By the way,I had a pair of Advent 3 (vintage speaker from the U.S.) speaker, it didn't produce distortion when I turned the volume to 40% of the amplifier,but the sound was not as louder as my DIY speaker,I need to turn it to 55% to get the same volume,but it still not produce distortion.
The music is from a Taiwanese female singer,performs the alto voice ,distortion is heppened on her high pitch voice,sounds ear-splitting,so I think there's something wrong with the midrange as I heard.
You should use this mid-woofer (Hi-Vi D6.8 7" Poly Cone Woofer) in a small enclosure about less than 20/22L max. (x2) for your 2 drivers in your floorstanding loudspeaker.
You can have an FB = 33.0 Hz or between 32-40Hz for your port, I'm considering one for each (2x). I think the internal volume for your speaker is more than the necessary, you can have inside spaces for your crossover, et all.
You should use this new crossover, the other (old/2010) would resonate at about 1KHz.
This new crossover should work with small calibrations.🙂
If you are not happy with it, download Boxsim from Visaton, Spl trace program or SPL copy (nth Technologies Inc v.1045) and go to work.😎
You can have an FB = 33.0 Hz or between 32-40Hz for your port, I'm considering one for each (2x). I think the internal volume for your speaker is more than the necessary, you can have inside spaces for your crossover, et all.
You should use this new crossover, the other (old/2010) would resonate at about 1KHz.
This new crossover should work with small calibrations.🙂
If you are not happy with it, download Boxsim from Visaton, Spl trace program or SPL copy (nth Technologies Inc v.1045) and go to work.😎
Attachments
You should use this mid-woofer (Hi-Vi D6.8 7" Poly Cone Woofer) in a small enclosure about less than 20/22L max. (x2) for your 2 drivers in your floorstanding loudspeaker.</p>Yes, the enclosure now is about 60L, much more than it should.By the way,when I turned to the high volume, sounds like Overload DIstortion on Midranges and Tweeters,woofers are still ok,estimate to be 90Db above and it's too loud in my room.It works very well with appropriate volume and I do love the sound,If I will make a new crossover according to your drawing to see the difference,will let you know the result.You kind help is really appreciated,I am now is working in Shenzhen of China,very close to HongKong,if you will come to HongKong in chance,please let me know and I am sure I will buy you beer.Thanks again.Walter.
Thanks. Another interesting solution would be (testing) a variable Lpad for the right output of the tweeter to (your) taste, in substitution of the current R1/R2 (2R2/15R).
30W to 50W should be more than enough in this case (tweeter). I don't know where you buy them, but certainly you can find them around or the Internet.
AUDIO ALCHEMY
30W to 50W should be more than enough in this case (tweeter). I don't know where you buy them, but certainly you can find them around or the Internet.
AUDIO ALCHEMY
Thanks. Another interesting solution would be (testing) a variable Lpad for the right output of the tweeter to (your) taste, in substitution of the current R1/R2 (2R2/15R).
30W to 50W should be more than enough in this case (tweeter). I don't know where you buy them, but certainly you can find them around or the Internet.
The current crossover is using R1=2.2Ohm 7W,has no R2 as attached picture.
You mean I should use R1=2.2 Ohm 30W,paralleled R2=15 Ohm 30W
to the tweeter,ok,I will try to do that then let you know if any improvement.
30W to 50W should be more than enough in this case (tweeter). I don't know where you buy them, but certainly you can find them around or the Internet.
The current crossover is using R1=2.2Ohm 7W,has no R2 as attached picture.
You mean I should use R1=2.2 Ohm 30W,paralleled R2=15 Ohm 30W
to the tweeter,ok,I will try to do that then let you know if any improvement.
Attachments
Yes, you can look at graphs in post #23.
Use the new designed crossover that was presented to you and not the old one.
In regard to the L-pad. Many people use the variable L-pad as a means to check for the right balance on high frequencies and later change with fixed resistors. The new crossover is already up to date with the new value for the resistors R1/R2 as was posted on the same post for the new crossover so that design/test step is not needed because is generated by the simulation if correct.
You can use a variable L-pad instead of the general R1/R2 resistors any time in the design if you prefer to have the tweeter adjustment on hand for placement in different rooms, positions, distances, and all.
Use the new designed crossover that was presented to you and not the old one.
In regard to the L-pad. Many people use the variable L-pad as a means to check for the right balance on high frequencies and later change with fixed resistors. The new crossover is already up to date with the new value for the resistors R1/R2 as was posted on the same post for the new crossover so that design/test step is not needed because is generated by the simulation if correct.
You can use a variable L-pad instead of the general R1/R2 resistors any time in the design if you prefer to have the tweeter adjustment on hand for placement in different rooms, positions, distances, and all.
The new crossover has the same problem,distortion. Then I search information on Internet, finally, learnt the tube amplifier 2a3 has no enough power to play this speakers on high volume, 4 watts output / each side, so I borrow an amplifier from my friend to prove if it's right, tube amplifier 200b 30watts output each side, then it works well, both old crossover and new, hardly to believe that I would need to buy a new amplifier, my god.
I decided to play only soft music,then I will need no high volume,haha
Whatever, thanks for your kind help and lead me into the funny DIY world
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