Scrappydue Posted September 18, 2015 Share Posted September 18, 2015 I wanna order 10 more lol Quote Link to comment Share on other sites More sharing options...
babadono Posted September 22, 2015 Share Posted September 22, 2015 Scrappy, Derrick et al, Which ones do you guys go with dual 2s or dual 4s? Quote Link to comment Share on other sites More sharing options...
wvu80 Posted September 22, 2015 Share Posted September 22, 2015 I admire you guys for recognizing a deal and moving on it immediately. I usually think things to death, then end up procrastinating so long that I miss my window of opportunity. I'd like to have a couple of 18"s but I don't have space for them, and I certainly don't have a plan for them. That doesn't stop me from coveting a great deal. 1 Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted September 22, 2015 Share Posted September 22, 2015 Scrappy, Derrick et al, Which ones do you guys go with dual 2s or dual 4s? It all depends what your amp can handle. Do you want your amp to see a 1, 2, 4 or 8 Ohm load? Quote Link to comment Share on other sites More sharing options...
Superdave Posted September 22, 2015 Share Posted September 22, 2015 Which ones do you guys go with dual 2s or dual 4s? Most go D4. Quote Link to comment Share on other sites More sharing options...
babadono Posted September 23, 2015 Share Posted September 23, 2015 Scrappy, Derrick et al, Which ones do you guys go with dual 2s or dual 4s? It all depends what your amp can handle. Do you want your amp to see a 1, 2, 4 or 8 Ohm load? Yea I knew as soon as I posted this it of course depends on what you need/want. Silly question, my bad. Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted September 23, 2015 Author Share Posted September 23, 2015 (edited) I got two of the SI D4 drivers and put them in a dual box. These could be wired together for a 2 or 8 ohm load. I used one of my I Nuke 3000 DSP amp and wired them to a 4 ohm load, I think, lol. It's a different and slightly more complex wiring but, the amp seem to not have a problem driving them at full tilt. The I Nukes don't really like loads lower than 4 ohms. If I recall correctly the HT SI drivers ohm load tested slightly higher than 2 and 4 ohm respectively for the D2 and D4 drivers. The I Nuke 3000 will deliver slightly over 820 watts stereo or dual Mono and 3000 watts bridge to 4 ohm loads. Either of these are fine for driving two HT SI drivers. The drivers are 600 RMS. You do not want to exceed 1000 watts because the thermal capacity of the driver with go before Xmech which is frequency/power dependent. Edited September 23, 2015 by derrickdj1 Quote Link to comment Share on other sites More sharing options...
Scrappydue Posted September 23, 2015 Share Posted September 23, 2015 (edited) dual Mono and 3000 watts bridge to 4 ohm loads. you wish. not even close to 3000. figure 50% for safe numbers. come on derrick you should already know that. Edited September 23, 2015 by Scrappydue Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted September 23, 2015 Author Share Posted September 23, 2015 Those are the specs in the manual. Some of the bench test from AVS show closer to 2000-2200 watts which is plenty for the SI and Ultimax drivers. I am running the dual SI box in stereo and the amp seem to handle things pretty well. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted September 23, 2015 Share Posted September 23, 2015 Derrick, when do you sleep? Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted September 24, 2015 Author Share Posted September 24, 2015 I was up late last night, lol. My wife thinks I sleep to much. Today I swithch to bridge mode to see if I can tell a difference running the SI drivers. Quote Link to comment Share on other sites More sharing options...
Scrappydue Posted September 24, 2015 Share Posted September 24, 2015 Difference in bridge mode? Or difference in si vs ultimax? Quote Link to comment Share on other sites More sharing options...
wvu80 Posted September 24, 2015 Share Posted September 24, 2015 I was up late last night, lol. My wife thinks I sleep to much. Today I switch to bridge mode to see if I can tell a difference running the SI drivers. I'm guessing your Golden Ears hear no difference. Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted September 24, 2015 Author Share Posted September 24, 2015 Difference in bridge mode? Or difference in si vs ultimax? The dual box has the SI drivers. I switched the amp to bridge mode 4 ohm load. It seems to provide more power on first impression but, it may be like using the two RCA inputs on a plate amp and the only real difference is the gain structure. The SI and UM 18 sound basically the same. Quote Link to comment Share on other sites More sharing options...
babadono Posted November 11, 2015 Share Posted November 11, 2015 Just got 2 of these drivers a week back. Waiting for Erich at DIYsound to come through with cabs. Took them out of their packing boxes last night to ohm out voice coils to make sure they're OK because it maybe a while before i get to building them. Anyway my first thoughts about these drivers are they sure are purdy. Its a shame they have to be put in a cabinet! Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted November 12, 2015 Author Share Posted November 12, 2015 Just got 2 of these drivers a week back. Waiting for Erich at DIYsound to come through with cabs. Took them out of their packing boxes last night to ohm out voice coils to make sure they're OK because it maybe a while before i get to building them. Anyway my first thoughts about these drivers are they sure are purdy. Its a shame they have to be put in a cabinet! Congrats on the drivers. We will look forward to the build with pic's. Are you going sealed 4 cu ft boxes or a Stonehenge? Quote Link to comment Share on other sites More sharing options...
babadono Posted November 12, 2015 Share Posted November 12, 2015 I wanted to do Stonehenge but Erich says no go. He's not going to order up any more. So sealed it is. Even with the sealed for this driver he had to do a special order. So I guess this means I have to figure out how to post pictures here huh? Quote Link to comment Share on other sites More sharing options...
wvu80 Posted November 12, 2015 Share Posted November 12, 2015 (edited) I wanted to do Stonehenge but Erich says no go. He's not going to order up any more. So sealed it is. Even with the sealed for this driver he had to do a special order. So I guess this means I have to figure out how to post pictures here huh? I wonder why no more Stonehenge? It was a cool design with that fancy bracing. +++ Why are you going sealed? I would think big ported box would be the way to go. Edit: Never mind, I just checked. The 18" sealed is the biggest thing they have. The only ported 18" flat pack was the Stonehenge. FYI I have a 15" sealed sub 3.0 cuft and the flat pack Erich puts out is the greatest thing since sliced bread. And BTW, if you find a sub box over at Parts-Express it won't hurt anybody's feelings. Eric does those for PE. Edited November 12, 2015 by wvu80 Quote Link to comment Share on other sites More sharing options...
babadono Posted November 12, 2015 Share Posted November 12, 2015 wvu80, This will be my first sub build and my first woodworking project in like 25 years. I want to start easy. Quote Link to comment Share on other sites More sharing options...
Paducah Home Theater Posted November 13, 2015 Share Posted November 13, 2015 The SI and UM 18 sound basically the same. Interesting. Was wondering if the SI's sounded any better due to the surround. The data bass guy said a broken in one was about the most compliant suspension he's seen. Quote Link to comment Share on other sites More sharing options...
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