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Tekton Double Impacts

Anybody out there heard these??

I have dedicated audio room 14.5x20.5x9 ft.  Currently have Marantz Reference CD/Intergrated paired to Magnepan 1.7's with REL T-7 subs.  For the vast majority of music I love this system.  The only nit pick is that it is lacking/limited in covering say below 35 hz or so.  For the first time actually buzzed the panel with an organ sacd. Bummer.  Thought of upgrading subs to rythmicks but then I will need to high pass the 1.7's.  Really don't want to deal with that approach.

Enter the Double Impacts.  Many interesting things here.  Would certainly have a different set of strengths here.  Dynamics, claimed bottom octave coverage in one package, suspect a good match to current electronics.

I've read all the threads here so we do not need to rehash that.  Just wondering if others out there have FIRST HAND experience with these or other Tekton speakers

Thanks.
corelli
almarg's avatar
almarg
9,670 posts
 
Porscheracer, some people have reported that using Rothwell attenuators has resulted in adverse sonic effects such as a reduction in perceived dynamics.  Others have reported excellent results with them.  I am in the latter group, having used the unbalanced 10 db version for several years, a few years ago.  (My present system configuration doesn't require them).

I suspect that a major factor in the disparities among these reports is the impedances of the components they are being used with.  The worst case scenario figures to be an output impedance of the component providing the signal to them that is high and also varies significantly as a function of frequency, together with an input impedance of the component they are providing a signal to that is low.

Regards,
-- Al

P.S:  David_Ten, thanks for the nice comment. 
grannyring's avatar
grannyring
6,646 posts
 
Is there anyone in Tennessee, or even reasonable distance from the Nashville area,  that has these DI speakers? Love to hear them.....
porscheracer
132 posts
 
@almarg 

The output impedance of my preamp in tube gain mode SE is 210 ohms. Is that considered high?
almarg's avatar
almarg
9,670 posts
 
The output impedance of my preamp in tube gain mode SE is 210 ohms. Is that considered high?
No, not in itself. However the majority of tube preamps have a coupling capacitor in series with their outputs, which in some cases can cause their output impedance to rise from relatively low values at the mid-range frequency the spec is usually based on (e.g., 1 kHz), to as much as 3K or 4K in the deep bass region. (The impedance of a capacitor increases as frequency decreases).  And in many circumstances that **variation** in output impedance can be more of an issue than the 3K or 4K value itself.

I couldn’t find relevant published measurements on the Freya, so it would probably be a good idea to ask the manufacturer what its output impedance in tube gain mode is at 20 Hz.

Regards,
-- Al

sbayne's avatar
sbayne
493 posts
 
porscheracer - "Do the Rothwell attenuators alter the sound signal. I suspect they must. Any experienced there?"

No negative impact on the sound that I could detect. Rothwell's website is quite good explaining how they work.  I bought mine awhile ago but I think they are around $50 so not a huge expense either. 

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