[Matt__P]

I picked up a pair of these JBL's cheap. My question is how should i use them????
are they candidates for an OB?  or just a 3 cu ft sealed box?
I realize they wont play very low so a sub will be in order.
I was thinking maybe just mount them in the ceiling in the garage???
I have no idea. any help would be much appreciated

Thanks,

matt





Nominal Diameter
12" / 300mm
Impedance
8 Ohms
Frequency Response
60 Hz - 22kHz (-10dB)
Power Capacity (AES standard)
90 Watts
Crossover Frequency
2.7kHz
Dispersion   80°
Sensitivity (SPL)
97dB
Voice Coil Diameter
2" / 51mm
Voice Coil Material
2 Layer Round-Wound Copper
Diaphragm Material   Pure Titanium
Rec. Enclosure Volume
3 cu. ft./ 85 Liters
Net Weight
5.5 kg. / 12 lbs.

MOUNTING INFORMATION

Overall Diameter   12.25" / 311 mm
Baffle Cutout Diameter (front mount)   11" / 279mm
Bolt Circle Diameter    11.58" / 294mm
Overall Depth   7" / 175mm
THIELE-SMALL PARAMETERS

Resonant Frequency (fs)   72 Hz
Impedance (Re)   5.2 ohms
Coil Inductance (Le)   1.5mH
Mechanical Q (Qms)   4.2
Electrical Q (Qes)   .92
Total Q (Qts)   .75
Compliance Equivalent Vol. (Vas)   45 Liters/1.58cu. ft.
Voice Coil Overhang (Xmax)   6.4mm
Reference Efficiency   1.82%
Surface Area Of Cone (Sd)   .055
Pe (max)   100 Watts

[JLM]

Wow, I found a price of roughly $400 each (if my German can be trusted).

The Qts is 0.75, making them good candidates for open (or infinite) baffles.

The Vas is 1.6 cu. ft., so a rear volume of 7 - 16 cu. ft. would qualify as an infinite baffle.

The 97 dB/w/m efficiency with 90 watt rating means they'll reach very high sound pressure levels (very loud).

JBL has made quality professional drivers for a very long time.

These are way too nice for the garage (unless its full of million dollar cars).

I don't know how they sound, but I'd try sticking them in open baffles.  Ask the open baffle forum for ideas.