Yes, a much better place in fact. Apply the pattern with the outer ring just on the most protruding part of the curve, or just inside of that if it is too narrow. I suspect that by now you can use almost any size pattern to show you the location for the, in this case, mostly dots of paint.
Son of a bass!!!!!
It's back! Not all of it but the bass is now ~80% of what it was before the EnABL treatment on the drivers. It no longer sounds as mid-rangey as before drawing the patterns on the port. Amazing!
Thank you Bud for recommending that I EnABL the port. Attached is a low-res pic of what I did to the port.
There's ~6mm of space on the baffle around the port that I can also apply the pattern to. Do you think it will make a +ve difference to the bass if I treat that area too? What if I apply another ring of dots outside the existing outer ring on the port? Will that help? Maybe get the missing 20% back? Or would that be too much of a good thing?
It's back! Not all of it but the bass is now ~80% of what it was before the EnABL treatment on the drivers. It no longer sounds as mid-rangey as before drawing the patterns on the port. Amazing!
Thank you Bud for recommending that I EnABL the port. Attached is a low-res pic of what I did to the port.
There's ~6mm of space on the baffle around the port that I can also apply the pattern to. Do you think it will make a +ve difference to the bass if I treat that area too? What if I apply another ring of dots outside the existing outer ring on the port? Will that help? Maybe get the missing 20% back? Or would that be too much of a good thing?
Attachments
Would you be willing to wipe off the patterns and see if the bass goes away?
It would be a good test... assuming you can draw back the patterns without too much trouble
Yes, I was planning to do that anyway. But first, I want to get this to a level where I'm satisfied with what I hear, listen to it for some time to get used to the sound and then back up by removing the patterns on the ports for ONE speaker and then compare the fully treated and partially treated speakers.
I suspect you will need to remove some box stuffing. Not much, certainly less than 5% of the total. However, I do think that most of the full range drivers in boxes and kits from Planet 10 have very little damping material in them. Certainly the boxes I have treated over the last 40 years all needed material removed. Since the resonance nodes are diminished the box is not going to ring as much. Only you can make the determination however. Also Alex from OZ,here on Diy, has been the specialist on port treatment and you might solicit his suggestions.
Interesting... I will try this. I have been happily using old Boston Acoustics A100 with EnAble on the drivers and the box. I run the drivers full range and the tweeters just with a HQ cap. They have a lot of polyfill stuffing. They sound surprisingly good for such simple consumer grade speakers. There is no sense of the speaker being in the room. Would be interesting if they produce a little more bass without so much dampening material. Will report back.
---Quote (Originally by Lynn Olson)---
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The debunker variant is to flatly state that since quality can't be objectively measured, it doesn't exist, and that connoisseurs are engaged in a form of group self-hypnosis. The old Calvinist argument is wrapped in the garb of the modern priest, complete with a flickering oscilloscope as a stage prop.
---End Quote---
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The debunker variant is to flatly state that since quality can't be objectively measured, it doesn't exist, and that connoisseurs are engaged in a form of group self-hypnosis. The old Calvinist argument is wrapped in the garb of the modern priest, complete with a flickering oscilloscope as a stage prop.
---End Quote---
Hi Bud. In post 973 you refer to an upcoming Lowther/Eminence driver combination treatment. I have been looking for this to show up in the thread but haven't spotted it yet. Can you point me in the right direction please. I have a pair of Lowther P6M's and have been considering pairing them OB with Eminence 15" Alpha in H Frame. I have had my Lowthers for a very very long time and want to make sure that I have read absolutely everything on the subject that might be pertinent before putting pen to paper.
Regards
Denis
Regards
Denis
Ahh, another Lowther-o-phile. Special and different breed we are.
I have finally finished my drivers and they are mounted in really neat OB's with an Eminence Delta 8 per side, all from the hands and minds at Planet 10. Series crossover at 300 Hz, Zobels for both and, a pair of Pioneer piezo film half can tweeters per side, slanted in with a cap and a 2.2 ohm non inductive resistor in series, to aid above 14kHz and a transmission line tower per side with CSS SDX7 woofer pairs per box. Utterly transparent, bass texture that never gives up, liveliness and a very hard to ignore foot, leg, arm and head moving engagement. Can you tell I like them?
Pic attached.
I have finally finished my drivers and they are mounted in really neat OB's with an Eminence Delta 8 per side, all from the hands and minds at Planet 10. Series crossover at 300 Hz, Zobels for both and, a pair of Pioneer piezo film half can tweeters per side, slanted in with a cap and a 2.2 ohm non inductive resistor in series, to aid above 14kHz and a transmission line tower per side with CSS SDX7 woofer pairs per box. Utterly transparent, bass texture that never gives up, liveliness and a very hard to ignore foot, leg, arm and head moving engagement. Can you tell I like them?
Pic attached.
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Hi Bud,
Your speakers have certainly "evolved" a fair amount since I last saw/heard them. I've never come across those "Pioneer piezo film half-can tweeters" before. The baffle and the treated Delta's have also changed (or been modified) along the way as well. It would seem that you've been quite busy!
Best Regards,
Terry
Aww c'mon.. a sporadic trade Magazine writer.. Really?
Imo that's just 'Look at me' prose.
Let me know when you find a quote from a Pulitzer Prize candidate, let alone winner
Since EnABL'ing the drivers and ports has worked so well for my inexpensive micro-component speakers there are only 2 things left for me to try easily to attempt to extract the maximum from these boxes.
1. The micro-gloss coating - I'm afraid that this is something I will have to skip doing since it's not available at all in India. Oh, well.
2. EnABL'ing the box edges. I have some questions on this which I request Bud/Alex to answer. Please look at the attached image.
1. The micro-gloss coating - I'm afraid that this is something I will have to skip doing since it's not available at all in India. Oh, well.
2. EnABL'ing the box edges. I have some questions on this which I request Bud/Alex to answer. Please look at the attached image.
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Hi keith,
There is a link in my signature to the enabl kit. If Ed is still doing these he will be able to sell you some micro gloss for much less than buying it online from the supplier yourself.
Have a look at the calculator also in my signature.
Calculate block size using 4 times the front baffle width as the circumference and 18 block pairs. You can use this size pattern for all external edges.
This is the approach I would take with baffles. The red line on the front baffle is correct. Do the edges on all other panels then run a pattern straight down the middle of the side panels and straight across the top panel along the blue dotted line.
Enabl the port opening that vents inside the box, both on the inside edge of the port and on the outside edge of the port. You may need to adjust the stuffing slightly if you do this step.
Hope that helps.
There is a link in my signature to the enabl kit. If Ed is still doing these he will be able to sell you some micro gloss for much less than buying it online from the supplier yourself.
Have a look at the calculator also in my signature.
Calculate block size using 4 times the front baffle width as the circumference and 18 block pairs. You can use this size pattern for all external edges.
This is the approach I would take with baffles. The red line on the front baffle is correct. Do the edges on all other panels then run a pattern straight down the middle of the side panels and straight across the top panel along the blue dotted line.
Enabl the port opening that vents inside the box, both on the inside edge of the port and on the outside edge of the port. You may need to adjust the stuffing slightly if you do this step.
Hope that helps.
Thanks! Alex. So, I need to do all the panels the same way I have indicated for the front baffle and in addition, for the side panels, run a pattern down the middle and for the top, run a pattern in the middle from side to side. OK! Will do that and report back. Hiw many block pairs do I need to use for the middle pattern for the sides and top panels?
I have also run the pattern on the inside of the port opening and the outside edge of the port so that's already in place.
The problem with ordering online is not the cost of the product itself but the shipping which just kills it. But I'll contact Ed all the same just to find out one more time.
