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Martin Audio F2B - Speakerplans.com Forums - Page 2
https://forum.speakerplans.com/martin-audio-f2b_topic2414_page2.html
Well, the F2B was really a 215 Mk3 redesigned to fit the F2 form factor. The prototype was known as a 215F. The speakers specified were the ATC PA100-375-Bass-LC-8ohm, badged as a Martin L1540. ATC type number decode: PA = PA range (as distinct from Studio) 100= voice coil diameter, 4". 375 (mm) = cone size, 15".
F2sys - martin-audio.com
https://martin-audio.com/downloads/datasheets/F2systemdatasheet.pdf
F2B and F2R have identical fly point locations and are thus able 10 fly at any position within a column. Columns are stabilised using a pull-up strap attached from the base of the bottom cabinet to the frame. The system has been stress tested by an ...
Martin Audio F2B - Speakerplans.com Forums - Page 1
https://forum.speakerplans.com/martin-audio-f2b_topic2414.html
Quote Reply Topic: Martin Audio F2B Posted: 18 August 2005 at 6:40am ... ceharden, jbl_man and i thought that our not quite martin 215 plans might be for the f2b but it turns out they are not. the f2b is an evolution of our beloved 215 mkIII as we understand it, now the rub. is there any chance that
martin-audio.com
https://static.martin-audio.com/downloads/userguides/F2_techmanual.pdf
F2T System alignment, including polarity reversal on the High and Vffibands, should be provided in the electronic crossover. Therefore when a complete system is phase checked, all elements will indicate "in- phase" if all connections are correct. r-2M r-2H F2B STAGE beymd Long tttow to cover Of ' Centre nll stage) covers STAGE downstage stack
Martin Audio - Freespeakerplans
https://www.freespeakerplans.com/downloads/cabinets/martin-audio
Community oriented DIY loudspeaker design plans, general resources downloads, chat and forum.
Martin Brother (Martin Audio Copies) - Free Speaker Plans
https://www.freespeakerplans.com/kunena/7-general-forum/10924-martin-brother-martin-audio-copies
Replied by jsg on topic Martin Brother (Martin Audio Copies) levyte357 wrote: What myself, and apparently a few others would like, is additional trap 15" BPH section to MT121, that will do 80-160hz @ average 103db sens.
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