Transcript
Exotic T35 X3-06
EXOTIC
The Exotic T35 is a classic dome midrange tweeter with high sensitivity and a smooth, extended frequency response. A coated fabric dome with integral surround manufactured by Dr. K. Müller in Germany ensures excellent performance and consistency. This supplier was among the first in the world to offer fabric dome diaphragms, and did produce the diaphragm for the famous 1.5” Dome Tweeter H087, developed by Seas in 1968. A high efficiency Alnico V ring magnet in a carefully designed system contributes to high sensitivity and low distortion. A large and well damped cavity in the pole ensures a low resonance frequency and smooth response. A generously underhung 35mm voice coil wound from copper-clad aluminum wire further enhances the sensitivity. Flexible lead-out wires and venting holes in the aluminum coil former help reduce noise to a minimum. A large diameter 7mm thick precision machined aluminum front plate with moderate horn loading ensures linear frequency response and represents an extremely stable platform for the magnet system and the moving parts.
100
50
95 90
40
SPL [dB]
80
30
75 70
20
65 60
Impedance [ohm]
85
10
55 50 100
0 1 000
10 000
Frequency [Hz] The frequency responses above show measured free field sound pressure in 0, 30, and 60 degrees, mounted in a 0.6m by 0.8m baffle. Input 2.83 Vrms, microphone distance 0.5m, normalized to SPL 1m. The impedance is measured without baffle using a 2V sine signal.
Nominal Impedance
6 Ohms
Voice Coil Resistance
4.6 Ohms
Recommended Frequency Range
1500 - 25000 Hz
Voice Coil Inductance
0.06 mH
Short Term Power Handling *
250 W
Force Factor
3.9 N/A
Long Term Power Handling *
100 W
Free Air Resonance
600 Hz
Characteristic Sensitivity (2.83V, 1m)
94 dB
Moving Mass
0.47 g
Voice Coil Diameter
35 mm
Effective Piston Area
11.9 cm2
Voice Coil Height
2.0 mm
Magnetic Gap Flux Density
1.46 T
Air Gap Height
3.0 mm
Magnet Weight
0.35 kg
Linear Coil Travel (p-p)
1.0 mm
Total Weight
0.91 kg
Dec 2008-1 RoHS compliant product
*IEC 268-5, via High Pass Butterworth Filter 2500Hz 12 dB/oct. SEAS reserves the right to change technical data www.seas.no
Exotic W8 X2-08
EXOTIC The Exotic W8 is an 8 inch woofer-midrange driver designed for smooth, wide frequency response, high sensitivity and low distortion.
The special paper cone is embedded with papyrus fibres to optimize stiffness and damping. A special foam rubber surround reduces mass by 40% compared to conventional rubber surrounds, resulting in higher sensitivity and excellent damping properties. Unlike most plastic foam materials, this material is stable and will offer decades of trouble-free operation. A new and proprietary spider design dramatically improves the performance of this critical suspension part. By combining an extremely open weave with a new resin formulation, all noises normally generated by the friction of the threads rubbing together are virtually eliminated. Additionally, the open weave is highly acoustically transparent, minimizing the reflections and resonances associated with conventional spider designs. A high temperature copper voice coil is wound on a rigid, non-conductive glass fibre former. High quality H2 lead-out wires eliminate noise due to roping and resonances. The magnet system uses an Alnico V ring magnet for high sensitivity and excellent stability. Massive copper rings above and below the magnet gap lower distortion due to eddy currents and flux modulation. A hand-turned phase plug made from ash offers optimal radiation conditions for the critical mid frequency band.
A stiff and stable injection moulded zinc basket keeps the critical components in perfect alignment. Generous windows both above and below the spider reduce sound reflection, air flow noise and cavity resonances to a minimum. 110
200
100
SPL [dB]
95 90
130 120 110
85
100 90 80 70 60 50 40 30
80 75 70 65 60 10
Impedance [ohm]
190 180 170 160 150 140
105
20 10 0 100
1 000
10 000
Frequency [Hz] The frequency responses above show measured free field sound pressure in 0, 30, and 60 degrees angle using a 60L closed box. Input 2.83 VRMS, microphone distance 0.5m, normalized to SPL 1m.The dotted line is a calculated response in infinite baffle based on the parameters given for this specific driver. The impedance is measured in free air without baffle using a 2V sine signal.
Nominal Impedance
8 Ohms
Voice Coil Resistance
6.0 Ohms
Recommended Frequency Range
30 - 3000 Hz
Voice Coil Inductance
0.43 mH
Short Term Power Handling *
250 W
Force Factor
9.2 N/A
Long Term Power Handling *
100 W
Free Air Resonance
36 Hz
Characteristic Sensitivity (2,83V, 1m)
94 dB
Moving Mass
13.9 g
Voice Coil Diameter
39 mm
Air Load Mass In IEC Baffle
1.8 g
Voice Coil Height
12 mm
Suspension Compliance
1.2 mm/N
Air Gap Height
6 mm
Suspension Mechanical Resistance
0.7 Ns/m
Linear Coil Travel (p-p)
6 mm
Effective Piston Area
212 cm2
Maximum Coil Travel (p-p)
22 mm
VAS
78 Litres
Magnetic Gap Flux Density
1.25 T
QMS
5.1
Magnet Weight
0.8 kg
QES
0.25
Total Weight
2.5 kg
QTS
0.24
Dec 2008-1 RoHS compliant product
*IEC 268-5 SEAS reserves the right to change technical data
XW22-01 www.seas.no
