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View Full Version : Buy one sub and get the other for $20!



Vertex Audio
06-30-2012, 01:12 AM
Item(s) for Sale:
Hey Guys,

This offer is for a very limited time, this weekend only, through this add. If you buy 1 Ultra A-12 12" subwoofer at $179.99 and get a second one for only $20, shipping included! We want to get the word out about these amazing subs! We know Ultra is not a well known brand. But ask anyone who has owned one and they will tell you they love their Ultra subs. Ultra makes extremely well made products, all are made here in the United States. Give them a try, you won't be sorry you did! Be sure to shoot us a pm if interested! Heres a link to the product on our website!

Ultra A-12 - Vertex Audio (http://www.vertexaudio.com/store/pc/Ultra-A-12-6p268.htm)

Thanks!


Item(s) Description/Condition:


PRODUCT DETAIL


Speaker Series
A-12
Model Number
A12-D4
List Price
$179.99
Product Shipping Weight
N/A

PRODUCT SPECIFICATIONS


Driver Type
Subwoofer
Nominal Diameter
N/A
Power Handling (RMS)
500watts
Impedance
DVC 4 Ohm
Sensitivity
2.83volts
Frequency Response

Voice Coil Diameter
2
Magnet Weight


THIELE-SMALL PARAMETERS


DC Resistance (Re)
4.19
Voice Coil Inductance (Le)
N/A
Resonant Frequency (Fs)
27.17Hz
Mechanical Q (Qms)
6.06
Electromagnetic Q (Qes)
0.65
Total Q (Qts)
0.59
Diaphragm Mass Inc. Airload (Mms)
172.85g
Mechanical Compliance of Suspension (Cms)
198.5
Surface Area Of Cone (Sd)
0.0483
Volume of Displacement (Vd)
N/A
BL Product (BL)
13.75TM
Compliance Equivalent Volume (Vas)
65.77liters
Maximum Linear Excursion (Xmax)
0.433

MATERIALS OF CONSTRUCTION


Cone / Diaphragm Material
N/A
Surround Material
Rubber
Dual Voice Coil
No
Basket/Frame Material
Cast Steal
Shielded


MOUNTING INFORMATION


Overall Outside Diameter
12 3/8
Mounting Depth
5.95"
Baffle Cutout Diameter
10 15/16
Driver Displacement
N/A


Price:




Shipping and Miscellaneous Item Information:




Item Pictures:
(List pictures in this section, 1st picture should be your username/date if you have less than 10 positive feedbacks with the i-Trader system or less than 10 references that you have sold to in the past. (These must be listed in your signature, or a link provided to a feedback thread listing these references)).

disturbed471985
06-30-2012, 04:16 AM
what size ported does each require?? Any better deals on multis?? Think 6 or 8..

Vertex Audio
06-30-2012, 02:34 PM
what size ported does each require?? Any better deals on multis?? Think 6 or 8..
What we found to be the best size port was a 4" port 13" long. Also this deal is only for the 12" subs for right now, sorry!

armykyle1
06-30-2012, 02:39 PM
Nice!

Glad to see you're still kicking it man! I miss my CDTs

mrmitchell
06-30-2012, 02:39 PM
What we found to be the best size port was a 4" port 13" long. Also this deal is only for the 12" subs for right now, sorry!

I think he means 6 or 8 12s

Vertex Audio
06-30-2012, 02:40 PM
what size ported does each require?? Any better deals on multis?? Think 6 or 8..
It was also used in a 1.5 cubic ft box. We did a lot of testing with this sub.