The old PA vs HI FI loudspeaker debate again.... - Page 3 - diyAudio
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Old 8th May 2010, 12:37 AM   #21
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PA can mean, and often does mean screechy harsh midrange. But I've been totally sold on the old technology for years. My speakers have 3 drivers, two of them are 15"s, all of them have corrugated textile surrounds and none of them ever move more than 2mm. And 2mm is LOUD.
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Old 8th May 2010, 01:11 AM   #22
soekris is offline soekris  Denmark
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I have always liked the great PA speakers for Hi-Fi, have a theory about them being more linear due to necesserity.... And there is no substitute for displacement * excursion when playing deep bass at high levels.

Have a set consisting of Fane Studio 15Bass, Studio 8M & ST-5022, built 25 years ago and still going strong despite plenty of abuse, including cat claws and being stored unheated. They're great for playing the music I like the best, Dire Straits, at the level I prefer, realistic....

But I will replace them soon with the best PA speakers I can find, NOS JBL 2235H bought on ebay years ago, NOS JBL 2404H from JBL's garage sale years ago and probably PHL 1660 mids, to be purchased soon.... Should then be good for the rest of my life :-)

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Old 8th May 2010, 01:18 AM   #23
Pano is offline Pano  United States
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Quote:
Originally Posted by InclinedPlane View Post
PA can mean, and often does mean screechy harsh midrange.
So true, so true. Unfortunate, but true. No matter what the drivers. Comes from trying to get too much volume out of the drivers. Yeah, OK, and bad design too.
But mostly over driving.
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Old 8th May 2010, 01:57 AM   #24
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Help me, now, what JBL PA products used 2235H...?
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Old 8th May 2010, 02:02 AM   #25
soekris is offline soekris  Denmark
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Ok, the JBL 2235H was more targeting studio monitors.... Maybe I should say PA/Studio speakers as they overlap. On my older days I don't need that high SPL anymore :-)

Soren

Last edited by soekris; 8th May 2010 at 02:05 AM.
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Old 8th May 2010, 11:47 AM   #26
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Default High Watt PA

These SP2's will take 300 W RMS each, (45V PP) but I would have to have someone push the start button on the CD player while I listened from the industrial park across the street before I listened to them at that level. I bought the CS800 amp with the speakers, am actually using the DJoffe modified ST120 at about 2v PP, maybe 5v on Joan Jett.(Do you want to *****? BOMP!!!!). If I had to reseat the input connector on the CS800 to get continuity with the power on it would blow my eardrums out. I'm really afraid to hook up the CS800. At these house power levels, I find the mid-range of the SP2 quite smooth, which is weird since it is done with a 2" horn driver and a 1200 Hz crossover. Good highs all over the room. Great easy listening vocals, great soft baroque music, belly shaking sound when I play R&R loud.
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Old 8th May 2010, 01:32 PM   #27
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Quote:
Originally Posted by soekris View Post
Ok, the JBL 2235H was more targeting studio monitors.... Maybe I should say PA/Studio speakers as they overlap. On my older days I don't need that high SPL anymore :-)

Soren
PA and studio speakers overlap?
I've been to a number of studios and none of them used PA speakers or drivers. The only time I noticed any overlap between the two was in the case of Tannoy but they overlap just as much with domestic speakers.
Court Audio (they provided the famed Pink Floyd PA) used Tannoy drivers, the same ones as were used for studio monitors and home hifi. Other than that I have never noticed any overlap for a long time ie since the early '80s at least.
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Old 8th May 2010, 01:59 PM   #28
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Originally Posted by soekris View Post
And there is no substitute for displacement * excursion when playing deep bass at high levels.
Or even at lower levels. I do notice more ease in bass between running the 8 8" open baffles to the bottom or limit them to 70Hz and power on the 12 12" open baffle subwoofers for below 70Hz.
Even the soundstage seems a little wider and more enveloping.

Of course, the louder it gets the better the adrenaline rush as bass still sounds tight and clean. ;-)
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Old 8th May 2010, 06:25 PM   #29
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Other than that I have never noticed any overlap for a long time ie since the early '80s at least.
JBL is currently using essentially the same compression drivers in sound reinforcement and high-end consumer audio. They are, however, taming the diaphragms with damping in the consumer product variants....
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Old 9th May 2010, 11:54 AM   #30
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And JBLs range of studio monitors does not feature any compression drivers at all and hasn't for a long time.
So while there is an overlap between PA/Domestic there is no overlap between PA/Studio.
Which was exactly my point.
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