Audison Thesis TH 6.5 II Sax - 6.5" 17CM 150W RMS Mid-Bass Woofers Speakers (Pair)

THESIS TH 6.5 II SAX 

WOOFER | 300 W PEAK POWER | 165 MM | 4 OHM

THESIS

Transparency, a direct inheritance of the HV venti, is the principle that inspired the creation of Thesis speakers, born with the ambitious goal of giving voice to the pure musical message of Thesis electronics. The search for the best acoustic result was based on overcoming the intrinsic limits of traditional loudspeakers. Through a finite element simulation software (FEM) conceived by the Audison R&D team, a mathematical model was developed, which they used to create, with an intense prototyping activity, the ideal transducer.

TOTAL TRANSPARENCY

The TH 6.5 II Sax was born from a blank sheet with the aim of overcoming all the limits dictated by compromise-oriented design choices. This philosophy allowed us to obtain extreme performance and a design projected into the future, faithful to the inspiring principle of maximum transparency of the musical message. 

MAXIMUM LINEARITY, MINIMUM INDUCTANCE, EXCELLENT VENTILATION

The magnetic circuit uses a N48 H-grade Neodymium magnet that releases a very high quantity of energy and is ultra stable in temperature, ensuring an unparalleled dynamic. The geometry of the magnetic group has been optimized through a finite element simulation software to maximize efficiency by concentrating the magnetic field in the gap. A great deal of research has been carried out to reduce the modulation of the voice coil inductance by magnetically saturating the motor pole and using an aluminium short-circuit ring that also allows a greater extension towards the mid frequencies.

• 50 mm mobile voice coil in CCAR (Copper Clad Aluminum Ribbon) wound with flat wire to maximize the force factor and heat dissipation.
• Low inductance of the mobile voice coil to optimize the emission in medium-high band (2-3 kHz).
• N48 “H-grade neodymium magnet with superb thermal stability to guarantee an optimal dynamic reserve in every situation.
• Magnetic group geometry designed using finite element simulation software to maximize efficiency by concentrating the magnetic field in the gap.
• Membrane is made of TPX®, a transparent material that reduces the frequency response irregularities in the mid-high band, leaving the speaker interior in full view.
• Membrane geometry was designed using simulation software, to obtain a smooth emission over all the listening angles.
• Basket is made of a single piece of die-cast aluminium featuring four pairs of spokes to optimize heat transfer, nullify turbulent airflows and ensure maximum structural rigidity.
• Hi-excursion suspension and spider, optimized with simulations of the loudspeaker multi-physical behavior.
• eID technology provides TH 6.5 II traceability starting from the manufacturing stage up to the owner.

Product Features:

• Size    165 mm
• Power Handling - Peak    300 W
• Power Handling - Continuous    150 W
• Impedance    4 Ohm
• Frequency Response    40 ÷ 4500 Hz
• Magnet Material    NEODYMIUM
• Voice Coil Ø    50 mm
• Voice Coil Material    CCAP - COPPER CLAD ALLUMINIUM RIBBON
• Woofer Qes    0,47
• Cone Material    TPX®
• Xmax    5.4 mm
• D    130 mm
• Re    3.8 Ohm
• Fs    55 Hz
• Vas    8.6 l
• Mms    24.2 g
• Cms    0.35 mm/N
• BL    8.2 T•m
• Qms    5.3
• Qts    0.43
• Le Standard    0.43 mH
• Spl    87 dB
• Weight    1.25 kg