Bygga låda till JBL-element

[Mikael Blohm]

Hej.
Jag har ett JBL-element som heter E-145 liggandes och jag ska bygga en portad låda till den, ska ha lådan som en enkel 15 till min elbas.
Vet någon var man kan hitta ett beräkningsprogram för JBL så jag kan få min låda "rätt"?
Har letat på nätet utan att hitta nåt jag förstod mig på..

Mvh M.

[Magnus Gustafsson]

Här hittar du Thiele & Small-parametrar för ditt element:

http://www.thielesmall.com/database.asp" onclick="window.open(this.href);return false;

Här har du formelsamling för lådberäkning:

http://www.tanker.se/lidstrom/loudsp.htm" onclick="window.open(this.href);return false;

/M

Brand JBL
Model E145-8
Description The E145 has the most natural, uncolored sound that JBL has ever created in a bass instrument loudspeaker. Its low distortion characteristics and pure tonal quality make it the ideal choice for keyboards, organs, bass guitars, or P.A. systems. The E145 delivers pure bass notes at thunderous levels with the high efficiency and power capacity that musicians have come to expect from JBL loudspeakers.
Range / type Woofer
Typical use Musical instrument. Organ, synthesizer low frequency reinforcement
Recomended enclosure
Series E, musical instruments
Manufacturer
Order nr
Production status Active 2003
Nom. diamerer [inch] 15
Vas [Liters] 275
Qts 0.25
Qes 0.26
Qms 6
Fs [Hz] 35
Sensitivity [dB] 98
Max Power [W] 300
Power definition Continous program
Lower freq [Hz] 35
Upper freq [Hz] 2500
Rec. Filter freq [Hz]
xmax [mm] 7
Moving mass [g]
Disp area [m2] 0.089
Disp Vol [cm3]
xdamage [mm]
Air gap [mm]
Coil height [mm]
Coil diameter [mm] 102
Cms [mm/N]
Rms [N*s/m]
Magnet weight [gr] 10.3
Magnet height [mm]
Magnet diameter [mm]
Magnet material -
Re [ohm] 5.7
Z [ohm] 8
L [mH] 1.6
Bl [Tm]
Magnetic flux [Wb]
Flux density [T] 0.95
Outer diam. [mm] 380
Bolt circle [mm]
Nr of bolts [Nr]
Cutout [mm] 355
Weight [Kg] 13
Height [mm]
Depth [mm] 160
Driver volume [Liters]
Frequency SPL / Z
Home page [URL] http://www.jblpro.com" onclick="window.open(this.href);return false;
Data sheet [URL}
Enterd by -
Date reviewed 12/21/2003
Date added 12/21/2003

[Mikael Blohm]

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