I purchased a set of Tekton Double Impact Speakers earlier this year. From day one, I noticed that there was not great bass as described in the many positive reviews of the speakers. The bass sound seems very flat, especially at low to normal listening levels. The speakers are connected to a Willensenton R8 Tube Amplifier, Bluesound Node2i Network Streamer, and a Denafrips Ares II DAC. After trying just about everything from new speaker cables, Tidal Subscription, Two sets of Tubes Kt88 & EL34, to moving them out from the wall I decided to take a look inside the speaker by removing the top 10" woofer which allowed me to see the crossover inside. Based on what I see, does anyone know if the wiring to the crossover look ok? Are the wires from the woofers reversed? I see the red pos. wires from the woofers connected to the neg. side of the crossover and the black neg. wires from the woofers connected to the pos. side of the crossover. Could they have been wired incorrectly at the factory? Any help or input that can help would be great appreciated..
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What about vertical placement variations e.g. on the floor, above floor etc.? It's better to try all possibilities before proceeding to remove any screws.
And, there isn't much of a crossover network to be honest, but then we'll ignore that for now as it depends on the design.
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Hi Brent, do you by any chance has a measurement mic and REW? Just curious to see if you have a measured frequency response at the LP. For sure room modes will dominate the low frequency response, but good to see nonetheless...
Lojzek, can you link to the thread ?
I know a little about the b102.
Assuming the tekton is using the newer b102, 1 diver qts is near .4, so you'd need 2.4ft3 for f3=tune=fs=50hz (ideally).
Tekton specs 4ohm, so assumin the 2x10" are in parallel.
Maybe add a bunch of eq ?
My speakers are -10db at 50hz (qts.32, fs50), so i boost the schmoo out of it, sounds great, but not everywhere in the room.
If you dont listen 100db at your listening spot, bass will be weak due to fletcher munson curve (how we hear).
Some have looked at tekton stuff over at partsexpress forum.
Maybe you listen to music with deep bass, like massive attack, sndtrk to blade runner 2049, bit of 80-90's dance music, or want the drums to hit you.
Another idea i you don't like the crossover point.
I thrive on midbass, had a double 15 crossed at 750hz for over 10 years. Going to a 3~way just seems messed up in the bass voice/bass guitar.
My morel solstice wert low (2x6" mltl), but beyond background level just can't cut the mustard.
Carefull on those paid reviews.......
I'm always amazed by praises of awesome bass, from an 8", not on the floor, from 10' away.........
Not for me, my setup, my music, my big room (15x25), my volume levels (not eviction loud either)...........
I know a little about the b102.
Assuming the tekton is using the newer b102, 1 diver qts is near .4, so you'd need 2.4ft3 for f3=tune=fs=50hz (ideally).
Tekton specs 4ohm, so assumin the 2x10" are in parallel.
Maybe add a bunch of eq ?
My speakers are -10db at 50hz (qts.32, fs50), so i boost the schmoo out of it, sounds great, but not everywhere in the room.
If you dont listen 100db at your listening spot, bass will be weak due to fletcher munson curve (how we hear).
Some have looked at tekton stuff over at partsexpress forum.
Maybe you listen to music with deep bass, like massive attack, sndtrk to blade runner 2049, bit of 80-90's dance music, or want the drums to hit you.
Another idea i you don't like the crossover point.
I thrive on midbass, had a double 15 crossed at 750hz for over 10 years. Going to a 3~way just seems messed up in the bass voice/bass guitar.
My morel solstice wert low (2x6" mltl), but beyond background level just can't cut the mustard.
Carefull on those paid reviews.......
I'm always amazed by praises of awesome bass, from an 8", not on the floor, from 10' away.........
Not for me, my setup, my music, my big room (15x25), my volume levels (not eviction loud either)...........
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Lojzek, I'm suspecting that the crossover is not wired correctly. See picture in my original post. The sound that I'm getting it very similar to when speakers are hooked up out of phase. Checking my speaker cables was the first thing I checked.. Doe's anyone know about crossovers who can look at my picture and tell me if the crossover it wired correctly? I have highlighted and labeled the wires in the picture, and yes the two 10 woofers (TD-LGND BP 102) are in parallel. No, I don't listen to extreme bass music. Mostly listen to Jazz, Dire Straits, Instrumental, Nora Jones, etc. The link you mention to Stereophile "Tekton Double Impact-Very Disappointing" is spot-on to the problems I'm having with the sound.
true, I always use my stereophile tester #2 to make sure the phase is right (between left and right speakers, or binding posts on the outside of the speakers)……………….
assuming not that the crossover isn't screwed...……….
My cerwin vega dx-9's (15" 3-way) had not much bass until they got LOUD.
assuming not that the crossover isn't screwed...……….
My cerwin vega dx-9's (15" 3-way) had not much bass until they got LOUD.
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Yes, Brent, the woofer is wired out of phase. Can you get a similar shot from the other box, just to see if it's the same?
EDIT: Have you broken them in for long enough to say they don't have bass? The suspension may not be very compliant in the beginning.
Which one did you watch?
EDIT: Have you broken them in for long enough to say they don't have bass? The suspension may not be very compliant in the beginning.
Which one did you watch?
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newvirus2008, Already checked the other speaker. Its wired the same.. Before I purchased the speakers I watched both of those reviews along with other popular reviewers on youtube like "The next best thing Studio", "Zero Fidelity"
Tekton Double Impact Loudspeakers
i like his deep rpg's.
I use 12" sonotube as diffusers on the back wall ...…………..
i like his deep rpg's.
I use 12" sonotube as diffusers on the back wall ...…………..
newvirus2008,
Before I purchased the speakers I watched both of those reviews. I spent some time researching The Tekton Double Impacts. Many other top reviewers on Youtube like "The next best thing studio" and "Zero Fidelity" gave them such rave reviews.. Here is a bigger image of the crossover inside. I highlighted and labeled the wires. Again, I suspect the crossover may be not wired correctly.. Hopefully someone can look at the picture give me some expert advise as to the wiring if its done correctly or not? and how to fix it? if need be..
Before I purchased the speakers I watched both of those reviews. I spent some time researching The Tekton Double Impacts. Many other top reviewers on Youtube like "The next best thing studio" and "Zero Fidelity" gave them such rave reviews.. Here is a bigger image of the crossover inside. I highlighted and labeled the wires. Again, I suspect the crossover may be not wired correctly.. Hopefully someone can look at the picture give me some expert advise as to the wiring if its done correctly or not? and how to fix it? if need be..
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You've probably tried both the 4 and 8 ohm outputs of the amp? Have you tried a SS amp?
Remove the speaker wire from the amp and put a 1.5v battery across the wire For a split second. Do both woofers move in the same direction? If they do, there wired right.
Are you sure your room isn't sucking the low end out? Or is it bad everywhere in the room?
Remove the speaker wire from the amp and put a 1.5v battery across the wire For a split second. Do both woofers move in the same direction? If they do, there wired right.
Are you sure your room isn't sucking the low end out? Or is it bad everywhere in the room?
cbdb,
Yes, I tried listening with the speakers connected to both 4 and 8 ohm outputs on amp. I also tried connecting the speaker cables in reversed polarity. Also, I connected the speakers to an old Denon Receiver( I don't have a SS Amp). None of this helped? I will try the battery test you mentioned.. Thanks for the suggestion.
Yes, I tried listening with the speakers connected to both 4 and 8 ohm outputs on amp. I also tried connecting the speaker cables in reversed polarity. Also, I connected the speakers to an old Denon Receiver( I don't have a SS Amp). None of this helped? I will try the battery test you mentioned.. Thanks for the suggestion.
Brent21 said:
When I meant out of phase, I just meant that the amp red runs to spk black and vice versa, but spk reds and blacks are still running together which is fine, provided the voice coil polarities (within speakers) are also correct. Since phase is relative the disparity could be between left & right or between the drivers within the same box. Now, there's another phase issue between woofer and tweeter, where you would get a huge mid-range scoop-out that no EQ can fix, but this is definitely not that one.
The battery test will tell you if any individual ones need to be inverted. If yes, then that's a workmanship-related defect at the speaker level. However, the surprising thing would be that your particular set of speakers still managed to pass the manufacturer's QC tests!
Come on, that was just for fun. 🙂
Nevertheless, Norman Bates has an important point in post #6. Be careful of reviews that focus too much on subjective quality, as they tend to give the impression of magic (and not science) being behind the speakers' performance.
norman bates said:
Sir, I don't know why I feel that it's the same as what it is now? Amp and spk in opp phase (that's ok) but both spk in phase, isn't it?
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Yes, though the speaker maybe using patented technology etc., the photographs taken by the OP clearly shows poorly finished wire joints and/or soldering. Note that these are joints that are subject to strong vibrations during operation of the unit, so their reliability does matter.
And Brent, did you try raising the speaker off the floor (by say a foot) ?
And Brent, did you try raising the speaker off the floor (by say a foot) ?
9v battery test, connect batt pos to speaker pos connector, in phase, woofer will move out, out of phase, woofer move in,…
Simple, fast…
Btw you can the battery just for a little spike, not continuously, obviously…
And yes use a SS amp, tubes amp have often moderate woofer control, to put it midly. Dual woofers in parallel present a serious, low impedance load for any tube amp, except something like a big Macintosh amp…
You need something like a solid Bryston amp to get fast, strong bass, or a good class-a amplifier that can supply ton of current, like a good Passlabs amp 😉
SB
Simple, fast…
Btw you can the battery just for a little spike, not continuously, obviously…
And yes use a SS amp, tubes amp have often moderate woofer control, to put it midly. Dual woofers in parallel present a serious, low impedance load for any tube amp, except something like a big Macintosh amp…
You need something like a solid Bryston amp to get fast, strong bass, or a good class-a amplifier that can supply ton of current, like a good Passlabs amp 😉
SB
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