I just received my 2 RS225-8 from P.E. a pair from the last 30 pieces, now on back order.
Next thing to buy will be the B80 and XO parts then build the TL.
Somebody can recommend me the most cost effective XO parts from PE?
There is so many options and don't want to spend to much.
Another question, TC9 is very cheap so, it can be a better option than B80?
(Sorry for my bad english, I do my best.)
Next thing to buy will be the B80 and XO parts then build the TL.
Somebody can recommend me the most cost effective XO parts from PE?
There is so many options and don't want to spend to much.
Another question, TC9 is very cheap so, it can be a better option than B80?
(Sorry for my bad english, I do my best.)
The TC9 is a good driver.
But the B80 is really better.
If you can, save a little money and get the B80.
In the many years to come listening to your speakers, you will enjoy them and not think too much about the price.
But the B80 is really better.
If you can, save a little money and get the B80.
In the many years to come listening to your speakers, you will enjoy them and not think too much about the price.
It’s on hold as the LuFo/SuSyLu now has priority. 100w SE Class A balanced output Super Symmetry choke-loaded LU1014D Source Follower amp does sound cool though. 🙂
SuSyLu Where Are You?
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xrk971,
You said that if your amp can put out more than 100Wrms you must use some sort of active high pass filter to prevent frequencies below 30Hz being fed to speaker at high volumes.
I don't see an active high pass filter on my power amp.
You said that if your amp can put out more than 100Wrms you must use some sort of active high pass filter to prevent frequencies below 30Hz being fed to speaker at high volumes.
I don't see an active high pass filter on my power amp.
Most amps don’t do this - I am not sure where I said this, but what I meant is if you have a powerful amp and your music has content below 30Hz and you like to play it loud, you should be careful and make sure there is something to protect the over excursion. If you use a DSP prior to your amp, this can be easily implemented. It’s tough to do with passive speaker level components. Most speakers that are rated below the max power of an amp would not like to be driven to their limits with home theater style subwoofer bass, unless it was a subwoofer.
Dear XRK
Much respect to you on your work on Karlson speaker and Alpha Nirwana class A amp
which I follow.
Please excuse me to ask one question although not in the same forum topic.
How will the Fostex 206EN sound in your 10F/RS225 Fast TL box design?
John.
Much respect to you on your work on Karlson speaker and Alpha Nirwana class A amp
which I follow.
Please excuse me to ask one question although not in the same forum topic.
How will the Fostex 206EN sound in your 10F/RS225 Fast TL box design?
John.
John,
It's X's design and he will be able to say for certain, but I'll hazard an answer - it is unlikely the Fostex FE206EN will be a good fit with the TL designed for the RS225, as the specifications are very different. Look at parameters like Fs, Qts, VAS, Qes, Xmax - you will see a big difference.
Though both drivers fall in the 8" category, the parameters are different, and hence cabinet size and design should be different too.
It's X's design and he will be able to say for certain, but I'll hazard an answer - it is unlikely the Fostex FE206EN will be a good fit with the TL designed for the RS225, as the specifications are very different. Look at parameters like Fs, Qts, VAS, Qes, Xmax - you will see a big difference.
Though both drivers fall in the 8" category, the parameters are different, and hence cabinet size and design should be different too.
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Zman is correct. The Fostex is very different and would need a total new TL design, and it may not even be suitable for making low bass in a TL like the RS225-8. It is more suited for a back loaded horn. With a 0.7mm xmax (1/10 of value of RS225-8).
The RS225-8 is in my experience, a unique driver, and nothing similar is available at any price from another manufacturer. Wide flat smooth bandwidth, large Xmax, low breakup way up at 7kHz, perfect Qts and Vas.
The RS225-8 is in my experience, a unique driver, and nothing similar is available at any price from another manufacturer. Wide flat smooth bandwidth, large Xmax, low breakup way up at 7kHz, perfect Qts and Vas.
Thanks Zman
My earlier experience with Fostex 206en in a TL was fairley nice.
At present they sit in a double bass refles box suggested by Fostex acting as satelites aided by
a passive sub for lack of bass.
I was hoping the RS225 TL would solve the lack of bass problem which would automatically tame the midrange shrill.
My earlier experience with Fostex 206en in a TL was fairley nice.
At present they sit in a double bass refles box suggested by Fostex acting as satelites aided by
a passive sub for lack of bass.
I was hoping the RS225 TL would solve the lack of bass problem which would automatically tame the midrange shrill.
The RS225 TL needs no subwoofer and has plenty of bass. It is low sensitivity though after baffle step falloff, so you need to attenuate your mids and highs to be circa 82-83dB / 1m and 2.83v rms.
It goes down to 26Hz though. For the music I listen to, no sub woofer is needed.
It goes down to 26Hz though. For the music I listen to, no sub woofer is needed.
I have the plain sealed version and even in a smaller enclosure with boundary gain the bass is brilliant. Admittedly they are REALLY pressed into the walls /corners.
I also just realised....I thought I was like 21...22 litres. No. My boxes are 17 gross....minus XO and sports cone. Still sound amazing .!
I also just realised....I thought I was like 21...22 litres. No. My boxes are 17 gross....minus XO and sports cone. Still sound amazing .!
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Hi Jimk04,
Those look great! Have you ever posted the pix before because I don't recall seeing this. Are those PS95-8's? I like those drivers a lot.
Cheers,
X
Those look great! Have you ever posted the pix before because I don't recall seeing this. Are those PS95-8's? I like those drivers a lot.
Cheers,
X
