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System DSP replacement

My system consists of Bastani dual 12" full range open baffles and 4 Bastani subwoofers ; one pair 15", one pair 12". Driving the open baffles is a pair of DejaVu audio 300B monoblocks. The subs are driven by some old amps pulled out of storage : a pair of Monarchy SM70's running in mono driving the 15" subs. Then, a pair of prototype amps, also 70 watts, built by a friend driving the 12" subs. The preamp is the Supratek SET / 6SN7. This unit is unique in having dusl signal outputs. The 6SN7's drive the subs and the SET's, 45'S, drive the open baffles. I'm happy with the sound. 

Now to my question. Between the preamp and the amps is Dayton Audio DSP-408.  This unit sounds much better after adding a LPS. However, this a $200 unit built around old op-amps. My feeling is that the sound quality of the system could be elevated considerably if I replaced the DSP with something better. The replacement would need to be 4 channels in, 6 channels out. Also the Dayton Audio user interface is very flexible and runs on a iPad. I'm looking for suggestions for the replacement. 

tubes4good
dtorc
105 posts
 

I see your post is from a month ago, but here goes. I too had open baffle speakers (Emerald Physics 2.8) that had two 15" woofers per side, and required DSP in order to get all the drivers in balance. 

 

The manufacturer provided a miniDSP, which was competent, but I thought was hard to use and calibrate. So, I went to a DSPeaker Anti-Mode 2.0, which sounded much better, and was a snap to calibrate. it worked like a charm for years. I then upgraded to the DSPeaker X4, which was better, but probably not necessary. 

 

I see the Anti-Mode 2.0 for sale used for $500 or so. That would make a big difference, i think.

 

David 

tubes4good OP
63 posts
 

@dtorc Thanks for the information. I'll check out the DSpeaker units.

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