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Diamond Audio H122

HEX Series 12" Dual 2 Ohm Subwoofer 600W RMS

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• HEX Series 12" Dual 2 Ohm Subwoofer
• 600W RMS
• Improved High-Density Cast Aluminum Alloy Deep Drawn Basket
• Ridged 2-Part Treated Paper/Fiberglass Laminated Cone.
• FEA Optimized High Power Motor with Vented Pole Piece
• Unique High-Strength 3 Point Triple Bond Neck Joint Technique

Learn more about the h122

We apologize

This item has been discontinued


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Description


Product Details:

  • HEX Series 12" Dual 2 Ohm Subwoofer 600W RMS
  • Power Handling:
    • RMS: 600 Watts
    • Peak: 1200 Watts
  • Improved High-Density Cast Aluminum Alloy Deep Drawn Basket
  • Ridged 2-Part Treated Paper/Fiberglass Laminated Cone.
  • FEA Optimized High Power Motor with Vented Pole Piece
  • Unique High-Strength 3 Point Triple Bond Neck Joint Technique
  • Copper Anodized Aluminum Elevated Radiating Heat Sink
  • Impedance Selectable High Power Terminal
  • 3” High Temp Copper VC on Treated Black High-Strength Aluminum Former
  • Klippel DA Optimized Motor and Suspension Symmetry
  • SPL @ 2.83v: 85.5dB
  • Re: 3.9 Ohm
  • Qms: 5.24
  • Qes: 0.56
  • Qts: 0.51
  • Fs: 32.4Hz
  • Vas: 12.6Hz
  • Xmax: 17.8mm
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Dimensions:

  • Total Diameter: 12.5"
  • Mounting Diameter: 10.9"
  • Hole Diameter: 11.7"
  • Mounting Depth: 7.4"
  • Magnet Diameter: 7.1"

Subwoofer Wiring Guide


Wiring Guide to Wire 1 Diamond Audio H122 Subwoofer

Mono Amp

2 Channel Amp - Bridged

Wiring Guide to Wire 2 Diamond Audio H122 Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

Wiring Guide to Wire 3 Diamond Audio H122 Subwoofers

Mono Amp

4 Channel Amp

Wiring Guide to Wire 4 Diamond Audio H122 Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp


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Specifications & Details


Subwoofer Specifications
Series
HEX Series
Subwoofer Size
12"
Peak Power Handling
1200 watts
RMS Power Handling
600 watts
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
Voice Coil Diameter
3"
Sensitivity
85.5 dB
Xmax (millimeters)
17.8 mm
Subwoofer Design
Round / Circle
Main Cone Color
Black
Woofer Composition
Ridged 2-Part Treated Paper/Fiberglass Laminated
Subwoofer Grille
No
Re-Cone Kit Available
No
Recommended Enclosure Specifications
Recommended Enclosure Type
Ported / Vented
Sealed
Top-Mount Depth (Mounting Depth)
10.9"
Cutout Diameter
11.7"
Shallow Mount Installation
No
T/S Parameters (Electromechanical)
Free-Air Resonance (Fs)
32.4 Hz
Equivalent Compliance (Vas)
12.6 liters
Total Speaker Q Value (Qts)
0.51
Electrical Q Value (Qes)
0.56
Electrical Resistance of Voice Coil (Re)
3.9 ohm
Mechanical Q Value (Qms)
5.24
What is in the box?
WITB: Subwoofers
Subwoofer
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

H122

Weight:

34.00lbs

Internal SKU:

h122

Internal Product ID:

174495

Customer Ratings & Reviews


Diamond Audio H122 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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24 found this helpful


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.