I've been planning to build a pair of 2-way speakers according to jkim's 'poor man's high end' design.
Link to this design here:
2-way MT: SB Acoustics SB17NRXC35-8 and Vifa DQ25SC16-04 (Poor Man's High End) -
Techtalk Speaker Building, Audio, Video Discussion Forum
In my quest of sourcing the parts I have noticed that the Vifa DQ25SC16-04 tweeter is hard to find here in europe.
I've wondered if I could swap it out for the BC25SC06-04 without much change to the original crossover design.
I could go through the trouble of loading up the data in XSim but as I understand it in the original design jkim used speaker measurements instead of the manufacturer data. I do not have the required equipment to measure this data myself.
Could someone look at the datasheet and design and give me some advice on whether I can swap these 2 tweeters in the design and if I need to make changes to the crossover design?
Link to this design here:
2-way MT: SB Acoustics SB17NRXC35-8 and Vifa DQ25SC16-04 (Poor Man's High End) -
Techtalk Speaker Building, Audio, Video Discussion Forum
In my quest of sourcing the parts I have noticed that the Vifa DQ25SC16-04 tweeter is hard to find here in europe.
I've wondered if I could swap it out for the BC25SC06-04 without much change to the original crossover design.
I could go through the trouble of loading up the data in XSim but as I understand it in the original design jkim used speaker measurements instead of the manufacturer data. I do not have the required equipment to measure this data myself.
Could someone look at the datasheet and design and give me some advice on whether I can swap these 2 tweeters in the design and if I need to make changes to the crossover design?
Attachments
start by comparing the impedance of both tweeters at the crossover frequency, and their sensitivities
You can, with just 1 or 2 more ohms on the tweet resistor, but, having worked with both these tweeters, I wouldn't. I actually went the other way, replacing the -06 with the DQ in an existing design and it was way better. However, something like the SB 26STCN would be even better than the DQ, but might require a bit more change to the x-o.
There's a big archive of SB Acoustics designs at Madisound:
SB Acoustics & Satori Brand Archives - Madisound Speaker PDF Library
I think you can pick and choose a crossover and a tweeter...
As it goes, Michael Chua thought that tiny Vifa waveguide tweeter wasn't the easiest thing:
Flamingo2 – Tang Band W6-789E with Peerless BC25SC08-04 – AmpsLab
SB Acoustics & Satori Brand Archives - Madisound Speaker PDF Library
I think you can pick and choose a crossover and a tweeter...
As it goes, Michael Chua thought that tiny Vifa waveguide tweeter wasn't the easiest thing:
Flamingo2 – Tang Band W6-789E with Peerless BC25SC08-04 – AmpsLab