TPCBJM Tweeter better than TC 90 TD5 B? - diyAudio
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Old 10th November 2007, 06:59 AM   #1
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Default TPCBJM Tweeter better than TC 90 TD5 B?

specs for TPCBJM


25 mm inverted titanium dome tweeter
Video Shielded Shielded Video
Same size as TC 90 Same size as TC 90
One piece dome and surround with phase plug One piece dome and surround with phase plug
Titanium surround has damping on back side Titanium has surround damping on back side
20mm voice coil, aluminum bobbin, ferro fluid cooled 20 mm voice coil, aluminum bobbin, ferro fluid cooled
Requires different crossover design than TC90 see kit plans for details Requires different crossover design than TC90-see kit plans for details

Specifications:
Power = nominal 15 watt Power = nominal 15 watt
System power = 125 watt with 12 dB 2500 Hz crossover System = 125 watt power with 12 dB 2500 Hz crossover
Fs = 2120 Hz Fs = 2120 Hz
Qts = 2.0 Qts = 2.0
Sd = 0.1 cm^2 Sd = 0.1 cm ^ 2
Nominal impedance = 8 ohm Nominal = 8 ohm impedance
Zmin = 6.7 ohm Zmin = 6.7 ohm
Re = 5.85 ohm Re = 5.85 ohm
Le = 0.07 mH Le = 0.07 mH
Lvc = 2 mm Lvc = 2 mm
H gap = 3.0 mm H = 3.0 mm gap
Xmax = 0.5 mm under hung Xmax = 0.5 mm under hung
Sensitivity = 91.5 dB at 2.83 volt at 1 meter Sensitivity = 91.5 dB at 2.83 volt at 1 meter
Efficency = 89 dB at 1 watt at 1 meter Efficency = 89 dB at 1 watt at 1 meter

Cabinet cut out hole = 73 mm Cabinet hole cut out = 73 mm
Face Plate; square = 92 mm, corner radius = 30 mm, thickness = 5.2 mm Face Plate; square = 92 mm, corner radius = 30 mm, thickness = 5.2 mm
Depth = 43 mm Depth = 43 mm
Mounting Screws; # 8 Pan Head on 65 mm centers Mounting Screws; # 8 Pan Head on 65 mm centers
Weight = 0.65 kg Weight = 0.65 kg

Required Zobel network; Required Zobel network;
Resistor = 12 ohms Resistor = 12 ohms
Inductor = 2 mH Inductor = 2 mH
Capacitor = 3.9 uF Capacitor = 3.9 uF
Recommended Crossover; 3000 Hz, 12 dB Linkwitz-Riley into 6.5 ohms Recommended crossover; 3000 Hz, 12 dB Link joke-Riley into 6.5 ohms

(Quelle: Zalytron) (Source: Zalytron)


sorry, im not german these are just the only specs i found at all.


specs for the TC90TD5B http://zalytron.com/Specs/TC90TD5B.pdf

i dont know too much about tweeter specs, so if any one can help me choose id really really appreciate any input on this matter.
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Old 11th November 2007, 07:50 AM   #2
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bump?

perhaps a better question to have asked is how to read and understand tweeter specs?
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