Tang Bang W8-1772 Impressions. - Page 42 - diyAudio
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Old 27th March 2012, 11:37 PM   #411
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My W8-1772 impression:
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Old 28th March 2012, 01:38 AM   #412
mp9 is offline mp9  United States
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Quote:
Originally Posted by HornTube View Post
@Nelson Pass:
BTW, I just read that Herb Reichert is a friend of yours. I love this guy. He is bloody right about SE amps and silver cables "...don't buy clothes, go naked - don't buy food but do buy silver..."

Click the image to open in full size.
Herb is a cool guy. Told me lots about SET amp / speaker compatibility and so fourth when i'd see him at the Philadelphia Audio Society year end extravaganzas years ago. I always liked reading his musings in Sound Practices too. Good to see him getting some love around here
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Old 20th March 2013, 09:51 AM   #413
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So I built my first speakers using these drivers. My plywood enclosures are 50cm tall, 31cm wide and 37,5cm deep with internal volume without bracing and driver volume about 39 liter. They are dual ported - 48mm wide and 75mm deep tubes tuned to 45hz. They are heavy damped with loose cotton wool about 2/3 of volume.

First impressions - they are too bright and need some corrections. Could you please suggest how to equalize them with PC based parametric equalizer? I don't want any physical correction circuits because my only source will be computer.
I drive them by NAD C326BEE integrated amp and my sound card is Maya44.
Thanks!
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Old 20th March 2013, 11:13 AM   #414
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Default impression

Hello,
my solution the SCHALMEI Sat work extraordinär,
no crossover or notch filter,
with a superb sub an very small solution, 95 dB 1 W 1m.
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Old 20th March 2013, 11:44 AM   #415
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hm, what is your sub frequency range?
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Old 20th March 2013, 11:55 AM   #416
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Thanks, Horst, for telling the OP how to fix HIS speakers.

By disregarding the possibility of in-line passive components, you eliminate the possibility of fixing the speakers themselves. The 1772's need a BSC filter and and series RC filter in parallel with the driver. However....

Since your source will be a computer, you can easily create the digital equivalent of the required passive filters. Depending on the player you are using, you should be able to set the built-in equalizer to what ever you need. Probably a better solution would be to get a DSP module to go between the computer and the amp. You need at least a low step filter and a high step filter.

Bob
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Old 20th March 2013, 12:33 PM   #417
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Thanks, Bob! I will use MEqualizer VST plugin within Foobar player.

At what frequency range should I look for? What are your suggestions for Q values for high shelf and low shelf filters?

Thanks!

Last edited by Darkheart; 20th March 2013 at 12:54 PM.
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Old 20th March 2013, 03:15 PM   #418
hm is offline hm  Europe
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Default Darkheart

i would prefer the Schalmei sat with my ALPHORN sub,
90 Hz 18 dB, sat fullrange.
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Old 20th March 2013, 03:30 PM   #419
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hm, how could it help with w8-1772's rising HF response? Btw. I have a pair of subs for my speakers but I don't want them use higher then 75hz.
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Old 21st March 2013, 07:49 AM   #420
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Hello, do you read the measurements?
the double horn SCHALMEI add 4-5 dB below ~700 Hz + roll off ~12 dB,
look the data sheet of TB, then you have no bright sound,
exactly 75 Hz "but I don't want them use higher then 75hz" you kiding me.
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