SI MAG v4 D2 -- WOW.

[TheRESONANCE]

First of all, i would like to thank DIYMA and most of all Nick of Stereo Integrity for giving me such an opportunity.

Subwoofer was received from a give-away thanks to Nick !

Because my car was temporarily out of order, Listening was done locally with Elvisjer (member of diyma forums). Thanks again. :]

Initial thoughts:
Package arrived in perfect condition as well as on time. From the moment I unboxed the SI, I was greeted with optimism. I was immediately welcomed by several of Nick's promotional items; Two T-shirts and a couple of Decals. Edging to the point, i unboxed the Sub itself not knowing what to expect.- To be honest I was completely curious as to how such a unique subwoofer profile would respond. The build quality is superb and assuring: Clean glue joints and neatly soldered terminals. The sub itself is only 5 1/2 inches tall.. a big plus for installations !!

The only problem that i had was when installing the sub. (If it's a problem at all) The Trim ring which surrounds the sub is a bit thick and difficult to deal with. However since there was two of us, it wasn't such a big problem.. I would recommend getting a friend to help hold it off while you mount it in. However with such a big payback in return, Such a thing wouldn't deter me at all.

I will be comparing with several other subs as well.
SI MAG v4 D2 & DIYMA R12


Equipment Used used:
The Si Mag v4 d2 and the Diyma r12 were positioned in a 1 cubic ft. sealed box, 3/4" MDF wood. A bit big for the diyma's original 'recommendations'.
All subs were played from a JL 1000/1. Sensitivity was adjusted accordingly. For the most part, set on lower than usual. No time was given for the Mag to 'break in'. Fresh out of the package into the box, then juiced.

Tracks :
For the most part, Focal's Demo disks were used- mainly to test blending and tone. Several tracks from Tech N9ne were also used to test authority, power, and quickness. Other random tracks were used for recreation and curiosity.

Listening :

First up.. DIYMA R12".. "Seriously..guys- Where is it?". *blank stare*...
To my dismay, the r12 was the least favorite from the pack...however, I am the type of person who seeks a little thump. So i admit, i am bias towards the r12. Don't get me wrong here, It's a great sub and its SQ is outstanding. But in due comparison with the SI MAG.. it was nothing close. Maybe my ears aren't 'audio-phile' quality.. But i don't understand what the hype is all about.
I think it would take about 2-3 Diymas to equal a single Mag.
While I understand that the sub was designed to be completely transparent and undetectable..I can't imagine how anyone could rock out to anything but classical music on it. If you're looking for a 40-pounder that won't disturb the stingy neighbors..This is the sub for you!
Overall, just not my cup of tea. I'm sure it suits others' well.

Mag : Blending was incredibly easy. No matter what track we threw at the Mag, it never let up. Even when we tracked up the low pass to 100hz..it never skipped a beat. Never did it have a problem reproducing down low either. It was transparent and blending when needed to be.. throughout the Focal tracks, But did not hold a thumb back when we wanted big thumping for tracks such as Tech N9ne's. Rather than classifying it as an SQ pure sub.. I would feel more than safe to say that it could pass as an SQL.-
With 1000 watts on tap, The Mag put up like a champ and showed no sign of abuse whatsoever. The sound is full and warm. It would be HARD for anybody in my opinion to dislike the sub-
My favorite was when we put it up to a speed test with Tech N9ne's "Stamina" intro...It literally felt like my heart was speeding up with the beat. It knocked hard and surprisingly quick!..--As fast as my 8w7's. There is no doubt in my mind.. This sub has serious cajones.

Overall ? -- Quick, Powerful, Full, Clean, Low. Enough said.-Wait, did i mention Shallow mount ?
this may very well be one of the most 'safest' of subs. Having the capability to suit almost any genre in my opinion. However i have only heard 8 different subs through my experience...
If you're looking for your next sub, look no further.. Si Mag v4 d2. you will not be dissapointed ! Hands down you won me. congrats Nick and everyone at Stereo integrity for designing such a sub!

I am thinking on getting a 2nd !

[Electrodynamic]

Cool man! Thanks for posting the review over here. And a big thanks for comparing it to the DIYMA, as it seems to be playing up to be its biggest competitor (not sure why though - the Mag can handle a LOT more power than the DIYMA and is a solid inch shallower and a good 17 lbs lighter) even though they're not made anymore.

[hobie1dog]

Thanks for the review...I'm looking for a track that has a solo kick drum that starts off slow and progressively gets faster, so that I can judge if a sub can remain clean and keep the beats seperated...it's on a bass CD somewhere.

By all means definitely buy 2 of these things....there's no such thing as having too much "Subwoofage"

[Electrodynamic]

ttt

[727south]

how do they compare to IDQv.3? how much they cost?

[Electrodynamic]

Mag v4's are no longer available. I think if you search DIYMA you may be able to pick up one used.