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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
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almarg
9,670 posts
 
Kdude66 8-27-2017
If my memory is correct,
The m22 has about 23db of voltage gain which is only 3db lwr than most SS amps at 26db.It’s been a long time since I had mine....

The M22 has extremely low distortion and a very good signal to noise ratio of 106.Very impressive specs back in 1976.Being a pure class A push pull design it probably draws about 240 watts from the wall anytime it’s on even with no music playing.
Kenny, your memory is truly exceptional :-)

Specs for the M-22 that are provided at HiFiEngine.com indicate 1 volt sensitivity and a power rating of 30 watts into 8 ohms. Those numbers correspond to a gain of 23.8 db!

Also, the service manual (which can be viewed at HiFiEngine.com if one is registered there) indicates a power consumption of 280 watts, and "hum and noise" under certain specified conditions of -106 db!

Best regards,
-- Al

kdude66
1,200 posts
 
Thank's Al

I'm not registered on HiFi engine,I used to be 5 or 6 yrs ago but I lost my password and I've never got another one yet.
So my memory isn't always that good with some things.😃

Kenny.
porscheracer
132 posts
 
Thanks for the info!!

The M-22 has 23.8dB of gain. Really? Vidar has 27dB of gain. That makes sense based on how little I have to move the volume knob to match sound levels between the two amps.

The interesting thing is that Vidar, even with the preamp off, outputs a noticeable hum in the speakers. The M-22 has zero hum when the preamp is off. I figured the gain was the issue. But the gain difference is not large enough. 3.2dB less would be quieter...but not enough quieter to eliminate the hum. I can only speculate that Vidar has an issue that the M-22 does not.
porscheracer
132 posts
 
Oh, I have a paper and PDF copy of the service manual. I've been trying to locate the user manual. No luck....
porscheracer
132 posts
 
I looked up the math so now I know how to calculate amp gain. All you need to know is watts, load resistance, and input sensitivity. Two formulas to solve and you are all done! Thanks!

http://www.audioholics.com/audio-amplifier/amplifier-voltage-gain
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