HYDRO-8 // 300 Watt RMS 8 Inch Shallow Mount Subwoofer
HYDRO-8 // 300 Watt RMS 8 Inch Shallow Mount Subwoofer
HYDRO-8 // 300 Watt RMS 8 Inch Shallow Mount Subwoofer
HYDRO-8 // 300 Watt RMS 8 Inch Shallow Mount Subwoofer
HYDRO-8 // 300 Watt RMS 8 Inch Shallow Mount Subwoofer
HYDRO-8 // 300 Watt RMS 8 Inch Shallow Mount Subwoofer

HYDRO-8 // 300 Watt RMS 8 Inch Shallow Mount Subwoofer

Regular price 25% OFF Before: $99.99 Sale pricePrice: $74.99
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$74.99
COIL CONFIGURATION
Details

CT Sounds is proud to introduce the hydro shallow mount subwoofer series after completing a rigorous R&D process spanning 2 years! Our goal was to engineer a 300-watt 8” shallow-mount subwoofer with a mounting depth below 3.5” that was suitable for both sealed & ported enclosures. To achieve this, we focused on the EBP (Efficiency Bandwidth Product). As a general rule, EBP < 50, is used only for sealed enclosures, EBP 50 - 100, is used for both, and EBP > 100, is used only for ported enclosures. EBP = FS/QES.

Quick Facts:
RMS Power: 300 Watts
MAX Power: 600 Watts
Voice Coil Configuration: Dual 2 Ohm
Use Cases: Sealed & Ported Enclosures

Our 1st prototype utilized a 50.8 mm voice coil & 30 oz magnet resulting in a high QES rating of 1.05 and low EBP of 44.1. The 2nd prototype utilized a 44.7 mm voice coil & 30 oz magnet resulting in a slightly lower QES rating of 0.843 and a slightly higher EBP of 54.8. After the 1st and 2nd prototypes, we determined a larger motor assembly was needed to provide a more controlled electrical system (lower QES). This led us to invest in a custom-tooled basket (used in the final prototype) to keep the mounting depth below 3.5”.

The 3rd and final prototype uses a 44.7 mm voice coil & 40 oz magnet resulting in a reduced QES rating of 0.577 and a balanced EBP of 80.07. In testing, we ran into mechanical noise due to the larger motor assembly and voice coil in a confined space. Therefore, we invested in a custom-tooled cone to maximize the excursion capability by creating an equal distance between the cone, spider, and bottom plate. The result is an 8” shallow-mount subwoofer that is extremely responsive in both sealed & ported enclosures.

Specs
General Specifications:
Product Type: Car Subwoofer
Subwoofer Size: 8"
Voice Coil Configuration: Dual 2 Ohm
RMS Power: 300 Watts
MAX Power: 600 Watts
Voice Coil Type: 1.75 Inch - 4 Layer High-Temperature Copper Voice Coil
Magnet Type: Y35
Bottom Plate Type: Low Carbon Iron
Surround Type: Dual White Stitched Competition Mega Foam Surround
Cone Type: Composite Paper with 3% Carbon Fiber Reinforcement
Tinsel Lead Type: Single Braided Flat Copper Tinsel Leads
Terminal Type: 12 Gauge Push Terminals
Basket Type: Stamped Steel
Spider Material: Poly-Cotton Blend
T/S Parameters:
Qes: 0.577
Qms: 6.549
Qts: 0.531
Fs: 46.20 Hz
Vas: 10.298 L
Mms: 82.895 g
Cms: 0.143 m/N
Re: 3.9 Ω
Bl: 12.751 Tm
Le: /
Sd: 227 cm²
Xmax - Single Way (mm): 8 mm
Xmax - Single Way (cm): 0.8 cm
Vd (Sd*Xmax): 181.6 cm²
SPL: 84.48 dB
Box Specs
Subwoofer Measurements:
Cutout diameter 7.51"
Overall diameter 8.77"
Mounting depth 3.26"
Box Specifications:
Displacement 0.02 ft3
Box Recommendations:
Sealed 0.35 ft3
Ported 0.875 ft3
Tuning Frequency 36 Hz
Port Area 14 in2

*Enclosure recommendations do not account for subwoofer, bracing, and port displacement.

Details

CT Sounds is proud to introduce the hydro shallow mount subwoofer series after completing a rigorous R&D process spanning 2 years! Our goal was to engineer a 300-watt 8” shallow-mount subwoofer with a mounting depth below 3.5” that was suitable for both sealed & ported enclosures. To achieve this, we focused on the EBP (Efficiency Bandwidth Product). As a general rule, EBP < 50, is used only for sealed enclosures, EBP 50 - 100, is used for both, and EBP > 100, is used only for ported enclosures. EBP = FS/QES.

Quick Facts:
RMS Power: 300 Watts
MAX Power: 600 Watts
Coil Configuration: Dual 4 Ohm
Use Cases: Sealed & Ported Enclosures

Our 1st prototype utilized a 50.8 mm voice coil & 30 oz magnet resulting in a high QES rating of 1.21 and low EBP of 39.23. The 2nd prototype utilized a 44.7 mm voice coil & 30 oz magnet resulting in a slightly lower QES rating of 0.976 and a slightly higher EBP of 48.64. After the 1st and 2nd prototypes, we determined a larger motor assembly was needed to provide a more controlled electrical system (lower QES). This led us to invest in a custom-tooled basket (used in the final prototype) to keep the mounting depth below 3.5”.

The 3rd and final prototype uses a 44.7 mm voice coil & 40 oz magnet resulting in a reduced QES rating of 0.668 and a balanced EBP of 71.06. In testing, we ran into mechanical noise due to the larger motor assembly and voice coil in a confined space. Therefore, we invested in a custom-tooled cone to maximize the excursion capability by creating an equal distance between the cone, spider, and bottom plate. The result is an 8” shallow-mount subwoofer that is extremely responsive in both sealed & ported enclosures.

Specs
General Specifications:
Product Type: Car Subwoofer
Subwoofer Size: 8"
Voice Coil Configuration: Dual 4 Ohm
RMS Power: 300 Watts
MAX Power: 600 Watts
Voice Coil Type: 1.75 Inch - 4 Layer High-Temperature Copper Voice Coil
Magnet Type: Y35
Bottom Plate Type: Low Carbon Iron
Surround Type: Dual White Stitched Competition Mega Foam Surround
Cone Type: Composite Paper with 3% Carbon Fiber Reinforcement
Tinsel Lead Type: Single Braided Flat Copper Tinsel Leads
Terminal Type: 12 Gauge Push Terminals
Basket Type: Stamped Steel
Spider Material: Poly-Cotton Blend
T/S Parameters:
Qes: 0.668
Qms: 6.083
Qts: 0.602
Fs: 47.47 Hz
Vas: 10.427 L
Mms: 77.535 g
Cms: 0.145 m/N
Re: 6.4 Ω
Bl: 14.880 Tm
Le: /
Sd: 227 cm²
Xmax - Single Way (mm): 8 mm
Xmax - Single Way (cm): 0.8 cm
Vd (Sd*Xmax): 181.6 cm²
SPL: 84.48 dB
Box Specs
Subwoofer Measurements:
Cutout diameter 7.51"
Overall diameter 8.77"
Mounting depth 3.26"
Box Specifications:
Displacement 0.02 ft3
Box Recommendations:
Sealed 0.35 ft3
Ported 0.875 ft3
Tuning Frequency 36 Hz
Port Area 14 in2

*Enclosure recommendations do not account for subwoofer, bracing, and port displacement.

Wiring Calc.
Subwoofer Quantity     
Voice Coil Impedance  

Customer Reviews

Based on 8 reviews
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J
Jerwaan

Great service....Thank you.

J
Jerwaan

Great Service....Thank you!

D
Dakota L. (Smyrna, TN)

HYDRO-8 // 300 Watt RMS 8 Inch Shallow Mount Subwoofer

J
Jason (Green Cove Springs, FL)
Awesome 8s

These are the first 8" subs I have ever used and they are absolutely amazing. Built custom sealed boxes to cuf and they hit harder than my pioneer 10s in my silverado. Best bang for your buck sub I've ever bought.

J
Jeremy C. (Nettleton, MS)

HYDRO-8 // 300 Watt RMS 8 Inch Shallow Mount Subwoofer