1. Home
    2. >
  2. Forum
    3. >
  3. Car Audio Forum
    4. >
  4. Car Subwoofers Forum
    5. >
  5. Archive through April 20, 2009 Forum
    6. >

Rd Alpha owners

 

jeremy m
Silver Member
Username: Shade

Moxee, Wa U.S.

Post Number: 853
Registered: Nov-06
Posted on   
how much would u say or know a RD Alpha 15 weighs?

i bought 4 of these alphas off a guy...he sent me tracking info for Fed Ex and it's saying each package weighs 13.7lbs for a total of 82lbs.
 

Mark Brockman
Gold Member
Username: Hittin1

TEAM REVOLUTIONLake Charles...

Post Number: 2919
Registered: May-07
Posted on   
Fed Ex often gets shipping weights incorrectly. I would not worryabout it.
They are close to 40#'s or so
 

BernyMac
Gold Member
Username: Bernymac

Phnom PenhCambodia

Post Number: 4614
Registered: Sep-04
Posted on   
When they arrive, tell the driver to wait so you can inspect them. If everything is well, take them. If not, refuse them.
 

Kevin Holden
Gold Member
Username: 04redmach1

Www.rdaudio.net, GA USA

Post Number: 2536
Registered: Mar-06
Posted on   
Most of the time people will lie about weights to save on shipping.

Kevin
 

Stavenmist316
Gold Member
Username: Big_edge_head

Milwaukee, WI

Post Number: 3705
Registered: Mar-07
Posted on   
How can they lie about the weight?
 

State_Property
Gold Member
Username: Stateprop486

Phnom Penh Cambodia

Post Number: 1779
Registered: Jan-08
Posted on   
yeah they are close to 40lbs
 

Ben
Gold Member
Username: B3n07

Louisville, Ky USA

Post Number: 1023
Registered: Jul-07
Posted on   
i work at ups an i hate it when the packages come through that say they are heavier then they really are
 

jeremy m
Silver Member
Username: Shade

Moxee, Wa U.S.

Post Number: 854
Registered: Nov-06
Posted on   
ok....just checking...cuz when i ship i use USPS and they weigh them infront of u.
 

jeremy m
Silver Member
Username: Shade

Moxee, Wa U.S.

Post Number: 856
Registered: Nov-06
Posted on   
ok another question.....what kinda air space does a single alpha 15 need and tuned to what?

i was thinkin like....4.5cu ft each @ 32hz...anyone else have suggestions?
 

Nick V
Gold Member
Username: Tatonka

-[Team Audible Insanity]-

Post Number: 2888
Registered: Mar-07
Posted on   
For an alpha 15, I'd go 3.5-4cuft NET a piece.

As for tuning, that depends strictly on your vehicle and what type of music you listen to.
 

jeremy m
Silver Member
Username: Shade

Moxee, Wa U.S.

Post Number: 857
Registered: Nov-06
Posted on   
sounds good.
 

kyle
Silver Member
Username: Armykyle1

Ms Us

Post Number: 503
Registered: Dec-08
Posted on   
i weighed mine, it was 38lbs
 

jeremy m
Silver Member
Username: Shade

Moxee, Wa U.S.

Post Number: 858
Registered: Nov-06
Posted on   
last question...how much port area per cu ft?
 

Daniel Bonham
Gold Member
Username: Bonhamd

Traverse City, MI

Post Number: 1871
Registered: Nov-07
Posted on   
"Most of the time people will lie about weights to save on shipping. "

agreed - you dont have to go to fedex, ups, or usps to ship the box

many people create accounts and print labels out at home
 

Chad
New member
Username: Liveyman

Post Number: 4
Registered: Apr-09
Posted on   
Sometimes vendors have discounts with shipping services, and the easiest way to apply the discounted price is to lower the shipping weight. This is not uncommon. My Alpha shipping weight was supposedly 14.7 lbs...lol.
 

jeremy m
Silver Member
Username: Shade

Moxee, Wa U.S.

Post Number: 859
Registered: Nov-06
Posted on   
so anyone know how much port area RD recommends per cu ft for the 15" alpha?

Steve? Nick? Scott?
 

Steve Miller
Silver Member
Username: Teamrevolution

ATLANTA, GA USA

Post Number: 613
Registered: May-07
Posted on   
you want to use 32-40 sq inches total for daily.
 

jeremy m
Silver Member
Username: Shade

Moxee, Wa U.S.

Post Number: 860
Registered: Nov-06
Posted on   
32-40 sq" for all 4 15's? or for each one? i'm assuming each 15.

so then 120sq for all 4 15's or could i get away with like 160?
 

Steve Miller
Silver Member
Username: Teamrevolution

ATLANTA, GA USA

Post Number: 617
Registered: May-07
Posted on   
anywere between there will work, For low bass and the real loud sounding bass the 120.

The 160 will work well also and it will pressure better but not have the same sound
 

Mark Brockman
Gold Member
Username: Hittin1

TEAM REVOLUTIONLake Charles...

Post Number: 2968
Registered: May-07
Posted on   
if he is going for more SPL would it help if he dropped the box volume while adding the additional port area?
 

Mark Brockman
Gold Member
Username: Hittin1

TEAM REVOLUTIONLake Charles...

Post Number: 2969
Registered: May-07
Posted on   
i wanted a more musical box for my 18's. the 40^2 in per sub worked out great (tuned to 35 hz)... VERY musical and still loud as fack!
 

jeremy m
Silver Member
Username: Shade

Moxee, Wa U.S.

Post Number: 861
Registered: Nov-06
Posted on   
i want it very musical but still loud...thinkin about doing an interchangable port...also steve...do u recall what upgrades u did to the Alphas i'm getting....J Price had them...he's doing the 20k tahoe build.
 

Steve Miller
Silver Member
Username: Teamrevolution

ATLANTA, GA USA

Post Number: 618
Registered: May-07
Posted on   
yeah i johnathans built by hand, they have all the new parts and upgrades.
 

jeremy m
Silver Member
Username: Shade

Moxee, Wa U.S.

Post Number: 862
Registered: Nov-06
Posted on   
so then what makes them diff. from the alpha max's i guess is what i'm getting at.

I need to know what kinda power i can put on these daily.
 

Mark Brockman
Gold Member
Username: Hittin1

TEAM REVOLUTIONLake Charles...

Post Number: 2975
Registered: May-07
Posted on   
are you planning on running more than 8k?
 

jeremy m
Silver Member
Username: Shade

Moxee, Wa U.S.

Post Number: 863
Registered: Nov-06
Posted on   
i got 1 AT 5k right now...looking to get anotherone soon.
« Previous Thread Next Thread »



Main Forums

Today's Posts

Forum Help

Follow Us