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View Full Version : 218F spec sheets?



qxlxp
10-23-2006, 09:39 AM
does anyone have the spec sheets for this driver?

edgewound
10-23-2006, 10:05 AM
No published spec sheet that I know of.

That's the 2 ohm woofer from the LSR28P powered monitor.

8" Differential Drive Transducer*, 2" voice coil.

qxlxp
10-24-2006, 09:25 PM
no, it is not published. i was hoping someone might have a copy and be willing to email me a copy.

RCAguy
05-21-2023, 01:42 PM
Note that the LSR28P's front panel LED indicator does more than indicate over-modulation. It also glows red for undisclosed faults, such as a blown tweeter's open coil presenting no load to its amplifier.

RCAguy
05-23-2023, 06:31 AM
...as requested. Note the LSR28P dropped shortly after the LSR32, the first JBL based on the LSR principles (Floyd Toole), and featured "Spinorama" analysis, flat estimated room response, and low distortion up to 102dB (raised 20dB in THD charts in the attached).