with a single tweeter and single voice coil woofer.
What types of ceilings can this speaker be installed in?
The IC 706V ST can be installed in any standard suspended ceiling with at least 99 mm of available depth. It is suitable for plasterboard, wood, or composite material ceilings, provided the structure can support the 2 kg weight.
Can the IC 706V ST be used in a bathroom?
Yes, the speaker is resistant to water splashes and suitable for humid environments such as bathrooms. However, you must comply with current electrical installation standards according to safety zones.
How do you connect the speaker for stereo playback?
The speaker has four terminals corresponding to the left and right channels. Each channel has its own woofer and tweeter. Connection is made directly from a stereo amplifier, observing correct polarity.
What amplifier power should be used?
The recommended power ranges from 25 to 120 watts per channel. An amplifier of 40 to 60 watts is generally sufficient for normal home use. The 2 × 8 ohm impedance requires an amplifier capable of handling 4-ohm loads.
How do you adjust the directional tweeters?
The tweeters have a three-position attenuation setting: -3 dB, 0 dB, and +3 dB. The 0 dB position suits most installations. The -3 dB setting reduces treble in highly reverberant rooms, while +3 dB boosts it in more muted spaces.
Is the speaker suitable for a home theater system?
The IC 706V ST can be used as a surround speaker in a simplified home theater system or as a stereo solution for music sources. It does not replace a dedicated center speaker for dialogue but is suitable for setups where space limits the number of speakers.
- Eco-contribution included in the sale price.
- GTIN / EAN: 3544056691036