Audison TH 3.0 II Voce Thesis 3" Midrange Speaker and Grill (Pair)

The human auditory system processes the range of medium frequencies with maximum sensitivity and selectivity because it makes the voice intelligible from the rest of the audio spectrum. The R & D team started from this simple principle to design from scratch the TH 3.0 II VOCE, dedicated to this fundamental range of frequencies, with the simple as well as ambitious target of extreme linearity, in order not to add or hide anything of the signal reproduced, enhancing in this way every nuance.

ULTRA HIGH CONTROL
The extremely powerful custom N38 H-grade Neodymium magnet ensures unmatched control of the mobile group and the aluminium ring nullifies the intermodulation distortion otherwise generated at peak excursions.

EXTREME LINEARITY
Through finite element simulation (FEM) the Audison R & D team has optimized the break-up point between cone/surround, obtaining an ultra-linear frequency response in the mid-range. The generous 30 mm CCAR (Copper Clad Aluminum Ribbon) voice coil wound with flat wire gives the TH 3.0 II Voce an extraordinary excursion and minimizes at the same time the cone non-linearity. 

TPX® CONETH 3 II 
Voce membrane is made of TPX®, a transparent material that ensures frequency response linearity leaving the speaker interior in full view.

Features:

• 30,5 mm mobile voice coil in CCAR (Copper Clad Aluminum Ribbon)
  wound with flat wire to maximize the force factor and heat dissipation. 
• Aluminium demodulation ring which linearizes the high excursion
  intermodulation distortion, canceling any sound colorations.
• N38 “H-grade neodymium magnet included in the voice coil to obtain
  superior control of the mobile crew and superior thermal stability. 
• Motor geometry designed using finite element simulation software to
  optimize efficiency by concentrating the magnetic field in the gap. 
• Membrane made of TPX®, a transparent material that reduces
  frequency response irregularities and provides a view of the inside of
  the speaker. 
• Membrane geometry designed by simulation software to obtain
  homogeneous directivity.
• Optimized cone/surround break-up with extensive simulations to
  linearize the response at medium frequencies.
• Basket made of a single piece of die-cast aluminium with four pairs of
  spokes for maximum rigidity without slowing down the air flow. 
• Suspension and spider with very high excursion, optimized with
  simulations of the multi-physical behavior of the speaker.
• eID technology for the traceability of TH 3.0 II Item from production to
  purchase.

Specs

Technical Specs
Nominal diameter    70 mm (3 in)
Impedance    4 Ohm
Power Handling - Peak    110 W
Power Handling - Continuous    55 W
Sensitivity    85.6 dB
Frequency Response    110 ÷ 5700 Hz
Voice Coil Ø    30.5 mm
Magnet Material    SPECIAL NEODYMIUM N38H
Magnet size D x d x h    29 x 6 x 8 mm (in.)
Voice Coil Material    CCAP - COPPER CLAD ALUMINIUM RIBBON
Xmax    3.3 mm (0.13 in)

Electric-acoustic Specs
Re    3.4 Ohm
Fs    100 Hz
Le    0.18 mH
Vas    1.01 l (0.036 ft)
Mms    4.3 g (0.152 oz)
Cms    0.59 mm/N
BL    4.2 T•m
Qts    0.48
Qes    0,52
Qms    5.5

General
Weight    0.25 kg, .55 lbs