Carbon fiber embossed Gately Audio dustcap with carbon fiber cone attached to a high roll surround. 

Chrome coated GATELY engineered basket.

Dual Progressive nomex spiders with stitched oversized flat wound tinsel leads connect.

18” direct leads are 12 ga OFC (red/black) Sky High Car Audio speaker wire. 

Relentless 6.5” use a 2” 4 layer high temp copper wound while the 8” Relentless subwoofers use a 2.5” voice coil of the same quality. 

Relentless  8” have a motor structure that consists of a 3 layer Y35 ferrite magnet that measures 6.7” in diameter by 0.79” thick per slug. 

For dimensions, see product specifications in images.

Cutout Diameter 7.24"
Mounting Depth 6.69"
Weight : 30 lbs

Model: Relentless D2
f(s) = 54.74 Hz
Q(ts) = 0.5885
V(as) = 2.284 liters (0.08066 cubic feet)
SPL = 79.49 dB SPL 1W/1m
Nominal Diam. = 0 mm (8 in.)
R(e) = 4.451 Ohms
Q(es) = 0.6519
Piston Diam. = 158.8 mm (6.25 in.)
SPL = 82.03 dB SPL 2.83 Vrms
C(ms) = 4.2e-05 mm/N
Z(max) = 45.78 Ohms
L(e) = 4.409 mH at 1kHz
Q(ms) = 6.053
BL = 21.87
n(0) = 0.0548 %
M(ms) = 203.6 grams

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Model: Relentless 8 D3
f(s) = 54.88 Hz
Q(ts) = 0.5944
V(as) = 2.409 liters (0.08508 cubic feet)
SPL = 79.63 dB SPL 1W/1m
Nominal Diam. = 0 mm (8 in.)
R(e) = 6.375 Ohms
Q(es) = 0.671
Piston Diam. = 158.8 mm (6.25 in.)
SPL = 80.61 dB SPL 2.83 Vrms
C(ms) = 4.4e-05 mm/N
Z(max) = 55.88 Ohms
L(e) = 5.511 mH at 1kHz
Q(ms) = 5.21
BL = 25.09
n(0) = 0.05658 %
M(ms) = 192.1 grams

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Model: Relentless 8 D4
f(s) = 54.84 Hz
Q(ts) = 0.5853
V(as) = 2.789 liters (0.0985 cubic feet)
SPL = 80.15 dB SPL 1W/1m
Nominal Diam. = 0 mm (8 in.)
R(e) = 8.543 Ohms
Q(es) = 0.6879
Piston Diam. = 158.8 mm (6.25 in.)
SPL = 79.86 dB SPL 2.83 Vrms
C(ms) = 5.1e-05 mm/N
Z(max) = 57.29 Ohms
L(e) = 6.621 mH at 1kHz
Q(ms) = 3.925
BL = 26.67
n(0) = 0.06377 %
M(ms) = 166.1 grams