FS: 15" GCA XXX - Custom Build

[OldSchoolRF 10+ year member]

1. Product:

Custom 15" GCA XXX

2. Specs:

RE Audio '03 XXX Motor

Black 15" 12 Spoke Basket ...

PP Cone with Tall Foam Surround

3" 8 Layer D4 Aluminum Voice Coil

8" Progressive Roll Spiders with Dual Leads

4 Gauge Chrome Push Terminals

8" GCA Black Honeycomb CF Dust Cap

Custom XXX Logo

Rubber Mounting Gasket

3. Description/Condition:

This beauty features a minty 2003 RE Audio XXX motor with XBL^2 and a brand new 15" black 12 spoke basket with 4 gauge chrome push terminals. The voice coil is an oem style 8 layer flat wound aluminum D4 and it has dual 8" progressive roll spiders with dual leads. It also features a very sturdy PP cone with tall foam surround, a 8" GCA Honeycomb carbon fiber dust cap with custom logo and rubber mounting gasket. ... Rated to take 2k daily, this is a sub for people looking for great sound quality and high levels of output. It's the best of both worlds!

4. Price: :

$325 plus actual shipping

4b. Trades:

Looking for old school RF 1500bd

5. 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)).

Click to read more...

 

[gckless 5,000+ posts]

Is the coil underhung?

 

[OldSchoolRF 10+ year member]

Is the coil underhung?

The XBL^2 motor uses a voice coil nearly as short as that of the traditional underhung unit, which yields the typical advantages of an underhung design: low moving mass and low inductance. At the same time, the XBL^2 motor is considerably flatter in BL, has equivalent excursion, and uses a much shorter top plate than the underhung unit.

Compared to the overhung designs, the shorter coil length means more mechanical clearance in the motor and higher tolerance of rocking. Combine this with a flatter BL curve, lower inductance, and lower moving mass and the advantages of XBL^2 over overhung topologies are apparent.

 

[gckless 5,000+ posts]

The XBL^2 motor uses a voice coil nearly as short as that of the traditional underhung unit, which yields the typical advantages of an underhung design: low moving mass and low inductance. At the same time, the XBL^2 motor is considerably flatter in BL, has equivalent excursion, and uses a much shorter top plate than the underhung unit.
Compared to the overhung designs, the shorter coil length means more mechanical clearance in the motor and higher tolerance of rocking. Combine this with a flatter BL curve, lower inductance, and lower moving mass and the advantages of XBL^2 over overhung topologies are apparent.

I understand the topology, I was wondering if this coil was. I assume so since you said it was OEM, but wanted to know for sure.

 

[OldSchoolRF 10+ year member]

I understand the topology, I was wondering if this coil was. I assume so since you said it was OEM, but wanted to know for sure.

Oh sorry man. Yes this has an original length coil to utilize XBL^2.

 

[Cloud77]

the best. GLWS

 

[OldSchoolRF 10+ year member]

Still available! Looking for old school RF 1500bd.

 

[OldSchoolRF 10+ year member]

Still available. Make an offer. Will consider trades for AudioControl Epic 160, RF 1500bd or possibly other things..

 

[quakerroatmeal 10+ year member]

Wish this was a dvc2. Beautiful sub.

 

[allauto6293 10+ year member]

Still available. Make an offer. Will consider trades for AudioControl Epic 160, RF 1500bd or possibly other things..

I have an epic 160. Pm me what u thinking

 

[gckless 5,000+ posts]

Man I really wish I could sell my sub, I want this one so bad. Don't know how this is still here.

 

[Cloud77]

you got some ebay bids =]