Originally Posted by grassy
Hi guys, i have the velodyne dd15+ sub and i am wondering if anyone knows if this sub has a "Direct mode" as i cant find any info about it in the manual. I am about to do an audyssey calibration setup on my AVPA1HDA processor and need to switch it to "ON" according to my AVP processor setup instructions...
If your AVP has not been been upgraded to MultEQXT32, then see my post just above about a single sub and XT-equipped processor. If you have the upgrade, then I agree with Steve Coliier that you need not necessarily use the in-built Velo EQ. That is state-of-the-art DSP RC and far more powerful than MultEQXT (32X!). And your plan to add a second sub and traps is excellent! I assume there will be measurements taken to guide all that.
Once I upgraded my AVR from the Denon4310 (MultEQXT) to the 4311 with XT32 withSubEQHT and added a second DD10, I positioned the subs using the DD10's internal EQ to guide me in achieving athe flattest FR I could get. I have no bass traps in the family room and I don't have a separate measuring system such as OmniMic. For the "subhaul/crawl" I sent the virgin, un-EQ'd Velo test tone to both subs through the processor with all EQ including Audyssey OFF. This worked quite well guiding strategic placement of the subs to counter room modes. I ended up with them mid-wall on opposite walls. I did not run either Velo sub EQ at all. BTW, one wants both subs firing simultaneously and the EQ applied to both together regardless of what the EQ is. In my AVR, this is done using SubEQHT, which helps set level and distance for each sub, but then pings them together for measurement and applies the EQ to both.