I hear that disease is called "Trigger Finger"
Oldmics
I hear that disease is called "Trigger Finger"
Oldmics
Ken,
I use a 6260 and a 6230 in a bi-amp rack, along with a 5235, to drive one of my studio monitor pairs. I also have a similar set up using a Crown PS-400 and PS-200. I find the JBL/ Ureis to be a bit stronger (louder) and sound fine, but the Crowns seem to have slighty less noise and seem a little more refined. ? I believe the protection circuits in the Crowns are a little more advanced.
I like all of these because they are big, heavy, stable and overlooked by most people today.
Tom
Thanks for the info guys, will let you know if I get them.
Nice to hear from you Tom.
Ken
Hello
The largest Urie amp had speaker sense line input jacks
in the form of BNC connectors.
These were for and second set of lines going to the
speaker and connecting to the main speaker cable binding post
or connectors.
The amp would then detect any voltage generated by the speaker
s voice coils and compensate for it, makeing for a very high
damping factor.
Velodyne powered sub woofers had a similar idea only they
used a velocity transducer fastened to the back of the speakers cone.
I have an old Urie catalog, I'll dig it up and see what else the
say about the sense lines.
If anyone wanted the info for a Urie amp I could scan the pages
and e-mail them to you.
Thanks
Mike Caldwell
I have a pair of 6290 amps and currently use them to power four BassTech7 ServoDrive concert subs that weigh in at almost a half ton. They are a conservatively rated amp with a conventional power supply, four rack spaces and hefty at 60 pounds or so. The fan is a bit noisy but cools the heatsinks very well. With a slew rate of 50 volts per microsecond it's an exceptional value on the used market, going for $200 to $350 bucks. Only Chevin and Lab Gruppen can match that spec and those amps are like a bazillion bucks. The 6290's are a true 600 watts per side with a 4 ohm load and sound great. With a conventional PS they retain enough reserve power and won't crap out if the AC line voltage gets a little weird. They are big and heavy but if you have the rack space probably the best deal in old power amps.
Did you realize that this thread is SIX YEARS OLD????
I had a pair of 6290's a while ago, 10+ years ago, great amps very punchy. The fans were anoying and they sucked a lot of power when turned on. I had a line just for them in my electrical pannel. When turned on all at once from a remote pannel they will trip breakers in your house.
Over the past 6 years I have become significantly less open to the idea of buying vintage electronics. Of the basement full of older amps and other devices I have and have had like these older speakers we love, almost none of it actually works up to original specs.
As John pointed out on another thread... the amp may being "working", but sometimes it really isn't.
Widget
I use a 6290, driving low end in a biamped Altec set. More than enough power, of course. I have a replacement fan sitting on a shelf as the older stock fans are a bit loud. I'm thinking the newer fan will be much quieter.
JBL's own product literature states that the 62xx series are underrated as to the amount of actual power available. I've never tested mine but with that long row of Sanken's in there I don't doubt it has a lot of power to spare.
Well, well, here's a thread that's back from the dead.
This little discussion caused me to do a little research on the 6230 and 6260. They appear to be identical, spec-wise, to the Synthesis® S150 and S300 amps I got recently, which were made by UREI. Facelift, anyone?
Out.
Vintage gear and being up to spec aside, you might find this interesting...
Several years ago Zilch lent me a small 62XX that compared to the Hafler P3000. I compared them. Running them full range on my mini monitors, the Hafler P3000 was significantly better sounding. I suppose it also cost significantly more. Now that they are both dead lines the prices are likely more in line with each other.
Widget
The famous Empire Leicester Square, screen #1 at London's West End, used them for its original, JBL 13KW THX sound system during the late 1980’s though to late 1990’s. The amps where removed and replaced with QSC and Martin Audio loudspeakers during 2000. About 5 years later it was all-revamped back to JBL and Crown power amplifiers and killer 56KW THX certification.
More over at this thread: The Empire Leicester Square London a JBL installation!
http://www.audioheritage.org/vbulletin/showthread.php?t=13057
There are currently 4 users browsing this thread. (0 members and 4 guests)