Soundqubed HDS2.3 Series 8" Subwoofer 2.5" DVC 700 Watts RMS D2/D4
Key features
- Subwoofer size: 8.0 inches
- RMS power per subwoofer: 700 W
- Voice-coil options: D2, D4
- Mounting depth: 5.75 in / 146 mm
- Mounting cutout diameter: 7.28 in / 185 mm
- Linear excursion (Xmax): ±13 mm
Soundqubed HDS2.3 Series 8" Subwoofer 2.5" DVC 700 Watts RMS D2/D4 - Dual 2 Ohm is backordered and will ship as soon as it is back in stock.
Soundqubed HDS2.3 Series 8" Subwoofer 2.5" DVC 700 Watts RMS D2/D4 - Dual 2 Ohm is backordered and will ship as soon as it is back in stock.
Description
Description
Product Overview
The SoundQubed HDS2.3-8 is an 8-inch subwoofer designed to deliver substantial bass from a compact driver. It handles 700W RMS and comes in dual 2-ohm or dual 4-ohm versions, giving you different final load options for your amplifier.
Key Features & Benefits
- 700W RMS power handling: Pair it with a suitable mono amplifier for a compact daily-driver or SQL-focused system.
- 2.5-inch dual voice coil: The 36 mm coil length is part of the driver’s design for sustained power handling.
- 100 oz magnet: A substantial motor assembly supports the subwoofer’s high-power design.
- 13 mm Xmax: Linear excursion is specified at ±13 mm, with mechanical excursion at ±23 mm.
- D2 and D4 options: Choose the coil version that matches the final impedance your amplifier supports.
- Compact enclosure options: Sealed and ported volume ranges support different installation and listening goals.
Technical Specifications
| Parameter | HDS2.3-8D2 | HDS2.3-8D4 |
|---|---|---|
| Woofer Size | 8" | 8" |
| RMS Power | 700W | 700W |
| Peak Power | 1,400W | 1,400W |
| Magnet Weight | 100 oz | 100 oz |
| Coil Diameter | 2.5 in | 2.5 in |
| Coil Length | 36 mm | 36 mm |
| Fs | 40.1 Hz | 41.6 Hz |
| Impedance | 2+2 Ohm | 4+4 Ohm |
| QMS | 6.13 | 5.48 |
| QES | 0.69 | 0.75 |
| QTS | 0.62 | 0.66 |
| VAS | 5.1 L | 5.1 L |
| Le | 2.20 mH | 2.42 mH |
| η₀ (No) | 0.05% | 0.05% |
| CMS | 0.10 mm/N | 0.10 mm/N |
| Sensitivity (1W/1m) | 81.3 dB | 80.6 dB |
| BL | 15.1 N/A | 19.2 N/A |
| Xmax (±) | 13 mm | 13 mm |
| Xmech (±) | 23 mm | 23 mm |
| SD | 196 cm² | 196 cm² |
| Model | A | B | C | D |
|---|---|---|---|---|
| HDS2.3-8D2 | 220 mm / 8.66" | 185 mm / 7.28" | 162 mm / 6.38" | 146 mm / 5.75" |
| HDS2.3-8D4 | 220 mm / 8.66" | 185 mm / 7.28" | 162 mm / 6.38" | 146 mm / 5.75" |
| Enclosure Type | HDS2.3-8D2 | HDS2.3-8D4 |
|---|---|---|
| Sealed Enclosure | 0.35–0.75 ft³ | 0.35–0.75 ft³ |
| Ported Enclosure | 0.75–1.25 ft³ | 0.75–1.25 ft³ |
Why Choose This Product?
The HDS2.3-8 combines an 8-inch frame with a 700W RMS rating and a 2.5-inch dual voice coil. Its compact format may suit custom builds where installation space is limited, including under-seat boxes and motorcycle audio setups.
Choose a sealed enclosure for the specified 0.35–0.75 ft³ range, or a ported enclosure in the 0.75–1.25 ft³ range. The ported recommendation specifies tuning from 33–42 Hz.
Installation & Compatibility Notes
The D2 version can be wired to 1Ω in parallel or 4Ω in series. The D4 version can be wired to 2Ω in parallel or 8Ω in series. Select a mono amplifier rated for 300–700W RMS at your chosen final impedance, and confirm that its stable load rating supports that impedance.
Check the listed mounting dimensions and enclosure volume against your planned installation. The supplied dimensions are labeled A through D; confirm the relevant measurements for your enclosure before cutting or mounting.
Frequently Asked Questions
What amplifier power is recommended for the HDS2.3-8?
Target a mono amplifier delivering 300–700W RMS at the final impedance you plan to use.
How do the D2 and D4 versions differ?
Both versions have the same listed power handling and physical dimensions. The D2 offers 1Ω or 4Ω wiring options, while the D4 offers 2Ω or 8Ω options.
What enclosure volume does this 8-inch subwoofer require?
The listed sealed volume is 0.35–0.75 ft³. The listed ported volume is 0.75–1.25 ft³, with a recommended tuning range of 33–42 Hz.
What mounting dimensions should I check?
For both versions, the listed A, B, C, and D measurements are 220 mm / 8.66", 185 mm / 7.28", 162 mm / 6.38", and 146 mm / 5.75", respectively.
Is the HDS2.3-8 intended for daily listening?
The product information describes it as a daily SQL driver and also notes use in moderate SQL builds and light competition applications.
Explore More
Shop SoundQubed products at 12 Volt Outlet. Want to learn more about SoundQubed? Explore our SoundQubed brand profile.
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Suggestions use 75–125% of the subwoofer’s RMS rating at the wiring load shown. Check wiring, enclosure needs, electrical capacity and installation space. Set gain and filters correctly to avoid overpowering the subwoofer. Buying more than one subwoofer changes the match.
