Emotiva: Shop Now

Notifications
Clear all

Emotiva: Shop Now

Active or passive crossover  

  RSS

Mattreeves
(@mattreeves)
New Member Registered
Joined: 3 months ago
Posts: 3
06/09/2020 12:21 am  

Hi,

I have started an MTM build which may be changed into a small 3 way tower in the future. To avoid designing 2 different crossovers, I started thinking about an active crossover instead of passive. I thought this could be a good development tool that is more easily adjusted than a passive crossover. I have a few amps so cost will not be an issue for the power part of the active route. Are there any reasons not to try the active path and do you have any active crossover suggestions? MiniDSP was my thought but it sounds like they may have a noise issue. Any thoughts would be appreciated. Matt.


MarcoRuiz liked
Quote
Topic Tags
123Toid
(@123toid)
Illustrious Member Admin
Joined: 3 years ago
Posts: 1071
11/09/2020 3:03 am  

@mattreeves mini dsp will probably be your best bet if you think you are going to go three way.  


ReplyQuote

Mattreeves
(@mattreeves)
New Member Registered
Joined: 3 months ago
Posts: 3
13/09/2020 6:14 am  

Thanks. I went for Dayton DSP chip with 2 inputs 3 outputs. I will use 1 per speaker as the crossover. I tried it out driving 3 different drivers and and it’s works really well for this purpose. I also tried out the dsp function with sigma studio and that was very powerful. My plan is to use CSS audio or SB acoustics drivers so hopefully DSP will not be required. I have attached a picture of one of the cabinets. I will finish these off before I buy the drivers.

BBA530CF 58ED 4B6A B2F4 3CC1E6530517
556879E8 4543 4F98 9EF8 51C25209EA0C

@123toid


ReplyQuote
beatmaniaboy
(@beatmaniaboy)
Active Member Registered
Joined: 1 month ago
Posts: 7
16/10/2020 3:01 pm  

I just bought that as well, actually the 2 boards together is basically just a minidsp HD

the minidsp is based on the adau1701 and so is the dayton DSPB, the minihd has 2.1V just like the rca out on the dayton board, should be very similar

i was actually looking at doing the same thing with a sure amplifier!


ReplyQuote

Mattreeves
(@mattreeves)
New Member Registered
Joined: 3 months ago
Posts: 3
16/10/2020 7:19 pm  

Hi, I actually used the TI 2x50 amp from parts express. It was USD$7. It worked very well with the dsp combo. I settled for Dayton Rs180 reference drivers and sb acoustics tweeters. Strangely I have had better luck with this than my Cambridge Audio 200w amp and matching dac removed link I seem to have the noise issues that lots of forums mention but with the simple TI amp I have no signal noise problems. Attached is the speaker graph with green line showing the port tuning frequency. I still need to resolve the power amp issue.

75E549F7 ECBB 4E66 958A 06CDA293029A

 Matt- Australia 


ReplyQuote

Newegg

Share:

Emotiva: Shop Now

%d bloggers like this: