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Post by Deleted on Mar 1, 2021 10:58:27 GMT -5
Hi @deleted - The style of the grill depends on the purpose of the grill (to state the obvious). 1. If the purpose of the grill is to increase WAF, then a "full cover" with an opaque grill-cloth is likely the preferred option. 2. If the purpose of the grill is to protect the drivers from kids & pets, then a "full cover" with either a heavy grill-cloth or a metal screen would do the job. 3. If the purpose of the grill is to protect the bottom woofer from the vacuum cleaner, then the single woofer cover would work fine. If you're looking for minimum interference with sound quality then reverse the order of the three suggestions above. But you already knew all this. Since you're asking for opinions, mine is that the woofer covers are best. I opine that for at least two reasons: Reason one - the outside frame of the full grill will interfere with the wave launch. Its surfaces will cause a reflection of all drivers that will (at least in theory) interfere with imaging. Reason two - the center horizontal support of the full grill is in immediate proximity to the central "super tweeter" of the array. Since high frequencies are more prone to interference problems than are low frequencies, having that frame almost over the center driver will definitely affect the wave-launch. And on another note, if you're going to put that grill over the woofers of the main speakers, I'd consider also putting similar grills on the subwoofer drivers. It will visually unify the setup and also protect the sub drivers. Cordially - Boomzilla Thanks Boom, I'll try to acclimate w/ only the 12" woofer covers for now. If in the future the kitties not kiddies won't leave the tweeters alone then I'll go w/ a custom transparent mesh to guard against curious beasts. I will take your advice though [thanks!] and remove the center brace from the framework if I go that route. I'm sure the brace wouldn't be needed w/ the additional rigidity of metal mesh opposed to fabric grill cloth. Enjoy!
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Post by boomzilla on Mar 1, 2021 13:28:06 GMT -5
Sounds like a plan!
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Post by Deleted on Mar 1, 2021 13:57:20 GMT -5
Amazingly to me, after living w/ the Tektons for near a year w/ grills on is how different they sound w/out the grills. I can definitely detect a noticeable difference .... As I sat here not realizing at first that the grills are the culprit I was wondering why they sounded different. I'll have to acclimate to the sound for awhile. The grill clothes as my immediate speculation offer tremendous "dampening/softening" of the MTM array. You stated an term or acronym WAF which I am unfamiliar w/?
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Post by garbulky on Mar 1, 2021 14:18:13 GMT -5
Is @deleted who I think it is?
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Post by leonski on Mar 1, 2021 14:18:57 GMT -5
Wife Acceptance Factor. Anything but a 'plus' in this part of the equation renders the remainder non-operational.....
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Post by leonski on Mar 1, 2021 14:19:28 GMT -5
Is @deleted who I think it is? Depends who you think it IS!
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Post by garbulky on Mar 1, 2021 14:29:20 GMT -5
Is @deleted who I think it is? Depends who you think it IS! If you are thinking about who I'm thinking, I'm thinking it is .... @deleted !
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Post by Deleted on Mar 1, 2021 14:36:21 GMT -5
Wife Acceptance Factor. Anything but a 'plus' in this part of the equation renders the remainder non-operational..... She hasn't said a thing to me all day. I suspected that it was because I put down a rug leading down the hall to the entertainment room. The hallway was acting as an echo chamber. I broke my golden rule and made a couple of changes during the night. I generally introduce things one at a time and very slowly to acclimate her. Now that you mention it...... teehee, she probably is still in shock waking up and for the first time seeing all those speakers:
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Post by Deleted on Mar 1, 2021 14:43:37 GMT -5
I swear by my wife’s ear for two reasons: 1) She’s a piano major 2) She buys my gear, and LOVES big blue meters! One of my most favorite things to do is to argue w/ the sound guys at church come Sunday morning. We have a grand piano and at times the pianist is joined by a violinist. They like to amplify the instruments and I always argue leave it alone and leave the electronics out of the equation! I generally try to hold as much in memory as possible, come home, and see how my system compares to what I heard as the reference. I can definitely appreciate you utilizing your beloved's skilled hearing.
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Post by Deleted on Mar 1, 2021 18:08:02 GMT -5
I've been wanting to try using a different amp rather than the plate amp in the Tekton 4-10s. That is, since I went back to two channel stereo I have an extra unused channel in my Parasound A31. Let's crack open the back of the Tekton cabinets. Note the speaker level inputs.... cause I'm going to use them: What I did was... utilize the banana speaker level inputs on the back of Yung amp to be the cabinet speaker inputs. I just need to run the sub wires to those inputs on the inside as seen below. Clipped the amp's wires going to the subs and then used the sub wiring to connect to the nuts of the line level input terminals. In both above and below pictures you can see the 4 nuts which each go to LR speaker line level inputs on back of amp. So I took the speaker line level input wires to these nutted terminals and then used the terminals to connect the wiring to the subwoofers. Here's the way it'll look at the rear of the cabinet when wrapped back up together. The speaker wires are from the Parasound and connect to the amps line level inputs and on the inside the terminals are now connected to the subwoofers. The Parasound A31 delivers 400 watts rms per channel intoi 4 ohms. However, some publications during testing state the amp is an overachiever and outputs more closer to 550 watts per channel into 4 ohm before audible distortion. So how does the Class A/AB amp sound compared to the Yung 300 watts rms plate amp? Reversing everything and going back to the Class D Yung! That's right, definitely went in the wrong direction and lost bass output. Mind you, each 4-10 has one 300 watt plate amp. That's 600 watts in total to a pair of 4-10s whereas the Parasound has roughly 550 watts which would be divided by two because I had two 4-10s hooked up to the extra Parasound channel. I had wired them in parallel..... Glad I found something to do late at night when I couldn't sleep. On the other hand I totally wasted an hour and half.
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Post by leonski on Mar 1, 2021 18:47:16 GMT -5
Wife Acceptance Factor. Anything but a 'plus' in this part of the equation renders the remainder non-operational..... She hasn't said a thing to me all day. I suspected that it was because I put down a rug leading down the hall to the entertainment room. The hallway was acting as an echo chamber. I broke my golden rule and made a couple of changes during the night. I generally introduce things one at a time and very slowly to acclimate her. Now that you mention it...... teehee, she probably is still in shock waking up and for the first time seeing all those speakers: That'd DO IT...... When I got married I made it CLEAR that I was an audio guy and those 'panels' were here to stay. But I otherwise compromise on the side of 'live and let live'. OH! I could make changes or perhaps would WISH to make changes but I'm not going to. Good is good enough. Never let perfect be the enemy of good.
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Post by leonski on Mar 1, 2021 18:49:20 GMT -5
She hasn't said a thing to me all day. I suspected that it was because I put down a rug leading down the hall to the entertainment room. The hallway was acting as an echo chamber. I broke my golden rule and made a couple of changes during the night. I generally introduce things one at a time and very slowly to acclimate her. Now that you mention it...... teehee, she probably is still in shock waking up and for the first time seeing all those speakers: That'd DO IT...... When I got married I made it CLEAR that I was an audio guy and those 'panels' were here to stay. But I otherwise compromise on the side of 'live and let live'. OH! I could make changes or perhaps would WISH to make changes but I'm not going to. Good is good enough. Never let perfect be the enemy of good. You'd probably have been better off doing what I do when I can't sleep. Watch reruns of The Twilight Zone. Last nite? Leonard Nimoy before he grew the ears. Others too numerous to mention.
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Post by rbk123 on Mar 1, 2021 20:59:00 GMT -5
So Shimei - why'd you go incognito?
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Post by Deleted on Mar 1, 2021 22:22:17 GMT -5
So Shimei - why'd you go incognito? Deleted my old account and then decided to come back [while using the board's block feature]. Not really trying to be an incognito undercover brutha but ya can slap ma' phro! Since my old account was renamed "Deleted" I decided to just use that name.
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Post by leonski on Mar 2, 2021 1:20:46 GMT -5
What or whose drivers does Tekton use?
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Post by leonski on Mar 2, 2021 1:28:59 GMT -5
I've been wanting to try using a different amp rather than the plate amp in the Tekton 4-10s. That is, since I went back to two channel stereo I have an extra unused channel in my Parasound A31. Let's crack open the back of the Tekton cabinets. Note the speaker level inputs.... cause I'm going to use them: What I did was... utilize the banana speaker level inputs on the back of Yung amp to be the cabinet speaker inputs. I just need to run the sub wires to those inputs on the inside as seen below. Clipped the amp's wires going to the subs and then used the sub wiring to connect to the nuts of the line level input terminals. In both above and below pictures you can see the 4 nuts which each go to LR speaker line level inputs on back of amp. So I took the speaker line level input wires to these nutted terminals and then used the terminals to connect the wiring to the subwoofers. Here's the way it'll look at the rear of the cabinet when wrapped back up together. The speaker wires are from the Parasound and connect to the amps line level inputs and on the inside the terminals are now connected to the subwoofers. The Parasound A31 delivers 400 watts rms per channel intoi 4 ohms. However, some publications during testing state the amp is an overachiever and outputs more closer to 550 watts per channel into 4 ohm before audible distortion. So how does the Class A/AB amp sound compared to the Yung 300 watts rms plate amp? Reversing everything and going back to the Class D Yung! That's right, definitely went in the wrong direction and lost bass output. Mind you, each 4-10 has one 300 watt plate amp. That's 600 watts in total to a pair of 4-10s whereas the Parasound has roughly 550 watts which would be divided by two because I had two 4-10s hooked up to the extra Parasound channel. I had wired them in parallel..... Glad I found something to do late at night when I couldn't sleep. On the other hand I totally wasted an hour and half. Speaker inputs on subs draw nearly ZERO power. you could, if you wished, even use Magnet wire to connect. When it comes to Grills? I MUCH prefer Charcoal.
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Post by Deleted on Mar 2, 2021 11:38:15 GMT -5
What or whose drivers does Tekton use? "The Ulfberht is a four-way design that uses a total of 21 drivers. Starting at the bottom of the front baffle is the highest quality 12-inch woofer that is manufactured by Eminence. Above the woofer is a pair of seven-inch mid-bass patented "overtone & harmonic" bass transducers of Italian origin. Next is a proprietary, patent-pending 15-dome radiating hybrid MTM high-frequency array of Scan-Speak drivers from Denmark. They are larger domes with extremely low resonance frequencies, and they are highly efficient. Flanking this array are four small vents. Another pair of mid-bass drivers followed by a 12-inch woofer takes you to the highest point of the front baffle."
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Post by Deleted on Mar 10, 2021 15:48:26 GMT -5
Phantom center tuning! Haven't done so since I removed the center channel. Ulfberhts were moved in from 9 feet to 8 feet. Toe was lessened and now each speaker points to outside of shoulder to a 3 wide listening position. Speakers were pulled from wall increasing distance to 18 inches to sound absorber. I noticed a narrow phantom channel that seemingly ceased before actually reaching the speakers. The phantom was too focused. These adjustment increased the width of the phantom center. The bass is a little deeper probably from increasing the rear wall distance from 1 foot to 18 inches - The Ulfs are rear ported. Moving the speakers inwards towards one another also has the effect of extending the sound stage past the outside of the speakers. I moved the 4-10 back towards the wall further as they are sealed and not ported. My thinking was that I'd cut down on a reflective surface not having them even or flush w/ the front of the Ulfs. Being further away from the wall I believe the increased depths actually makes the cabinets act like a diffuser. Definite improvements. Sub placement - recessed from Ulfs and staggered deeper inwards towards wall: www.disqus.social/2021/03/phantom-center-tuning.html
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Post by foggy1956 on Mar 10, 2021 16:32:15 GMT -5
Phantom center tuning! Haven't done so since I removed the center channel. Ulfberhts were moved in from 9 feet to 8 feet. Toe was lessened and now each speaker points to outside of shoulder to a 3 wide listening position. Speakers were pulled from wall increasing distance to 18 inches to sound absorber. I noticed a narrow phantom channel that seemingly ceased before actually reaching the speakers. The phantom was too focused. These adjustment increased the width of the phantom center. The bass is a little deeper probably from increasing the rear wall distance from 1 foot to 18 inches - The Ulfs are rear ported. Moving the speakers inwards towards one another also has the effect of extending the sound stage past the outside of the speakers. I moved the 4-10 back towards the wall further as they are sealed and not ported. My thinking was that I'd cut down on a reflective surface not having them even or flush w/ the front of the Ulfs. Being further away from the wall I believe the increased depths actually makes the cabinets act like a diffuser. Definite improvements. Sub placement - recessed from Ulfs and staggered deeper inwards towards wall: What is the distance from MLP to towers?
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Deleted
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Post by Deleted on Mar 10, 2021 16:33:48 GMT -5
Phantom center tuning! Haven't done so since I removed the center channel. Ulfberhts were moved in from 9 feet to 8 feet. Toe was lessened and now each speaker points to outside of shoulder to a 3 wide listening position. Speakers were pulled from wall increasing distance to 18 inches to sound absorber. I noticed a narrow phantom channel that seemingly ceased before actually reaching the speakers. The phantom was too focused. These adjustment increased the width of the phantom center. The bass is a little deeper probably from increasing the rear wall distance from 1 foot to 18 inches - The Ulfs are rear ported. Moving the speakers inwards towards one another also has the effect of extending the sound stage past the outside of the speakers. I moved the 4-10 back towards the wall further as they are sealed and not ported. My thinking was that I'd cut down on a reflective surface not having them even or flush w/ the front of the Ulfs. Being further away from the wall I believe the increased depths actually makes the cabinets act like a diffuser. Definite improvements. Sub placement - recessed from Ulfs and staggered deeper inwards towards wall: What is the distance from MLP to towers? 9 feet making an unequal triangle: 8 feet between each speaker and both speakers 9 feet to center of couch MLP.
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