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Atlantic Technology owner's thread. - Page 27

post #781 of 865
I am really enjoying my 4400 system with the 642sub. I also added an Outlaw EX sub.
In all honesty, with the size of my theater, I should have went with the 6200 series.
I would suggest for your room size, the 6200 system.

Quote:
Originally Posted by bambady View Post

Hi,

How do you like the 4400 system?

Question to all experts,

My Home theater (under construction) is 11 x 22 x 8, and I am considering the following for a 7.1 system, mostly for movies:

- 4400 L, C, R
- IWTS-14SR as the sides (not enough room for on-wall speakers)
- AT 642 (or SVS or Velodyne)

questions
- what to pick for rear L/R considering the medium room size
- Is the 14SR sides sufficient?

thanks.
post #782 of 865
Quote:
Originally Posted by pokekevin View Post

ID = Internet Direct like SVS PSA and HSU etc!

Hmm 11 x 22 seems to be a big room (compared to mine!) and I'm worried the 4400 might not cut it for you. I would say maybe push your budget up for a 6200 which uses 6.5 drivers over the 5.25 drivers that comes with the 4400s. But if you don't really listen loud you might be able to get away with the 4400s.

Also do you like the sound of Bipoles/Dipoles? That's something to consider before you purchase your surrounds!

The others will chime in soon on their thoughts.

I see, thanks, yes, I have an SVS sub upstairs and like it a lot, also familiar with Hsu research subs.

Room sizing I went with the Atlantic website which notes:
M Medium Room with 1800-2500 cu. ft.
S-M Small to Medium Room with less than 1800 cu. ft.

So mine 11 x 22 x 8 = 1936 is just on the border of small-medium while the 4400 is rated for larger rooms up to 5000 cu.ft.

Good point about Bipole/dipole I am going to a local listening room to hear these one more time.
post #783 of 865
Quote:
Originally Posted by jeffw69 View Post

I am really enjoying my 4400 system with the 642sub. I also added an Outlaw EX sub.
In all honesty, with the size of my theater, I should have went with the 6200 series.
I would suggest for your room size, the 6200 system.

Thank you, pokekevin also suggested same, though I thought my room was on the smaller side at 1936 cu-ft, per tthe AT site:Room sizing I went with the Atlantic website which notes:
M Medium Room with 1800-2500 cu. ft.
S-M Small to Medium Room with less than 1800 cu. ft.

So mine 11 x 22 x 8 = 1936 is just on the border of small-medium while the 4400 is rated for larger rooms up to 5000 cu.ft.

Good point about Bipole/dipole I am going to a local listening room to hear these one more time.

I will look in to 6200s next.
post #784 of 865
Can the 4400 center channel pivot base be removed? I'm thinking about this speaker package, but It will be a bit too tall for my Pioneer Kuro that is stand mounted. If I can't remove the pivot, I'll have to decide how to safely "life" the plasma to make it fit. If I have to raise the plasma, is there any products designed for this or just use some wood?

Thanks.
post #785 of 865
Quote:
Originally Posted by krazyscotsman View Post

Can the 4400 center channel pivot base be removed? I'm thinking about this speaker package, but It will be a bit too tall for my Pioneer Kuro that is stand mounted. If I can't remove the pivot, I'll have to decide how to safely "life" the plasma to make it fit. If I have to raise the plasma, is there any products designed for this or just use some wood?

Thanks.

If it's anything like the base for my 450 which it does look like than yea it looks like it can be removed.

I just raised my TV using wood that was painted black. Turned out actually pretty good:D
post #786 of 865
Thanks. I'm leaning heavily towards the 4400s.
post #787 of 865
Yes, it can be removed. The 4400 center channel has a separate base plate that the speaker sits on and you can pivot up or down to aim speaker.
post #788 of 865
I finally had AVS send me my speakers. The basement isn't quite done, but I couldn't wait any longer. They kindly held them at their store for a month for me. I hooked up the three 8200e LR's in my living room, just sitting on the floor (hardly from ideal). I ran the MCACC on my pioneer elite vsx-32 and threw Iron man 2 into the PS3. It's amazing how detailed these speakers are. I'm hearing things I've never heard before. In the scene at the race track when the first car gets cut, you see it flip in the air and the rear tire hits the ground first with a burst of air coming out. You can actually hear the air come out of the tire. I never even knew that sound effect was there! Another example is the chain on the iron man suitcase. You can actually hear it rattle as they move around. I paired these speakers with my SVS PC13-Ultra and it is possibly the best sound I have ever heard. I would put them up against my parents M&K S150's and dual MX350's any day of the week. If you have the budget for the 8200e's, go for it. You will not regret it one bit.
post #789 of 865
Quote:
Originally Posted by xeonicxpression View Post

I finally had AVS send me my speakers. The basement isn't quite done, but I couldn't wait any longer. They kindly held them at their store for a month for me. I hooked up the three 8200e LR's in my living room, just sitting on the floor (hardly from ideal). I ran the MCACC on my pioneer elite vsx-32 and threw Iron man 2 into the PS3. It's amazing how detailed these speakers are. I'm hearing things I've never heard before. In the scene at the race track when the first car gets cut, you see it flip in the air and the rear tire hits the ground first with a burst of air coming out. You can actually hear the air come out of the tire. I never even knew that sound effect was there! Another example is the chain on the iron man suitcase. You can actually hear it rattle as they move around. I paired these speakers with my SVS PC13-Ultra and it is possibly the best sound I have ever heard. I would put them up against my parents M&K S150's and dual MX350's any day of the week. If you have the budget for the 8200e's, go for it. You will not regret it one bit.

Glad to hear that shipping was kind to your speakers. Thank you for purchasing through AVS. Enjoy. smile.gif
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post #790 of 865
Quote:
Originally Posted by AV Science Sales 5 View Post

Glad to hear that shipping was kind to your speakers. Thank you for purchasing through AVS. Enjoy. smile.gif

You know the funny thing is I think the shipping was fine, but when they made the speakers they didn't get some of the drivers seated in perfectly. They seem to work fine though. I'm going to register for the 5 year warranty, so I 'm not too worried about it. Looks like they could just use a little in the quality control department. The speakers are double box and one had a hole that I didn't see until unboxing that went through both boxes! Thankfully the speaker came out unscathed. Thanks for all of your help Mike. It's been great doing business with you. I still have a few more items I need and will definitely be looking to you guys again.
post #791 of 865
Got a line on a THX 350 5.0 system. No sub for 700. Is that a worthy upgrade towards my 2400 system?
How does the 4200 or 6200 stack up to the 350THX? Looking for something under 2k even less is better and the 4200 and 350 can be had for not a wide margin in price. All assuming these are truly noticable upgrades to my 2400...or should i save off until i can snag a 8200e which is roughly 4500 used without sub.

I know these aren't the most loved questions..but really looking for help from someone who has heard several lines of AT stuff...I want to upgrade from my 2400 but unsure how appreciable of an upgrade these older THX systems would be or not.
post #792 of 865
Quote:
Originally Posted by sburnett View Post

Got a line on a THX 350 5.0 system. No sub for 700. Is that a worthy upgrade towards my 2400 system?
How does the 4200 or 6200 stack up to the 350THX? Looking for something under 2k even less is better and the 4200 and 350 can be had for not a wide margin in price. All assuming these are truly noticable upgrades to my 2400...or should i save off until i can snag a 8200e which is roughly 4500 used without sub.

I know these aren't the most loved questions..but really looking for help from someone who has heard several lines of AT stuff...I want to upgrade from my 2400 but unsure how appreciable of an upgrade these older THX systems would be or not.

Well looks like my bid ended up being the winning bid...hate when that accidentally happens.
I will let you know how the 350THX compares to the 2400, 250 and 270THX.rolleyes.gif
post #793 of 865
Anyone who sees a set of the 450THX come up, I am in the market.
Edited by sburnett - 4/23/13 at 9:05pm
post #794 of 865
Quote:
Originally Posted by sburnett View Post

Well looks like my bid ended up being the winning bid...hate when that accidentally happens.
I will let you know how the 350THX compares to the 2400, 250 and 270THX.rolleyes.gif


So, how does the 350THX stack up compared to the 2400, 250 and 270THX? confused.gif

Inquiring minds want to know! wink.gif


...Glenn smile.gif
post #795 of 865
Quote:
Originally Posted by Glenn Baumann View Post

So, how does the 350THX stack up compared to the 2400, 250 and 270THX? confused.gif

Inquiring minds want to know! wink.gif


...Glenn smile.gif
Actually!
I just got a set of the 370THX with Pedestals for the surrounds and towers (Insane find if you ask me, but I had to drive 3 hours to get them)!!! SO I am doing 9.1 (switchable between rears/heights) with 5.1 370, 350 rears and 270 heights right now.
I also just got my REW (Room EQ Wizard) Mic and setup working so I have been making graphs..Cause I am as curious as you! I will have a big ol' writeup coming this weekend hopefully where I test them all and take readings.
I will say this, I was going through my old posts about whether I should get the 2200 last year and someone kept pushing me to look out for a older THX set...as you can see, they were right! I love them! For about the price I scored the 7.0 2400/2200 sets I managed to get a 5.1 370...the 350 may or may not have been better.
I'll try my hardest to post up my findings this weekend!

Regards,

Shane
post #796 of 865
NOTE - If this is considered too long of a post for this kind of thread, I am happy to create a new one.

I have accumulated a lot of gear, these tests are done using the LR speaker from Atlantic Technology's System 250, 2200, 2400, Compact Theater Two, 350THX, and 370THX.
Another note - I am currently selling the 2200 5.0 and 250 5.0 set. For very very cheap, as you can see I have way more than I can use so I am offloading. See classifieds.
Alright - Here are measurements and notes I made as measuring. I am not a audio genius. I love to buy speakers and try them out and see what I think. I have a basic understanding of how it all works. If terms etc are confusing, I am happy to try to explain more. I don't claim to know everything and am in a constant state of trying to learn more. The notes were taking quickly as the first things that came to mind as I was A/B'ing different sets and I tried to turn those into readable words. If it seems incoherent, that is why. I am still learning to express my thoughts on listening in a way that is as objective as I can be as a fallible human.
These were some of my first uses of REW and measurement microphones.
I used the following equipment:
UMIK-1 USB Microphone - Calibrated
Samsung Chronos 7 Laptop on board sound card no calibration
Sherwood RX4503 Stereo Receiver
Graphs are 1/3 smoothing, It's easier to read and they seem to offer plenty of information to get the picture.
Objective measurements were done with the microphone and subjective measurements were done by A/B'ing with the Sherwood comparing LR speakers on these.
Speakers were placed on a homemade stand made of MDF and solid pine, with a drawer rubber liner thing in between speaker and stand.
Measurements were made on-axis at about 3' away from speaker. I did not put any acoustic panels in the room for measuring, this is my office/playing with speakers room. 12'x12'x8' door closed. I did try making walls around the measuring area with acoustic panels but figured unless i made the walls 8" thick it wouldn't have a positive impact. So I left the room reverberant.
I needed a way to show graphs from each speaker, so I show a graph for each set of comparisons. If I did each speaker in one graph it would be hard to read. If you have a combination I didn't cover, let me know.

A note about the 350/370 graphs vs the others. You see the steep roll offs. The 350 had a much more obvious sound difference from this, it almost sounds hollow in music. While playing high resolution movies you don't feel that way but in typical content, without surround sound listening modes, it will feel hollow.
Where the 350 tends to sound very very very warm (maybe too much) as obviously seen in the graph, I also had a similar sound from a pair of Jamo THX ONE speakers I had, which were also a part of the original THX certified speakers out. That very big dip in the high frequencies could be an early THX design, I don't know. I did test both LR and Center of the 350 and each had a similar graph and roll off that low. The 370 Roll off is not quite as low but does happen pretty sharply. (Don't recommend using ReEQ with THX speakers!) And the 370 sound much better than the 350 in general and I highly recommend them!
EDIT: As I study the graphs more and more, EVEN though I tried the LC and R 350's and each had a really big drop above 7-10khz I am not positive they are good. The impedance seems good when measuring with a meter and there is no obvious sounds that make me think they have gone bad, also the cones on the mid ranges are moving and there is SOME output up high so I imagine the tweeter is good. I don't know if they are malfunctioning or not...Would be cool if AT would chime in. It's just such a weird graph compared to ALL those other AT sets???


CTS2 Vs. 250
CTS2 feels a bit more musical but with less dynamics than the 250...the 250 gets a bit punchier where the CTS2 is...more open and spacious while retaining a bit more resolution. The 250 almost has a slightly condensed sound, not as spacious


2200 Vs 250
The 2200 is FAR more resolved in the high end than the 250, the female voice is front and center, that difference in the chart where the 250 has a dip and the 2200 has a peak must be the reason. I have just started to use measuring equip and its fascinating to see cause and effect. The 2200 chart shows it to play low but i felt as though the 250 had more output in the lower midbass region, like the lowest string of an acoustic guitar. Where the 2200 was more resolved, it sounded very brighter than the 250. Given the enhanced resolution, I still prefer the 2200.


2200 Vs 2400
Where the 2200 has that obvious forward vocals that is very in your face and dynamic, I feel the 2400 calms it down just a hair, sounds more balanced between highs and lows. It basically feels like they took the small drawback of the 2200 and fixed it. I suppose this could be due to the newer tweeter or crossover the 2400 got, whatever it is it is just a bit more balanced. Either way, its these forward dynamics WITH great resolution that makes these two speakers so incredibly wonderful for movies. So lifelike as when the movie shows someone knocking on a door and your pets turn their heads or run towards your own door.


2400 Vs 370
This was a bad idea, it showed me everything wrong with the 2400 haha.
The 370 is more dynamic, full, balanced, loud and invisible than the 2400. It is so much better that I am about this close to convincing myself I NEED a 8200 set so I can have the 370 sound with 2400 newer technology and materials.
As I was A/B'ing the two sets, I had a bottle of water in my hand, as I switched to 370 all of a sudden the bottle was vibrating. It's clear the 370 is a far better speaker (not just because of the bottle) and I cannot believe I got a 5.1 set for the price of my 7.0 2200/2400 combo. I also cannot believe this stuff is so hard to resell.
NOTE_GRAPH SAYS 2200 - IS 2400 AS SEEN IN THE LEGEND


2400 Vs Compact Theater 2
This is a hard call. Especially since I only have one LR of the CTS2 system. Doing an A/B of that and a 2400LR my thoughts are that the CTS2 had more midbass and invisibility, like the speaker was less obvious and the 2400 had better dynamics and impact. They were both very clear and clean sounding. The CTS was a bit warmer. Given I love the sound of warmer speakers it would be very hard to decide between these two, except that I know if it was for music only I would want the CTS2, if it was for movies, I would probably want the dynamics of the 2400


2400 vs 350
When I first switched from the 2400 to 350 5.1 sets in my living room, my first and only real impression was that at high volumes (-8db+) on movies, the 350 retained high clarity and low distortion with reference playing. The 2400 will not play as loud and clean as the 350 so take that for what it is worth when deciding between the two. Keep in mind, my room is 5000cuft, with a listening area of 2400cuft. So, in a bedroom sized listening room the 2400 is likely awesome. If I could convince myself I needed surround sound in my bedroom, I may actually go with the 2400 over my 350 set. Also keep in mind when looking at the 350, you get some different designs built in for the THX certification that offer some positive for surround sound applications.


In the end, my honest opinion, given all speakers and having had full setups of most of these systems running at some point. Including the musical and surround sound experiences I have had, here is my opinion in a list format.
1. 370THX
2. 350THX
3. 2400/Compact Theater 2 (Given a bedroom-ish sized movie space, the CTS2 is incredible bang for buck used if you could ever find a set)
4. 2200/250 - Very different sounds but both very good. The 2200 is much like the 2400 with a bit more forward dynamics. Where the 250 has a bit more balanced or warmer geared sound. The 250 Surrounds have the SAME woofer as the 350 Surrounds, though they can't play as loud and may have different crossover points that has to count for something. The 2200 surrounds are the same as the 2400 surround and are way awesome as a 5.1. I would likely pick the 2200 over the 250 as a full system just because of looks and size of drivers etc. The 250 won't get as loud and dynamic but at used set prices its incredible bang for buck and if you want a bedroom system on the cheap its a killer deal.

Here are some pics of the mic placement and speakers, the 370 looks moved but that is because I took the pic after measurement and listening. And there is only one pic of 2200/2400 cause they look the same so....





Edited by shaneb0422 - 5/19/13 at 5:14pm
post #797 of 865
Definitely a read! Well done!

Still curious to see how a 370 compares to a 450.
post #798 of 865
Nice write up. There is definitely something wrong with your 350. That ultra steep roll off in the highs tells me you have a bad crossover or driver, I would check that out. Easiest is to pull out the driver and check the leads to see if they are connected, then check the terminals of the driver itself for continuity. If those are both good then start looking at your crossover. I had a bad crossover in my 453c and Paul at AT refurbed it for me really cheap. It just needed new caps.
post #799 of 865
Quote:
Originally Posted by flyng_fool View Post

Nice write up. There is definitely something wrong with your 350. That ultra steep roll off in the highs tells me you have a bad crossover or driver, I would check that out. Easiest is to pull out the driver and check the leads to see if they are connected, then check the terminals of the driver itself for continuity. If those are both good then start looking at your crossover. I had a bad crossover in my 453c and Paul at AT refurbed it for me really cheap. It just needed new caps.

Does look like a bad tweeter.

You can get those on the cheap from ebay.
post #800 of 865
Quote:
Originally Posted by pokekevin View Post

Definitely a read! Well done!

Still curious to see how a 370 compares to a 450.
Me Too!!! I would kill for a 450e set, I love the gloss black. Or even a set that was something other than black! But I am sure that is so rare I will never see one for sale.
I will say this...given the extensive digging I have done, I want to get my hands on a 450 and a 4.5 set so I can take the guts out of them and a 370 set see whats what.

Also a note about the graphs. I measured a Paradigm Mini Monitor and JBL Pro Cinema 8340A (From a commercial movie theater) and the Paradigm had a slightly similar response to the 2400 (definitely differences) but similar "go for flat" look. Wheres the JBL Pro (THX Cinema Certified, 8" or 10" woofer and horn loaded) Had a slightly bumpier graph similar to the 370. The low end was not smooth and the high end had a roll off as well.
Take that for what it is worth, but it was interesting to find it not as flat in-room as some of the cheaper AT stuff, also that the 370 had similar characteristics.

I also see the similarities in all the graph and can't help but wonder how much of that is room....though I guess without those similarities the speaker would be mostly flat right? I'm still understanding in-room response and house curve etc...so not sure what I think here. I guess that I put each speaker in the exact same place to measure IS the reason the measurements are good...?

And where would I get a replacement tweeter on eBay? Or do you mean a different brand.
Edited by shaneb0422 - 5/20/13 at 12:33pm
post #801 of 865
Well I popped the tweeter-mid array out of one of the 350s and they are showing their age. All four corners cracked UNscrewing it. Not cool.
But there was a lead pulled off and I'm 90 percent sure it wasn't from pulling the array from the enclosure. So I suppose all three could be that way. I just hate to watch close crack up too. Part of me was going to sell them but after fixing tweeters and breaking corners it will be harder to sell yet I may not want to cause they could sound waaayyy better now. Blah.
Oh and sorry for the sock.
post #802 of 865
You might be able to get a new plastic face piece from AT. Send them an email and see what they say. Good to know it was just a loose wire.
post #803 of 865
Anyone out there with an 8200e 5.2 or 7.2 setup? I'm trying to match 2 subs with the 8200e's in a dedicated HT room of around 2300 cu. ft. I'm budgeting for $2500-$3000. Thanks in advance!
post #804 of 865
Quote:
Originally Posted by tvolle View Post

Anyone out there with an 8200e 5.2 or 7.2 setup? I'm trying to match 2 subs with the 8200e's in a dedicated HT room of around 2300 cu. ft. I'm budgeting for $2500-$3000. Thanks in advance!

I'm not sure what you mean by "matching" two subs--unless you want to buy AT subs. Or do you want the subs to match the finish of the LRC?

As for me, with my 8200e system 11.2 system, I use 2 PB-13 Ultras in gloss black. And thus they match my towers quite nicely. wink.gif
post #805 of 865
I've had both an SVS PB 13 Ultra and a seaton submersive HP.

It really depends on what kind of sound you want. If you're mostly home theater and want the feel of out of control explosions, go with the PB -13 Ultra.

If you do home theater but must have accurate bass for music, then get the submersive.

Too bad there isn't a good way to have both.
post #806 of 865
Quote:
Originally Posted by Rob Greer View Post

I'm not sure what you mean by "matching" two subs--unless you want to buy AT subs. Or do you want the subs to match the finish of the LRC?

As for me, with my 8200e system 11.2 system, I use 2 PB-13 Ultras in gloss black. And thus they match my towers quite nicely. wink.gif

Oh, my fault. I was not asking about aesthetics. I am putting at least one (if not both) subs behind a false wall, so I am trying to "marry" subs to 8200e's. I plan to use the HT 80% of the time for movies and only about 20% for music. The room is a sealed and dedicated man-cave.

Thanks for your quick input, Rob and JimP! I have been looking at both PB-13s and the submersive (although my budget only allows for one submersive).
post #807 of 865
I think I blew out 3 of the 4 drivers on a pair of 1400 sr-z height speakers -

I recently bought a set of used 1400 sr-z speakers for use as height speakers to supplement my 8200e system. Yesterday, I hooked them up for the first time and after less than 2 hrs of use started having issues.

First, the driver in the right speaker developed a crackling, scratchy sound which I would assume means it is blown. These speakers originally had one driver punctured, which I replaced before using, so I swapped out the crackling driver with the punctured one to make sure the driver was the issue. When I removed the driver, the magnet was hot and the cabinet inside had a burning smell. On the removed driver, I tried pushing the cone in with my fingers to see if there was any audible scratching sound but heard nothing.

After swapping drivers, I re-started the music and found that the right speaker now sounded fine. However, the left speaker was now also crackling from both of it's drivers. One of which was the new replacement driver I had just installed.

So, it seems in a very short amount of time, I damaged 3 of the 4 drivers. I've owned several different sets of Atlantic Tech speakers over the past 15 years and never blown/damaged a driver before. I was playing the system loud, but nothing that should have been pushing any speakers to the limit (about -4 db on the volume).

What would cause these speakers to blow out so easily...crossover settings, too much amp power, etc.?

Any ideas? Reluctant to order replacement drivers since I'm sure this would happen again in the current configuration.


Details on my setup -

3 8200e LR for left, right and center. 4 8200e SR for surrounds and 1400 sr-z for heights.

The 1400 sr-z are powered by two channels of a Emotiva UPA 500 (rated 80 watts/channel at 8 ohms).

Crossover for 1400 srz set at 110 hz. They have a rated frequency response down to 110 hz...maybe I had it set too low and overworked them?

Pre-amp is a Marantz AV7005.

Audyssey set the channel levels fot the 1400 srz heights to +1 db compared to -6 db for 8200e front left and right.

Speaker specs -

Woofer - (2) 3 ½” Poly-treated full-range with HFAR**
Frequency Response - 110Hz – 20kHz ±3dB
Nominal Impedance - 8 ohms
Crossover Frequency - 200Hz Hi-pass on one driver
Sensitivity - 89dB
Recommended Amplifier Power - 10 – 125 Watts RMS
Edited by DigitalJackson - 6/16/13 at 8:21am
post #808 of 865
Contact Jason Marcure
Product Development Engineer
Atlantic Technology International, Corp.
343 Vanderbilt Ave.
Norwood, MA 02062

Will send his tel # via PM
post #809 of 865
I have the 8200e l/c/r ans surrounds. I use the 4400 l/r for the back speakers. I love these speakers and only use them for home theatre. I use the pioneer sc-09tx reciever to power them and they sound great. The room is treated and always listen in THX mode
post #810 of 865
Received a support response from Jason Marcure regarding my 1400 sr-z speaker issues this morning. Apparently, my "listening habits" are too much for these speakers. Disappointing that a set of speakers that retails for $450 would blow out so easily. I only paid $150 for mine used, but pretty much wasted money. His support response below -

"Sorry to hear about your speaker issues. The 1400SRz has been successfully used as a height speaker in 8200 based systems by us and other companies at shows. However, you may be experiencing a mix match issue. The 1400SRz is our smallest surround speaker while the 8200 system comprises our largest system. The burning and crackling you describe tells me the height channels should be turned way down. The height channel contains no direct info, it's all ambiance.

Your listening habits may also be too much for the little 1400SRz. You may need a full sized 4400SR or 8200eSR."

Quote:
Originally Posted by DigitalJackson View Post

I think I blew out 3 of the 4 drivers on a pair of 1400 sr-z height speakers -

I recently bought a set of used 1400 sr-z speakers for use as height speakers to supplement my 8200e system. Yesterday, I hooked them up for the first time and after less than 2 hrs of use started having issues.

First, the driver in the right speaker developed a crackling, scratchy sound which I would assume means it is blown. These speakers originally had one driver punctured, which I replaced before using, so I swapped out the crackling driver with the punctured one to make sure the driver was the issue. When I removed the driver, the magnet was hot and the cabinet inside had a burning smell. On the removed driver, I tried pushing the cone in with my fingers to see if there was any audible scratching sound but heard nothing.

After swapping drivers, I re-started the music and found that the right speaker now sounded fine. However, the left speaker was now also crackling from both of it's drivers. One of which was the new replacement driver I had just installed.

So, it seems in a very short amount of time, I damaged 3 of the 4 drivers. I've owned several different sets of Atlantic Tech speakers over the past 15 years and never blown/damaged a driver before. I was playing the system loud, but nothing that should have been pushing any speakers to the limit (about -4 db on the volume).

What would cause these speakers to blow out so easily...crossover settings, too much amp power, etc.?

Any ideas? Reluctant to order replacement drivers since I'm sure this would happen again in the current configuration.
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