Alpha Series v.2

The newly redesigned Alpha series subwoofer has set the bar for SQL subwoofers. The V.2 offers more X-max, increased thermal power handling with cleaner more authoritative low bass extension than the V.1. Like the original Alpha the V.2 sounds great while delivering huge SPL numbers.

Features

  • Available in 12/15/18” models
  • 1500/2000 watts RMS power handling
  • Available in dual two ohm configurations (replace third feature down)
  • Extremely versatile subwoofer that can be used in SPL applications or sound
    quality installs
  • Flat wind voice coil option is available in both dual 1 and dual 2 ohm at a slightly
    higher cost, It increases the RMS power handling by 500 watts while also increasing
    the subwoofers efficiency
  • Paper cone that is heavily damped with long strand Kevlar fibers
  • Wide roll three layer surround foam
  • Dual 1” tall high power 120oz magnets
  • High excursion motor structure
  • Hot forged 25mm deep t-yoke
  • Spider bolted to basket
  • Cast basket
  • High temperature CA glue
  • Black anodized aluminum former
  • Flat wind coil option available at higher cost, adds 500 watts power handling

MSRP

12” = $479.00

15” = $559.00

18” = $659.00

Specifications

18″ D2 18″D1fw 15″ D2 15″D1fw 12″ D2 12″D1fw
FS 22.6 HZ 33.9 HZ 31.9 HZ
38.27 HZ
RE 3.6 OHM 3.6 OHM 3.6 OHM
1.3 OHM
QMS 7.29 5.21 4.45
7.85
QES 0.568 0.522 0.35
0.226
QTS 0.527 0.4745 0.325
0.2193
RMS 14.01 10.27 9.245
7.52
CMS 0.068 MM/N 0.0874 MM/N .121 MM/N
0.0703 MM/N
MMS 719 G 251 G 205.41
245.1 G
BL 25.44 TM 19.22 TM 20.56 TM
18.5 TM
SPL@1W 88.79 DB 91.55 DB 89.89 DB
90.92 DB
VAS 153.74 L 98.94 L 52.35 L
30.374
XMAX 16 MM 16 MM 16 MM
16  MM
XCOIL 53 MM 53 MM 53 MM
53 MM
Cutout 419 mm 349 mm 279 mm
Mounting depth 247 mm 230 mm 198 mm
Displacement .4 cubic ft. .31 cubic ft. .22 cubic ft.

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2 Responses

  1. Box request for Kendall1970 - Car Audio Classifieds
    June 3, 2011 at 5:57 pm | |

    [...] 2005 Altima 2.5s 2. Subs. Make, Model, Size, How many: Rd audio, Alpha v2 series, 12" (x2) Alpha Series v.2 (spec's) 3. Power. How much power per sub: RD Audio – 1750.1 (x2 strapped) mono bass-2900 watts [...]

  2. 3 subs one choice - Realm of Excursion
    December 7, 2011 at 1:20 am | |

    [...] they say xmax is 15mm but I know thats bs http://www.lanzar.com/manuals/OPTI1535D.pdf alpha Alpha Series v.2 __________________ PLEASE VOTE FOR ME IN THE INCRIMINATOR AUDIO GIVE [...]