Im gonna pick up a pair for my car so just spreading the word
Pre-Orders for the SD-1 v.2 are open now. I expect to have them before the end of the year.
The pre-order will go on until December 7th.
These subs will throw down in very small enclosures and will now handle much more power than the original SD-1. Ideal for shallow truck enclosures! They utilize a single 6" diameter magnet slug to achieve the necessary flux. Behind the cone you will find a progressive roll spider and a special treatment applied to the back of surround and upper lip of the cone to get more stability from the surround and to bring the Mms to where it needed to be. The leads are offset out to the sides and slightly raised to eliminate the possibility for slapping and the motor itself has quite a bit of clearance for the coil thanks to a deeply bumped back plate.
These are serious SQ subs in a very shallow and efficient package. Made the in the USA to the highest possible standards to last for many years to come. They come with our 2-year standard limited warranty against defects. They also carry our 5-year discounted replacement policy -- should you be at fault for damage to your speaker you can purchase a new one at a discount if you send back the damaged one.
Dual 4-ohm impedance
2.5" diameter voice coil
Kapton voice coil former
400-watts RMS rated power
12mm linear excursion one-way
4.5" mounting depth
Narrow profile foam surround for low Mms and maximum cone area
High quality polypropylene cone and dust cap
MADE IN USA
Qes = 0.437
Qms = 4.545
Qts = 0.399
Fs = 28.77 Hz
VAS = 56.92 L
Mms = 88 grams
Cms = 337 uM/N
RE = 7.31 ohms (series)
BL = 16.55 N/A (series)
Le = 2.13 mH (series)
SEALED = 0.95 ft^3 with no poly-fill stuffing at all and as small as 0.5 ft^3 with heavy poly-fill stuffing. Anywhere in between with varying levels of poly-fill stuffing works great. You will get an F3 around 52 - 55 Hz in that range.
PORTED = 1.75 ft^3 tuned to 30 Hz for a smooth response down to a 30 Hz F3. A smaller 1.25 - 1.50 ft^3 tuned to 35 Hz can be used for a "peakier" response if that is desirable for the listener.
$175 shipped each in the continental 48 states on this pre-orer (MSRP is $229)
Paypal me at firstname.lastname@example.org to place your order now.