B-stock due to damaged or incomplete original packaging, or minor cosmetic defects. The same warranty conditions apply to B-stock as to our A-stock. The product is technically sound.

The Mille Pro MPS 250 S4/S2, manufactured by renowned audio company Hertz, is a 10-inch flat subwoofer known for its impressive performance despite its slim design. Optimized for use in ultra-compact, sealed enclosures, this subwoofer delivers exceptional performance even in limited space. Its unique design allows it to achieve high performance even in challenging installation environments, such as under the rear seats of pickup trucks. With a cone excursion capacity 20% higher than conventional designs, this subwoofer offers a depth-to-power ratio that is second to none.

FEATURES

• Ultra-flat mounting (83.6 mm/ 3.35 inches)
• 500 W continuous power
• Unprecedented mechanical deflection, +20% compared to conventional designs
• Robust, screwless mesh screen included in the scope of delivery
• Optimized for an extremely compact, sealed enclosure
• Design made of die-cast aluminum
• Non-ventilated rear design for installation with reduced case depth
• A 38 mm (1.5 inch) six-layer copper voice coil ensures high heat capacity.
• Air Intercooling Revolution (AIR) to avoid air compression
• Solid Horizontal 8-AWG Connectors
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MPS 250 S4

The flat subwoofer MPS 250 S4 was designed to deliver exceptional performance even when very little space is available for installing the subwoofer enclosure.

The MPS 250 S2 is optimized for use in ultra-compact, sealed enclosures starting at 14 liters (0.49 cf). A typical example is a subwoofer enclosure under the rear seat of pickup trucks, where space and height are limited.

The MPS 250 subwoofer has an unprecedented depth/power ratio thanks to its impressive diaphragm excursion capacity, which is 20% higher than that of a conventional design.

This exceptional result was achieved thanks to the ingenious design of the centering system, featuring a special support structure for the spider and coil. This solution made it possible to move the magnet inwards, reducing the depth while simultaneously maximizing the linear excursion of the diaphragm.

SPECIFICATIONS

• Size 250mm 10 inches
• Load capacity - Continuous 500W
• Power handling - 1000W peak
• Impedance 2 ohms
• Depth 82.6mm
• Voice coil type single
• No subwoofer filter component
• Voice coil Ø 38 (1.5)
• Frequency response 25 - 400Hz
• Magnet size D x D x H 134 x 55 x 36mm
• Weight of one component: 5.11 kg
• High-density magnetic flux ferrite
• Cone Polypropylene
• Xmech mm 20

Electro-acoustic specifications

• D 216.6mm
• Xmax 16.8mm
• Re 3.3 ohms
• Fs 29Hz
• Le 3.65mH
• Mms 234g
• Cms 0.11mm/N
• UP TO 17.3T*m
• Qts 0.48
• NS 0.52
• Qms 5.6
• Spl 83.5dB

Physical specifications

• A 274.5 mm
• B 231.6 mm
• C 103.2 mm
• D 82.6 mm
• E 244.6 mm
• F 38.9 mm

Frequency response

Mass

• Vb 14.2l net
• FC 49Hz
• Qtc 0.81
• W 386mm
• H 352 mm
• D 160 mm
• Mounting hole - M 232mm
• Wood thickness 16mm

PANEL CUTTING LIST - CLOSED

• One mm 386 x 352 Quantity 2
• B mm 386 x 128 Quantity 2
• C mm 320 x 128 Quantity 2

REFLEX BOX

If a high sound pressure level is desired and space is not a problem, reflex designs are the best choice, as they concentrate most of the energy in the 40 Hz to 80 Hz range.

BOX TECHNICAL DATA - REFLEX BOX

• Vb19l
• Fb 35.5Hz
• W 713 mm
• H 372 mm
• D 130 mm
• Z 146 mm
• P 98 mm
• S 52.3 mm
• Mounting hole - M 232mm
• Wood thickness 16mm

Panel cutting list - reflex box

• One mm 713 x 372 Quantity 2
• B mm 713 x 98 Quantity 2
• C mm 340 x 98 Quantity 1
• D mm 288 x 98 Quantity 1
• E mm 495 x 98 Quantity 1

MPS 250 S2

The flat subwoofer MPS 250 S2 was designed to deliver exceptional performance even when very little space is available for installing the subwoofer enclosure.

The MPS 250 S2 is optimized for use in ultra-compact, sealed enclosures starting at 14 liters (0.49 cf). A typical example is a subwoofer enclosure under the rear seat of pickup trucks, where space and height are limited.

The MPS 250 subwoofer has an unprecedented depth/power ratio thanks to its impressive diaphragm excursion capacity, which is 20% higher than that of a conventional design.

This exceptional result was achieved thanks to the ingenious design of the centering system, featuring a special support structure for the spider and coil. This solution made it possible to move the magnet inwards, reducing the depth while simultaneously maximizing the linear excursion of the diaphragm.

SPECIFICATIONS

Electro-acoustic specifications

• D mm 216.6
• Xmax mm 16.8
• Re Ohm 2.2
• Fs Hz 28
• LE mH 2.67
• Mms g 250
• Cms mm/N 0.13
• BIS T*m 14.7
• Qts 0.41
• NS 0.45
• Qms 5.3
• Spl dB 82.5

Frequency response