GD70
Lunatic Member
Go here. Great info here.
Glenn
http://sportsbil.com/ads/l-910-specs.pdf
http://sportsbil.com/ads/l-910-ser2-specs.pdf
ADS-910's
- Thread starter GD70
- Start date
Glenn
http://sportsbil.com/ads/l-910-specs.pdf
http://sportsbil.com/ads/l-910-ser2-specs.pdf
Commodore999
Member
Thanks, Glenn. Looking at the sheets quickly, it seems the series I used a 1" tweeter and the series 2 a 3/4" tweeter. Most of the other measurements seem the same. (I haven't had the time to compare all of the smaller ones.) Did I miss something? I believe my 910s to be series II. I've seen a photo of a crossover that looks different than my crossover. I'm guessing that the crossover in the photo is series I. Going from my memory, there seem to be a few capacitors missing from the crossover in the photo.
GD70
Lunatic Member
Sure, just passing on the info given to me when I got mine.
One interesting thing is mine are early series 1's and have the 3/4 inch tweeters. I know they are original, definitely odd according to the spec sheets. They were extremely difficult to remove when I pulled them to send to Richard So for refurbishing.
My crossovers look different than the one pictured. There's pics of mine and several others earlier in the thread.
Glenn
One interesting thing is mine are early series 1's and have the 3/4 inch tweeters. I know they are original, definitely odd according to the spec sheets. They were extremely difficult to remove when I pulled them to send to Richard So for refurbishing.
My crossovers look different than the one pictured. There's pics of mine and several others earlier in the thread.
Glenn
Blue Shadow
Waiting for Vintage Gear from this century
Can you help us out with a page number? Or do we need to go through this entire thread again? Probably worth it.
GD70
Lunatic Member
Post #55 page 3 and page 4 post #61.
Blue Shadow
Waiting for Vintage Gear from this century
Thanks, off to page three
It also looks like you are missing the single/bi/tri-amp card that fits in the horizontal slot above the fuses. Do you have a card? I doubt the speaker would make any noise without one.
Commodore, you have a really nice ADS collection. I have always liked the look of the XX30 series speakers (which is probably counter to most folks who like towers).
Commodore999
Member
Thanks, Glenn. I looked up your crossover photos on page 3 and they match the crossovers in my 910s. I have no idea if my speakers are Series I or II. (My speakers are in storage while I am living overseas, so I can't measure the tweeter.) But looking at the ADS spec sheets, the only real difference seems to be the tweeter size. Maybe the tweeter switch from a 1" on series I to a 3/4" on series II was the reason for the series division.
I would guess that the crossover in my photo a few comments above was from a series I, since it has less capacitors and looks less crowded. ( My theory being that for the series II, ADS updated and improved the crossover, requiring more components.) But as I said, it's a guess and I'm sure a knowledgeable ex-employee will happen along this thread to set us straight.
Another question for Glenn- is there a marking on your speakers that says series I? If not, how do you know? The spec sheets you linked to call the series I "ADS 910" in the copy and the series II spec sheet copy calls them "ADS L910-SERIES II". I'm guessing the series I were not marked as such, when produced.
That's enough speculation by me for now. And thanks to Glenn for all his help trying to figure my series I vs series II questions. My questions were asked with all due respect. I'm not challenging any comments made, just trying to use this group's speakers and knowledge to figure out more background on the 910s.
Any experts out there want to pass on some knowledge?
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Commodore999
Member
Thanks. I'm an ADS fan from my first pair in 1984- L520s, I think. I'm working my way through the ADS TOTL speakers. Now I just need to find a pair of 1590v2.
will d
Active Member
Looking and reading about the ADS L-2030's, my utopian dream. Here's a fun google for ya, world's most expensive home theater system, the guys name is Jeremy Kipnis and he runs Kipnis studio or sumpin like dat. Anyway, he does home installs for the rich and shameless ( Sorry lethal weapon, for stealing that line ) so he decided to do his crib, $6 million buckaroo's on his ****. 30 McIntosh amps 2 mark levinson's 3 Crown macro's 18 subwoofers ( I think his speakers are snell's. I won't list the rest, but check it out, there's pictures also. As the wicked witch in oz said, what a world. Will D.
Blue Shadow
Waiting for Vintage Gear from this century
I can't believe it. You said:
"I'm sure a knowledgeable ex-employee will happen along this thread to set us straight." That would be soundmotor and jdurbin1 maybe others.
"Another question for Glenn"
"Any experts out there want to pass on some knowledge?"
Starting at the top with an ex-employee, dropping down to an ADS fan with lots of ads postings and then finally accepting input from any experts. All that leaves me OUT. I just have some, have researched a bit and have some opinions that haven't been refuted, including some info from a former employee.
The 910 to 910/2 change might be similar to the later 1590 to 1590/2 change. It included a tweeter change using the smaller one in the later speaker for better dispersion and higher frequency response, to 27kHz. Additionally, the tweeter was now polyswitch protected and the fuses were removed as the midrange was different and higher power handling. That polyswitch change to the crossover might have been all that was done, IDK, you have me answering that and I'm below the third and lowest level of knowledge you were looking for.
The designation of the first series is not done with a series I. Most didn't do this as they didn't know there was going to be a /2. I expect that is the case with the 910 also. DCM has the TW1A but the first TW was just that not a TW1.
Now on to those 1590/2 you are looking for, do you want the series I cabinet, with the cutout on the back that fits the PA-1 amplifier or do you want the later cabinet that is flat and fully finished? ADS made the change to the /2 before they ran out of series I cabinets. Good luck with your search.
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GD70
Lunatic Member
I know mine are early by the serial numbers. Also the cabinets have walnut veneer on the backs, the woofers have smaller dust caps.
Hope this is somewhat helpful!
Cheers, Glenn
Commodore, what are your serial #s? In the picture of your crossover in post 525 it looks like it might be 01010?
Mine are 025XX, which are close to Glenns, and I have the 1" tweet and small woofer dust caps, but my crossover has different components than the one in post 525. Also, mine has a bi-amp card and the LED card installed.
Mine are 025XX, which are close to Glenns, and I have the 1" tweet and small woofer dust caps, but my crossover has different components than the one in post 525. Also, mine has a bi-amp card and the LED card installed.
Blue, I consider myself a semi-noob, but you look like an expert.
Blue Shadow
Waiting for Vintage Gear from this century
Thanks but there is a lot that I don't know that I would if I had gotten interested in ADS well before the oughts (2000-2009) when I first started picking em up off CL. Had a few, got a great pair and now down to 2½ pair (mids and woofs from the L630 is the ½), one set in the main rig.
Commodore999
Member
Thanks, Blue Shadow. That helps explain things more and I agree that the tweeter change maybe the difference between the two series.
I have no desire to run the PA-1 amps. Either speaker cab would be fine with me, but if given a choice, I'd take the conventional cabinet.
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Commodore999
Member
Thanks, Glenn. That does help. I wish I had my speakers handy so I could compare the differences you note.
I thought it would be a simple answer to tell the two series apart but I guess it is a subtle thing.
Commodore999
Member
Yes, your crossover looks the same as mine. I have the LEDs and the single amp and bi-amp cards, too. Same placement of the capacitors.
The crossover in post #525 is not mine. Just a photo from an acquaintance. I don't know the number for sure, but I agree it looks like 1010. Does that number make it an early pair?
I don't know the serial numbers on my pair. They are in storage, while I'm living overseas. Sure wish I had taken a few photos before packing them up.
The answer is hard to find than I expected. Seems like there's a bunch of mixed components on either series, so I doubt we'll ever be able to come up with a clear dividing line.
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Blue Shadow
Waiting for Vintage Gear from this century
I believe that if you had a 910 in front of you and a 910/2 next to you, you could look at them and once you see the nameplate you would know exactly which is which. The 1590 has a /2 following the number on the L1590/2 speakers. Really easy to see, well not really. I don't know the L1590 or the L1590/2 in the early box but the nameplate is on the bottom of the L1590/2 making it hard to see since the speaker weighs 100 pounds. Should be a lot easier on the 910 but might not be a /2. Someone has to have a pair to let us know.
Commodore999
Member
DS
Yes, I've seen photos where ADS has called the speaker L1530/2, for example. I have not seen that on the 910 series but it may be that all the 910s I've seen are series I.
Or ADS might not have marked the series II in an easy to find way. It might be that they noted the change on the specs, but put no marking on the speakers. That could be the reason we are having a hard time telling one series from the other.