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Sorry about late reply.
No room corrections or DSP for my home system. (I dont like it)
Summit has good sub bass tuning. I have used it. (-2, -6dB)
The sound is little dead in high notes, not 10dB or something like that. I have tried some different amplifiers, and it helps.
Also I like the twist of sound what the spikes makes.. Slowly it gets better and better (or I start to like it)
I try to make proper RTA whit miniDSP mic.
 
I have no inside knowledge as to how difficult or expensive it is for ML to continue to be tooled up to make panels for older speakers. But I too am happy with their decision to continue doing so--particularly since they have no full range ESL in current production, which are my preference. It would be nice to see them revive the CLS line. The CLX was apparently expensive to make, and too expensive for me to afford.

I do appreciate the importance of economic considerations to a company's survival. I do not want to see ML go the way of Audio Research.
 
Sorry about late reply.
No room corrections or DSP for my home system. (I dont like it)
Summit has good sub bass tuning. I have used it. (-2, -6dB)
The sound is little dead in high notes, not 10dB or something like that. I have tried some different amplifiers, and it helps.
Also I like the twist of sound what the spikes makes.. Slowly it gets better and better (or I start to like it)
I try to make proper RTA whit miniDSP mic.
Here is my overal SPL response.. Like I feel missing high notes. 1/6 smoothing. mic was (about) in listening spot.
avg summit_kuuntelu.jpg
 
If the panels are bad it is obvious - there will be very little high frequency audio volume. The speaker will sound boomy and muffled.

If you want to be more scientific, you can use REW software to measure the frequency response. The Summit has a crossover at 270Hz. If the panels are bad and need replacing you will see the frequency response drop by over 10dB above 270Hz.
here is RTA
 

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Here is my overal SPL response.. Like I feel missing high notes. 1/6 smoothing. mic was (about) in listening spot.
Yes, that's a pretty nasty high-end sag. And that notch at 68Hz is pretty severe. A room mode, no doubt, so placement likely will affect it.

A room corrector can likely fix both issues.
 
Here is my overal SPL response.. Like I feel missing high notes. 1/6 smoothing. mic was (about) in listening spot.View attachment 24666

Above about 600Hz your SPL is about 10dB down (65dB vs 75dB) so the panels are likely degraded. Room correction can fix it by boosting the level by 10dB then reducing frequencies below around 500Hz. It will be a lot more demanding on your amp.
 
No DSP for me.. low notes (room cancelations) I can fix by modifications, it is next challenge..
Bigger problem is -10dB high notes..
I contacted the ML distributor/service.
 
No DSP for me.. low notes (room cancelations) I can fix by modifications, it is next challenge..
Bigger problem is -10dB high notes..
I contacted the ML distributor/service.
I may, but have not yet, set up Dirac on my new Emotiva XMC-2 but I agree that I wouldn't use DSP to fix ailing panels. That plus a nasty room suck-out is a sure way to blow up an amp. Just bite the bullet and buy them. On the other hand, I'm in a decent position to be able to afford new panels. When you do decide to bite the bullet, you're still a few months away from fixing the problem though, generously, ML does not bill you until they are ready.
 
I may, but have not yet, set up Dirac on my new Emotiva XMC-2 but I agree that I wouldn't use DSP to fix ailing panels. That plus a nasty room suck-out is a sure way to blow up an amp. Just bite the bullet and buy them. On the other hand, I'm in a decent position to be able to afford new panels. When you do decide to bite the bullet, you're still a few months away from fixing the problem though, generously, ML does not bill you until they are ready.
Yeah, it took about 3 months or so for my panels and you don't pay until they are shipped. Mine were down about 10 dB as well. Audyssey made them sound ok, but then they lacked bass. I was probably taxing the hell out of my Aragon amp.
 
Well….continued support is FICTION, at least for me. Only 6 years ago I bought a new Subwoofer Dynamo 700w which now bit the dust, needs a new amp WHICH THEY NO LONGER HAVE OR WILL ORDER MORE!!! Only 6 years old and now is garbage! You call that support!!! They offered to check if they can give me a discount on a similar model, WHY SHOULD I TRUST THEM AGAIN!!! I will NEVER buy from them again! BUYER BEWARE!!!
 
Well….continued support is FICTION, at least for me. Only 6 years ago I bought a new Subwoofer Dynamo 700w which now bit the dust, needs a new amp WHICH THEY NO LONGER HAVE OR WILL ORDER MORE!!! Only 6 years old and now is garbage! You call that support!!! They offered to check if they can give me a discount on a similar model, WHY SHOULD I TRUST THEM AGAIN!!! I will NEVER buy from them again! BUYER BEWARE!!!

Well….continued support is FICTION, at least for me. Only 6 years ago I bought a new Subwoofer Dynamo 700w which now bit the dust, needs a new amp WHICH THEY NO LONGER HAVE OR WILL ORDER MORE!!! Only 6 years old and now is garbage! You call that support!!! They offered to check if they can give me a discount on a similar model, WHY SHOULD I TRUST THEM AGAIN!!! I will NEVER buy from them again! BUYER BEWARE!!!
Every company I know of does not really support subwoofers these days. Its pretty much throw them out. A long time ago I had a Carver sub and I was able to ship it to them out west and they refurnished it. Ive not seen anyone else do that now. The cost on most subs is low enough that its hardly worth fixing them these days. Heck, if your refrigerator breaks down nowadays, you throw that out and buy new. Its the way things are. I really dont like it, but its the way things are.
 
Well….continued support is FICTION, at least for me. Only 6 years ago I bought a new Subwoofer Dynamo 700w which now bit the dust, needs a new amp WHICH THEY NO LONGER HAVE OR WILL ORDER MORE!!! Only 6 years old and now is garbage! You call that support!!! They offered to check if they can give me a discount on a similar model, WHY SHOULD I TRUST THEM AGAIN!!! I will NEVER buy from them again! BUYER BEWARE!!!
The amp in my Descent subwoofer died a while back and ML did not have it. I posted it on https://diyaudio.com/ and someone told me the exact amp model it uses and where to buy it. I managed to buy a replacement and replaced it myself. Maybe you can try that.
 
Every company I know of does not really support subwoofers these days. Its pretty much throw them out. A long time ago I had a Carver sub and I was able to ship it to them out west and they refurnished it. Ive not seen anyone else do that now. The cost on most subs is low enough that its hardly worth fixing them these days. Heck, if your refrigerator breaks down nowadays, you throw that out and buy new. Its the way things are. I really dont like it, but its the way things are.
Yea, I get it. We live in a disposable economy. But this was $700 sub that lasted only 6 years. To make matters worse it arrived DOA and their customer service gave me such a run around that it took a MONTH for them to authorize a replacement. In that time I had already returned it to Crutchfield. I will NEVER buy from them again. I have other speakers that are 15-40 years old, including subs that never needed repairs. They even admitted that the failure came sooner than they expected, yet could not give me any reasonable accommodation beyond a small discount on buying another from them. Why would I EVER buy their crap again, to have it fail and be unfixable again!
 
Yea, I get it. We live in a disposable economy. But this was $700 sub that lasted only 6 years. To make matters worse it arrived DOA and their customer service gave me such a run around that it took a MONTH for them to authorize a replacement. In that time I had already returned it to Crutchfield. I will NEVER buy from them again. I have other speakers that are 15-40 years old, including subs that never needed repairs. They even admitted that the failure came sooner than they expected, yet could not give me any reasonable accommodation beyond a small discount on buying another from them. Why would I EVER buy their crap again, to have it fail and be unfixable again!
I had a BF 210 sub, cost me about $2500 new and now is a lot more, and they shipped me a brand new one when it had a failure. It failed toward the end of its warranty. They were excellent to deal with. I was very pleased. My new replacement BF 210 came with a brand new warranty too, so it started from scratch.
 
You are lucky it failed within warranty period, I was outside and the would no do anything. Took forever to even get a response, forget about even talking to anyone, they never answer the phone.
 
Mmm... certainly seems like someone on the other side forgot to either take a course in customer service or forgot to take their vitamins!
That's a real shame that ML couldn't support the Dynamo sub, especially after paying $700, that's not chump change by any means, it still hard earned dollars. This is actually the first time I've heard of such a negative response from ML itself.
OTOH over hear, Down Unda, our ML importer for Aus, Audio Active are outstanding! Their service is top notch! They'll go over and above to help you out in any area, even recommend the best pizza and coffee shop! No kidding! I've been dealing with them since Sept 2016, after going through a full line up of hybrid stats, from the Ethos all the way to the Summit-X and finally onto the CLX's. Their tech support has been spot on and I only had very minor issues, so maybe it was a breeze to attend to, I don't know. Never had any major issues as yet, then again my primary dealer for ML, Class A Audio, is just as tops! His service is second to none and he will make sure everything and anything is covered, at the end making you want to smile. No denying that!

So, it seems like ML customer service is inconsistent, maybe across regions, countries, importers and dealers... I don't know. I truly hope they stick to their standards, after all, their ESL's are awesome! Subs... well that's a whole other ball game. There are a multitude of sub brands, you really don't need to stick with ML subs. Can certainly understand the disappointment though, as anyone would think that they would fully support the brand itself that they design and make but looks like they don't have the required parts. As far as ESL's are concerned and the actual stat panels itself, it's very reassuring to know that ML does have the capability to support older panels. That's fantastic!

Until such time, do enjoy those fine tunes!
Woof! RJ
 
I agree with email working the best anywhere there is a company involved.
I feel that Martin Logan support is stellar when compared with other manufacturers.
You spent about $10 a month to have a sub speaker for six years. It was so good that you did not consider trading up during those six years. I understand about this disappointment and being upset. You can flame me if you wish to but you can purchase another for Dynamo parts or replacement.
There is a Dynamo on Ebay you can own for about $250 buy it now including shipping. buy it now
I see 133 listings on HiFi Shark that have new and used Dynamos for sale in USA. This link will automatically update every time you use it. HiFi Shark Dynamo USA
I had an issue with a Descent. I bought a used one for parts.
 
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