MJL21193 said:
Nope. If you don'y like em you don't like em... so far no one that has heard them hasn't liked them.
dave
PB2 said:
On a 3-way like this you want to choose the bass to mid XO such that BSC is simply a matter of adjusting the woofer level.
dave
I know what you mean John,I feel the same satisfaction with my latest fully active setup .Sure they are not perfect but I find them so completely enjoyable to listen to without feeling the need to change anything.MJL21193 said:
To bad you are 2 hours away (Im in Peterborough) as I would love to take a listen to your creations.
PB2 said:
planet10 said:
Hi Pete,
Yes it's like Dave said. Increasing the output to the woofer will correct baffle step. Like I said above though, I'd like to adjust the crossover point a bit higher and change the slope. I'm not sure if that will be the final piece of the puzzle falling in place, but worth a try.
It was recommended to make the crossovers adjustable during their construction, but in my infinite wisdom I chose not to do that. Live and learn.
planet10 said:
I'm sure I'd like them too, connected to my Yamaha HTR and RS equalizer.
F1 FAN said:
I still have some things to change, in the active amp. The current version was hastily slung together to allow me to use these speakers, so changes there in the future.
Peterborough, eh? I don't get out that far usually. Lindsay for a day last winter for work. Did a School in Cannington a couple years ago, that's about halfway there.
Long drive, for sure.
marce said:
Hi Marc,
What have you be up to? You've been scarce around these parts lately.
You like my speaker stand? 20 litre paint bucket, approx. half full. Blends well with the decor.
🙂
Hi John,
I'm in the middle of moving us all to the other side of the UK, in a hotel during the week, so life is a little bit crazy.
Move, finally on 22nd so once we get settled in etc "I'll be back".
When I get home at the weekend I barley have time between packing to try and catch up on the threads.
So glad I got the Tannoy 2-way actives, its nice to be able to compare the different presentations, and some CD's sound better on one set of speakers than the others. Good news is the new house has a big dinning room, the correct shape for speakers (ie a rectangle with a higher than normal ceiling hight for the UK) so I'm gonna have fun.
Take care🙂
I'm in the middle of moving us all to the other side of the UK, in a hotel during the week, so life is a little bit crazy.
Move, finally on 22nd so once we get settled in etc "I'll be back".
When I get home at the weekend I barley have time between packing to try and catch up on the threads.
So glad I got the Tannoy 2-way actives, its nice to be able to compare the different presentations, and some CD's sound better on one set of speakers than the others. Good news is the new house has a big dinning room, the correct shape for speakers (ie a rectangle with a higher than normal ceiling hight for the UK) so I'm gonna have fun.
Take care🙂
Moving sucks, for sure. I will be up to the same thing this summer - it'll be about the 30th move for me. 
Good luck at your new location. Get settled in and be ready for the next project. 🙂
Good luck at your new location. Get settled in and be ready for the next project. 🙂
So its a satisfying project overall? I would also love to hear these but a bit of a long way 😀 . Hopefully will have a 3 way active myself in due course.
Hi DrEM,
Yes, very satisfying. Take away the complexity of designing and building the active amp, and it would have been less stressful.
Having built and listened to 2-ways with passive crossovers, these are a real eye opener. I've heard the term "revealing" and couldn't apply it to any of my 2-ways. These are beyond revealing - they show everything, making it an intolerable experience to listen to anything badly recorded.
TBH, I can't understand how anyone could be content with a single fullrange driver, when the difference in detail and clarity between these and a well designed 2-way are obvious. How much more would there be between these and a single driver speaker?
To be fair, I've never heard a good one, so I'm might be making a false assumption.
I'll have to go on a road trip one of these days to the west coast and check out Dave's best.
🙂
Yes, very satisfying. Take away the complexity of designing and building the active amp, and it would have been less stressful.
Having built and listened to 2-ways with passive crossovers, these are a real eye opener. I've heard the term "revealing" and couldn't apply it to any of my 2-ways. These are beyond revealing - they show everything, making it an intolerable experience to listen to anything badly recorded.
TBH, I can't understand how anyone could be content with a single fullrange driver, when the difference in detail and clarity between these and a well designed 2-way are obvious. How much more would there be between these and a single driver speaker?
To be fair, I've never heard a good one, so I'm might be making a false assumption.
I'll have to go on a road trip one of these days to the west coast and check out Dave's best.
🙂
MJL21193 said:
Indeed, indeed.
BTW a road-cased set of Fonkens will be hitting the road for a Canadian tour, so we could arrange for them to come to you.
dave
planet10 said:
Details?
I've always wanted to drive across the western part of the country, so I'll be doing that some time anyway. I love the road trip.
I've already been all over the eastern half of the country.
MJL21193 said:
Certainly raising the woofer output is better than nothing, but it is far from an ideal solution. Anyway ... it's your project, enjoy!
Pete B.
PB2 said:
Hi Pete,
I will be re-doing the active amp at some point (soon), and will be using a pair of the Patchwork amps for the bass. Your thoughts on BSC would be greatly appreciated. I didn't bother with BSC as I didn't think it would be needed at the time.
I know how to implement it for a passive xover, but I'm in the dark for active. Any links to point the way?
Here's a recent on axis frequency response taken at ~2 metres out, mic aimed between the tweeter and midrange. Gives an idea of in room response. Three consecutive tests superimposed.
This straight, not thru the EQ, I set the outputs to what sounded good to me.
Attachments
Hi John,
The orange line here is my visual average of your in room response: http://baselaudiolabs.googlepages.com/3wayff.gif
Seems to me that some tilt is needed in both the woofer and mid pass bands. There are several passive line level circuits on the web, I offer one here, it was a very casual experiment, post number 39 there is the one. Links to a specific post don't seem to work there:
http://www.classicspeakerpages.net/IP.Board/index.php?showtopic=2692&st=40
I believe that there are also several OP amps based circuits also on the web. I don't know of one off hand, there is Google of course.
In room response measurements are not usually reliable at mid bass and lower frequencies, however your measurement does tend to show the trend. Dips there are usually destructive interference with boundaries such as the floor or walls if close to them.
Here are my big (those are two 12" woofers) speakers by the way, in case you've not had a look. I concentrated on the sound not the looks, obviously: http://members.aol.com/basconsultants/spkrs.jpg
Pete B.
The orange line here is my visual average of your in room response: http://baselaudiolabs.googlepages.com/3wayff.gif
Seems to me that some tilt is needed in both the woofer and mid pass bands. There are several passive line level circuits on the web, I offer one here, it was a very casual experiment, post number 39 there is the one. Links to a specific post don't seem to work there:
http://www.classicspeakerpages.net/IP.Board/index.php?showtopic=2692&st=40
I believe that there are also several OP amps based circuits also on the web. I don't know of one off hand, there is Google of course.
In room response measurements are not usually reliable at mid bass and lower frequencies, however your measurement does tend to show the trend. Dips there are usually destructive interference with boundaries such as the floor or walls if close to them.
Here are my big (those are two 12" woofers) speakers by the way, in case you've not had a look. I concentrated on the sound not the looks, obviously: http://members.aol.com/basconsultants/spkrs.jpg
Pete B.
Hi John,here is an excellent link for implementing BSC actively. http://www.t-linespeakers.org/tech/bafflestep/bstepcompo.html
I added 3 db of BSC to my speaks but my baffle is only 8.25" wide.
With your baffle being 12" you may not need any.
I added 3 db of BSC to my speaks but my baffle is only 8.25" wide.
With your baffle being 12" you may not need any.
PB2 said:
Hi Pete,
I want to do a complete redesign of the circuit, making the active filter separate from the amps - giving me more flexibility. The one filter/one amp on one board seemed like a good idea at the time, and would be great for a lesser pair of speakers, but it's too limited here.
I would like to make the active filter with independently changeable crossover frequencies and the ability to change slopes. In the original thread, AndrewT recommended SIP sockets to make for easy component swapping.
I would like to incorporate variable BSC giving 0db to 6db adjustment, either to the overall signal (like Rod Elliot does here ), or actively boost to the bass section only.
I looked through your site a while back and saw those speakers. I didn't realize those were 12". I bet they sound great. What did you use for the midrange?
F1 FAN said:
Hi F1,
That circuit looks like the ticket. I would need to make it adjustable, so I would use a socket for C and change R1 to R1 plus a 10K pot. Fix values for R1 and R2 at 2K.
Thanks.
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