Hertz
Hertz Uno S 300 S4Car Audio Subwoofer
The 30 cm (12’) S 300 S4 car audio subwoofer , designed to obtain powerful deep bass in any installation , is the last addition to the Uno product range. Thanks to the efficiency of 89.
Highlights
- Very high efficiency, superior power handling;
- V-cone® with pressed paper membrane for maximum lightness;
- High excursion foam surround combining high sensitivity and deep bass response;
- Pure copper voice coil, wound on aluminium former, for exceptional thermal and mechanical capacity;
Key specs
Full specs- Size mm (in.)
- 300 (12)
- Power Handling - Continuous W
- 250
- Power Handling - Peak W
- 1000
- Impedance Ohm
- 4
- No Filter Component
- Uno subwoofer
- Voice Coil Ø
- 38 (1.5)
- Magnet size D x d x h mm (in.)
- 134 x 45 x 34 (5.28 x 1.77 x 1.34)
- Weight of one component kg (lb.)
- 3 (6.61)
Key specs
Full specs- Size mm (in.)
- 300 (12)
- Power Handling - Continuous W
- 250
- Power Handling - Peak W
- 1000
- Impedance Ohm
- 4
Highlights
Overview- Very high efficiency, superior power handling;
- V-cone® with pressed paper membrane for maximum lightness;
- High excursion foam surround combining high sensitivity and deep bass response;
Overview
The 30 cm (12’) S 300 S4 car audio subwoofer, designed to obtain powerful deep bass in any installation, is the last addition to the Uno product range.
Thanks to the efficiency of 89.5 dB, achieved using lightweight materials such as paper for the cone and high density foam for the suspension, the component provides the ability to easily reach high sound pressures in the car compartment.
The exclusive patented V-cone® system ensures maximum stiffness through wide excursions, thus obtaining low undistorted frequencies at high volume.
The S 300 S4 is optimized for both reflex and sealed enclosures. The resonance frequency is as low as 33 Hz, a particularly low value considering the speaker’s high efficiency. This figure proves the degree of commitment of the Hertz R&D team to the project, aiming at maximizing the output quality and level. A pre-assembled gasket in ABS refines the product’s cosmetics ensuring an appealing look once installed.
Thanks to the efficiency of 89.5 dB, achieved using lightweight materials such as paper for the cone and high density foam for the suspension, the component provides the ability to easily reach high sound pressures in the car compartment.
The exclusive patented V-cone® system ensures maximum stiffness through wide excursions, thus obtaining low undistorted frequencies at high volume.
The S 300 S4 is optimized for both reflex and sealed enclosures. The resonance frequency is as low as 33 Hz, a particularly low value considering the speaker’s high efficiency. This figure proves the degree of commitment of the Hertz R&D team to the project, aiming at maximizing the output quality and level. A pre-assembled gasket in ABS refines the product’s cosmetics ensuring an appealing look once installed.
Highlights
Key features
- Very high efficiency, superior power handling;
- V-cone® with pressed paper membrane for maximum lightness;
- High excursion foam surround combining high sensitivity and deep bass response;
- Pure copper voice coil, wound on aluminium former, for exceptional thermal and mechanical capacity;
- FEM refined motor structure employing low-carbon content steel and high-density flux ferrite magnet;
- Designed to be used in small sealed or reflex box;
- ABS gasket provided for aesthetically pleasant installation.
- V-CONE®
Technologies
V-CONE®
The exponential profile gets very close to the perfect one, providing exceptional dispersion.
Specs
Technical Specs
11
| Size mm (in.) | 300 (12) |
| Power Handling - Continuous W | 250 |
| Power Handling - Peak W | 1000 |
| Impedance Ohm | 4 |
| No Filter Component | Uno subwoofer |
| Voice Coil Ø | 38 (1.5) |
| Magnet size D x d x h mm (in.) | 134 x 45 x 34 (5.28 x 1.77 x 1.34) |
| Weight of one component kg (lb.) | 3 (6.61) |
| Magnet | High density flux ferrite |
| Cone | Painted Pressed Paper Pulp |
| Xmech mm (in.) | ±15,1 (0.59) |
Electro-acoustic Specs
12
| D mm | 258 |
| Xmax mm | 9,1 |
| Re Ohm | 3,6 |
| Fs Hz | 33 |
| Vas I | 82,2 |
| Mms g | 112 |
| Cms mm/N | 0,21 |
| BL T*m | 11,3 |
| Qts | 0,6 |
| Qes | 0,65 |
| Qms | 7,8 |
| Spl dB | 89,5 |
Physical Specs
4
| A | 307 mm | 12.09 in. |
| B | 280 mm | 11.02 in. |
| C | 128 mm | 5.04 in. |
| D | 121 mm | 4.76 in. |
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Enclosures / Box Advisor
SEALED BOX
- Vb l(cu.ft.)
- 42 (1.48)
- Fb Hz
- 56
- Qtc
- 0,89
- W mm(in.)
- 460 (18.11)
- H mm(in.)
- 370 (14.57)
- D mm(in.)
- 320 (12.60)
- Mounting Hole - M
- 279 (10.98)
- Wood Thickness
- 12 (0.47)
- A mm(in.)
- 460 x 370 (18.11 x 14.57) Qty 2
- B mm(in.)
- 460 x 296 (18.11 x 11.65) Qty 2
- C mm(in.)
- 346 x 296 (13.62 x 11.6) Qty 2
Box Tech Data - Sealed Box
| Box Tech Data - Sealed Box | |
|---|---|
| Vb l(cu.ft.) | 42 (1.48) |
| Fb Hz | 56 |
| Qtc | 0,89 |
| W mm(in.) | 460 (18.11) |
| H mm(in.) | 370 (14.57) |
| D mm(in.) | 320 (12.60) |
| Mounting Hole - M | 279 (10.98) |
| Wood Thickness | 12 (0.47) |
Panels Cut List - Sealed Box
| Panels Cut List - Sealed Box | ||
|---|---|---|
| A mm(in.) | 460 x 370 (18.11 x 14.57) | Qty 2 |
| B mm(in.) | 460 x 296 (18.11 x 11.65) | Qty 2 |
| C mm(in.) | 346 x 296 (13.62 x 11.6) | Qty 2 |
REFLEX BOX
- Vb l(cu.ft.)
- 50 (1.77)
- Fb Hz
- 38
- Qtc
- -
- W mm(in.)
- 650 (25.59)
- H mm(in.)
- 338 (13.31)
- D mm(in.)
- 338 (13.31)
- Mounting Hole - M
- 279 (10.98)
- Wood Thickness
- 19 (0.75)
- A mm(in.)
- 650 x 338 (25.59 x 13.31) Qty 2
- B mm(in.)
- 650 x 300 (25.59 x 11.81) Qty 2
- C mm(in.)
- 300 x 300 (11.81 x 11.81) Qty 2
Box Tech Data - Reflex Box
| Box Tech Data - Reflex Box | |
|---|---|
| Vb l(cu.ft.) | 50 (1.77) |
| Fb Hz | 38 |
| Qtc | - |
| W mm(in.) | 650 (25.59) |
| H mm(in.) | 338 (13.31) |
| D mm(in.) | 338 (13.31) |
| Mounting Hole - M | 279 (10.98) |
| Wood Thickness | 19 (0.75) |
Panels Cut List - Reflex Box
| Panels Cut List - Reflex Box | ||
|---|---|---|
| A mm(in.) | 650 x 338 (25.59 x 13.31) | Qty 2 |
| B mm(in.) | 650 x 300 (25.59 x 11.81) | Qty 2 |
| C mm(in.) | 300 x 300 (11.81 x 11.81) | Qty 2 |
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