Member
Joined 2009
Paid Member
I bought a Crest Pro 3301 for $200 shipped. I only bought it because cosmetically, it's in fantastic shape. Turns out it works, and I don't see any evidence of it ever being opened before.
What's amazing to me is that despite being from 1994 (best I can tell), the inside is almost clean enough to eat off of. There's also no evidence that it's ever been rack-mounted before. Makes me suspect that it was either a spare that saw little use, or was used only occasionally in a studio.
Planning to do a couple of modifications to the peak limiter circuit, maybe a quieter fan (though it really isn't all that loud) and some bias adjustments. THD is pretty much pinned at 0.02% regardless of load- that makes me wonder if maybe the THD is dominated by the NE5517-based peak limiter circuit. I'll have to do some more digging to know for sure.
Should make a nice little amp for driving studio monitors / home stereo. It's the smallest amplifier from that series, rated at about 230W into 8 ohms- so it isn't ridiculous. Compared to most pro amps, I think the cosmetic design is rather tasteful.
Pro amps are hit and miss, IMO, but I generally like the design of this one. It looks like Crest did their homework and designed a good amplifier.
What's amazing to me is that despite being from 1994 (best I can tell), the inside is almost clean enough to eat off of. There's also no evidence that it's ever been rack-mounted before. Makes me suspect that it was either a spare that saw little use, or was used only occasionally in a studio.
Planning to do a couple of modifications to the peak limiter circuit, maybe a quieter fan (though it really isn't all that loud) and some bias adjustments. THD is pretty much pinned at 0.02% regardless of load- that makes me wonder if maybe the THD is dominated by the NE5517-based peak limiter circuit. I'll have to do some more digging to know for sure.
Should make a nice little amp for driving studio monitors / home stereo. It's the smallest amplifier from that series, rated at about 230W into 8 ohms- so it isn't ridiculous. Compared to most pro amps, I think the cosmetic design is rather tasteful.
Pro amps are hit and miss, IMO, but I generally like the design of this one. It looks like Crest did their homework and designed a good amplifier.
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What could Jordan make that could be of interest to readers of this forum? OK, maybe older readers of this forum? Google tells me that they still exist. Pricey stuff though.
Try sticking "JX92S" into the search box on diyAudio and see what you find.
I'm surprised you don't. AFAIK the JX-92S group buy was one of the largest this forum ever had.
I had heard OF them on this forum. I have not heard or seen them since they are / were beyond my price range.
I got a pair of Tectonic 3.5" BMR drivers - more my speed price wise. Supposedly has wide dispersion. Want to try those Japanese pipes having the driver facing straight up, using these. Unsure how it's supposed to work, when I'm used to an "on-axis" speaker, but it'll be entertaining to see. Yah - more speakers and the paint isnt even dry on my new TABAQs with the W5-2143s.
I also got a Dayton DAEFX25FHE exciter, to see if it can be used as a contact microphone to measure cabinet wall resonance. What's $13 against curiosity?
I also got a Dayton DAEFX25FHE exciter, to see if it can be used as a contact microphone to measure cabinet wall resonance. What's $13 against curiosity?
A little Googling goes a long way. Ted Jordan is a legend in the industry. Mark Fenlon, the person who started Mark Audio used to work with/for Ted and started his own line after the Jordan company was sold to a Swedish firm.
Ted Jordan 1929-2016
Ted Jordan 1929-2016
This weekend is amp component procurement day
Yesterday and today have been parts procurement days for a sequencer project for my Eurorack music synthesizer. Orders to Mouser and Digikey went in this morning. I ordered the board set directly from the designer yesterday.
Super Sixteen PCB and Panel set w/ microcontroller
– Extralife Instruments
I almost bit on some surplus Exar XR2206 chips, but decided that I have too many half finished projects already. These are hard to find. Good for making a function generator....or a VCO for your synth.
G25507 - EXAR XR-2206CP Monolithic Function Generator
The Jordan drivers were pretty popular maybe 12 or 13 years ago, then they seemed to vanish. Google found their current web site with a pair of 600 GBP drivers.
welcome - E J Jordan Designs
Member
Joined 2009
Paid Member
that’s cool!
I went to eBay and typed in Crest Pro. I got toothpaste. I added power amplifier and got ‘Moviola’. WTF is this? sounds like something off of Seinfeld.
