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In Reply to: RE: Bassreflex - block the ports and add a subwoofer? posted by iodemus on March 25, 2016 at 16:05:34
Look to your inadequate amplifications/gear FIRST.
Rather than mutilating simple stoopid boxes to try and achieve what these things normally do with out any additional fooling with
These CAN produce Deep Clean Fast Bass... by Any yardstick.
Seriously Impressively so.
IF the Upstream gear is worthwhile.. Or even Passable :-)
Here Lookit these:
http://truefi.blogspot.ca/2016/02/the-truefi-tannoy-enclosure-manufacture.html
Follow Ups:
I have been in doubt if I should comment your fart.
The article you are linking to is about a HORN-cabinet. I have a BASSREFLEX-cabinet. It has the same well known problem: "the paper cone was absolutely not able to perform its dedicated frequency ends, i.e. the lower frequencies below 150 hz"
The B&W DB1 can handle the low frequencies perfect, and it is NOT a cheap "home theater" device.
What is "inadequate" with McIntosh C2200, 275 and Sony's SACD flagship? Answer me.
I have made speakers and SEDHT amps for more than 50 years without getting a religious attitude to "hifi" .
Good luck.
Clearly you Have NO concept of what the Red is capable of.
You May be the ONLY Reds Owner on the Planet that thinks a Sub is required or even of Use.
IMO sell the rascals and Buy yourself: some Polks, a pair of Subs and a Holiday with the proceeds
Of course I do, and today I go on a holiday with my wife.
When back the Bowers & Wilkins DB1 subwoofer will be delivered.
The Tannoy's bassreflex ports are blocked which have relieved them from the bothersome sloppy "bass".
They are ready to connect to the DB1 which do the job much better.
There has been some improvement the last 50 years worth to implement.
Sadly you haven't or will not discover that.
What kind of amplification do you use with your Polk speakers?
You'll need two 'subs' and a relatively high xover frequency.
If you block the ports the Tannoys will start to roll off between 150 and 200Hz.
Enclosure size has very little influence on bass extension when sealed, doesn't make much difference if the box is 30L or 300L.
If you want to get deep tight bass from your Tannoys without turning them into 3ways you absolutely must use a high-current, high DF transistor amp. Regardless of age Tannoys never give their best with valve-powered amps and will suffer from mushy bass and consequently muddled mids.
The biggest improvement when I added woofers to my DCs was not in the bass but in the vastly increased clarity in the mids.
Yes. Generally, systems with a devoted low frequency section sound better, if the next "up in progression" (mid-bass) section is sealed. The phase response is more linear and lends itself to the addition much better.
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