dkalsi

I’ve gone through maybe 5 (maybe 6) pairs of Cornwalls since 2007 - my FAVORITE were the 1.5 version, even though they were in the worst physical condition of the bunch (still very good, but last compared to the rest) - it’s the one I still own today. Goodluck with your sale. Sent from my iPhone using Tapatalk

Hi All, Looking to buy a used iphone (pref. 7 or newer). I've had good experience buying from fellow forum members in the past so I thought I try again. Thanks, D

Bump - still available

https://washingtondc.craigslist.org/nva/ele/d/alexandria-klipsch-la-scalas/7160280526.html

What a fantastic deal. Good luck with sale. Sent from my iPhone using Tapatalk

That is a great purchase. Those are some seriously expense crossover components (e.g., obbligato, hovland music caps, etc.)

I'm also curious about the same question @Rudy81 you pose above. My understanding was that phase was dependent on the frequency response. Whether you use PEQ or crossover to achieve a target curve - your phase response would be identical. <---- This is what I always assumed.

Very interesting discussion. Sorry to beat a dead horse - but I want to go back to @Rudy81 question about what does the AMT-1 see at say 50hz? Some of my questions may seem elementary because I haven't even done much with active systems / PEQ. My understanding PEQ was that one has the specify the target frequency, gain/trim adjustment, and Q. If one was to "crossover" the AMT using solely PEQ say at 600hz, - would one not need multiple PEQs?- say at 600hz, 500hz, 400hz, 300hz, 200hz, - all the way down? One can broaden the impact of the PEQ by lowering the Q, but then you run to risk of impacting frequency about the target crossover region. What am I missing?

I know the Heils have limited vertical coverage, but why is that so much of a concern? Wouldn’t you have a to be really focusing on the music to tell if there are issues? And if so, why is someone doing critical listening from anyplace but the main-listening-position? Even if the whole family wants to watch a movie together, I would assume they would be doing so while sitting down, no? I love having music play in the background as I’m working on other tasks, but the limited off axis vertical response rarely bothers me. Even speakers like the Oris are directional and due to the nature of their horn flare, they have limited vertical and horizontal dispersion (relative to traditional non-waveguide/horn based speakers), but that never bothered me when I’m 60 degrees off axis while working in the kitchen. Maybe there is more to it than current understanding (e.g, room interaction - phychoacoustics). Sent from my iPhone using Tapatalk

Good questions - Metro Wash DC.

I have a pair for sale. They have been only mounted for testing, otherwise brand new. I believe they are one of the recommended drivers for the Super Heresys They sell for $140 each. How about $150+shipping. for the pair?

That receiver is something special. I regret selling mine (and selling it too cheap) - just the receiver alone is worth your asking price. Sent from my iPhone using Tapatalk

I 100% agree with Chris’s sentiments. DO NOT buy anything from ESS just yet. One of mine also had issues. I’ve been waiting since January 12th. I have talked to Ricky several times, and sent follow up emails as he requested - still no replacement. Every conversation has been: “it’s going out today”, “just got a new batch, will go out tomorrow”, etc. etc. Sent from my iPhone using Tapatalk

BUMP.

Thanks, All. Wanted to mention that my brother may consider a partial trade for an older 5.1 HT Receiver. The condition being that the receiver must have HDMI inputs and it must be reliable (i.e., have decent user rating on amazon or other website). He just needs something simple for bedroom. If anyone has an older Anthem MRX - 300/310 etc. - that would be awesome. Thanks, D

Apologies for the late response. See pictures below. The dimensions are approximately 44" x 44" x 26" Have no idea how much it weighs.

BUMP - Now $350. Again - the price for drivers alone if purchased new is $440. No one local interested in some extreme musical bass?

PS - these 2db step graphs are killing me!. One has to really pay attention to the scale; otherwise its easy to dismiss the performance of the AMTs.

This does not surprise me. The off-axis horizontal response of the AMTs was quite good. I took 0, 20, 40, 60 measurements and the AMT was performed perfectly well up to 20Khz+, 17Khz, 15Khz, and 13Khz, respectively. That.....to me....is solid. Based on that, I don't think its worth while to toe them in.

Sorry - updated (Washington DC Metro)

(Location: Just north of Washington DC - 20852) My brother is looking a to sell his Folded Horn Subwoofer. He had it professionally built by a local woodshop entirely of 18mm baltic birch plywood. - He spent quite a bit of money considering its a challenging build. I believe it houses dual 12" Eminence Lab12 subwoofers. It is an absolute monster from 35hz - 200Hz. With room gain, it digs a little lower. My brother had this built knowing that it was not the last word in low-end extension, but because it was the most musical bass he had heard. He used it with a pair of Heresys for music and occasionally HT. Nor he or I know a fair asking price for this, but he paid well over $1,000 for this few years back. For now, he is asking $400 (which is about $50 less than what it costs to just purchase a pair of Lab12 drivers). See picture below from Inlow Sound: https://inlowsound.weebly.com/folded-bass-horn.html

Chris - did you mean 2Kz or 1Khz? I would imagine they are fine down to 1Khz, even without wings or stacked, no?

I plan on experimenting with the Eminence Delta Pro 12A + AMT1s in the coming days. I'm nearly done completing a test cabinet and hope to start taking measurements by the weekend. I know the ESS used the AMTs down to 800hz, but given my distortion measurements, I don't plan on using them less than 1200hz. I'll see how the horizontal polar response if the Eminence mattes the polar response of the AMTs at that 1200hz x-over point. The Delta PRO should not start beaming until about 1300Hz (where the wavelength = 264mm). The Delta PRO's effective piston diameter is 260mm. So I suspect that above 1300hz, the wavelength will drop below 260mm and the cone geometry will start beaming.

Sample 1 - Distortion (2.83v at the terminal)

Sample 1 - Distortion (2.83v at the terminal) - So this would approximate 100db at 1M.