Hello all
To save re-iterating actually what's going on here take a look at this thread:
Perceive v1.0 Thread
In it you'll find details of the Perceive v1.0 such as drivers, construction, lots of questions/answers on virtually all aspects of design such as box construction, drivers etc. There is also an interesting discussion on the merits and implemention details of a full digital active XO with digital room correction (DRC) using a dedicated PC and software that provides quite startling quality.
During this time the v1.0 took some shifts and turns throughout the few months I'd spent building, testing and tweaking and compared to the original plan the following had changed:
With all these changes it simply felt like a fudge and that a complete rebuild was in order to take stock of the tweaks and modifications, especially the lowpass driver change.
As it stands now I'm using the following drivers:
I'll post some specifics on amplification and XO details later on the thread.
Scale drawing of the v2.0:
[IMGDEAD]http://img.villagephotos.com/p/2005-7/1050288/laminar3.jpg[/IMGDEAD]
Not really done a great deal as I've been modelling enclosures for the W22 and looking at existing designs using this driver to see what other designers thought. Got that sorted though and I started a couple of days ago on cutting.
Here's the results so far:
[IMGDEAD]http://img.villagephotos.com/p/2005-7/1050288/bassmik2.JPG[/IMGDEAD]
Lots more to do obviously but my aim is to have these finished by Christmas ready for the holidays
More to come over the next few weeks.
Cheers,
Ant
To save re-iterating actually what's going on here take a look at this thread:
Perceive v1.0 Thread
In it you'll find details of the Perceive v1.0 such as drivers, construction, lots of questions/answers on virtually all aspects of design such as box construction, drivers etc. There is also an interesting discussion on the merits and implemention details of a full digital active XO with digital room correction (DRC) using a dedicated PC and software that provides quite startling quality.
During this time the v1.0 took some shifts and turns throughout the few months I'd spent building, testing and tweaking and compared to the original plan the following had changed:
- I'd changed the analogue active XO to full digital and saw a big improvement especially with DRC/EQ.
- The loading of the bass cabinet was changed from sealed to ported to help cure a very slightly muffled lower midrange/upper bass and to create a much better transition to the ATC midrange.
- The 6 amps that are used to tri-amp the speaker switched from Rod Elliots ESP P101 to Krell Clone and then to AKSA 55 & 100.
- Swapped the ATC SM75-150 for the SM75-150S 'Super' version, I got a pretty good deal here and only paid £100 for this swap
- And then lastly, I switched out the Seas 4 x L22's used for the lowpass to 2 x Seas Excel W22's for an incremental upgrade in sound quality.
With all these changes it simply felt like a fudge and that a complete rebuild was in order to take stock of the tweaks and modifications, especially the lowpass driver change.
As it stands now I'm using the following drivers:
- Scanspeak R2904 Ring Radiator Tweeter
- ATC SM75-150S 3" Dome Midrange
- Seas W22EX001 8" Bass
I'll post some specifics on amplification and XO details later on the thread.
Scale drawing of the v2.0:
[IMGDEAD]http://img.villagephotos.com/p/2005-7/1050288/laminar3.jpg[/IMGDEAD]
Not really done a great deal as I've been modelling enclosures for the W22 and looking at existing designs using this driver to see what other designers thought. Got that sorted though and I started a couple of days ago on cutting.
Here's the results so far:
[IMGDEAD]http://img.villagephotos.com/p/2005-7/1050288/bassmik2.JPG[/IMGDEAD]
Lots more to do obviously but my aim is to have these finished by Christmas ready for the holidays
More to come over the next few weeks.
Cheers,
Ant