free shipping 12MB700 is a very high sensitivity (101.5 dB 1W/1m) midbass driver with high power handling capabilities. The 12MB700 can be used as either a bass/mid driver in compact 2-way reflex enclosures or as a direct radiating or horn loaded, dedicated midrange driver, in multi-way touring and fixed installation concert and arena systems. Its curvilinear paper cone made from a special high strength wood pulp, has been designed to achieve the best possible linearity within its intended frequency range and to control bell-mode resonances around the cone circumference. The cone is carried by a multiroll suspension formed of a linen-like material, which is more resistant to aging and fatigue than traditional materials. The 75 mm diameter state-of-the-art voice coil is similiar to those fitted to our top-of-the-range 18" and 15" models but it is wound with aluminum wire. It employs our Interleaved Sandwich Voice coil (ISV) technology in which a high strength fiberglas former carries windings on both the outer and inner surfaces to achieve a mass balanced coil. This results in an extremely linear motor assembly with a reduced tendency for eccentric behavior when driven hard. The excellent performance capabilities of this loudspeaker are further enhanced by the Double Demodulating Rings (DDR) designed to dramatically reduce the intermodulation and harmonic distortion and improve transient response. The magnetic structure has been optimized using FEA CAD resource, maximizing the flux density in the voice coil gap. Voice coil cooling has been achieved by incorporating airways between the chassis back plate and the top plate of the magnet, allowing heated air from the voice coil and gap to be channeled away and dissipated by the chassis basket. Due to the increasing use of high power audio systems at outdoor events or in marine environments, the ability to perform properly under inclement weather conditions is a key feature in Eighteen Sound philosophy. Hence, an exclusive treatment has been applied to the cone giving it water repellent properties. In addition, another special treatment has been applied to the top and back plates making the transducer far more resistant to the corrosive effects of salts and oxidization.

Features

101,5 dB SPL 1W / 1m sensitivity

75 mm (3 in) Interleaved Sandwich Voice coil (ISV)

450 W AES power handling

Double Demodulating Rings (DDR) for lower distortion

Improved heat dissipation via unique basket design

Weather protected cone and plates for outdoor usage

Ideal for compact two way and multiway systems

Technologies

DDR - Double Demodulating Rings

ISV - Interleaved Sandwich Voice Coil Nominal Diameter

300 mm ( in)

Nominal Impedance

8 Ω

Minimum Impedance

5.7 Ω

Nominal Power Handling1

450 W

Continuous Power Handling2

600 W

Sensitivity3

101.5 dB

Frequency Range

60 - 5000 Hz

Voice Coil Diameter

75 mm (3.0 in)

Winding Material

aluminum

2 hours test made with continuous pink noise signal within the range Fs-10Fs. Power calculated on rated minimum impedance. Loudspeaker in free air.

Power on Continuous Program is defined as 3 dB greater than the Nominal rating.

Applied RMS Voltage is set to 2.83 V for 8 ohms Nominal Impedance. 12MB700

LF drivers - 12.0 Inches

8Ω

101,5 dB SPL 1W / 1m sensitivity

75 mm (3 in) Interleaved Sandwich Voice coil (ISV) 450 W AES power handling

Double Demodulating Rings (DDR) for lower distortion Improved heat dissipation via unique basket design Weather protected cone and plates for outdoor usage Ideal for compact two way and multiway systems

The 12MB700 is a very high sensitivity (101.5 dB 1W/1m) midbass driver with high power handling capabilities. The 12MB700 can be used as either a bass/mid driver in compact 2-way reflex enclosures or as a direct radiating or horn loaded, dedicated midrange driver, in multi-way touring and fixed installation concert and arena systems. Its curvilinear paper cone made from a special high strength wood pulp, has been designed to achieve the best possible linearity within its intended frequency range and to control bell-mode resonances around the cone circumference. The cone is carried by a multiroll suspension formed of a linen-like material, which is more resistant to aging and fatigue than traditional materials. The 75 mm diameter state-of-the-art voice coil is similiar to those fitted to our top-of-the-range 18" and 15" models but it is wound with aluminum wire. It employs our Interleaved Sandwich Voice coil (ISV) technology in which a high strength fiberglas former carries windings on both the outer and inner surfaces to achieve a mass balanced coil. This results in an extremely linear motor assembly with a reduced tendency for eccentric behavior when driven hard. The excellent performance capabilities of this loudspeaker are further enhanced by the Double Demodulating Rings (DDR) designed to dramatically reduce the intermodulation and harmonic distortion and improve transient response. The magnetic structure has been optimized using FEA CAD resource, maximizing the flux density in the voice coil gap. Voice coil cooling has been achieved by incorporating airways between the chassis back plate and the top plate of the magnet, allowing heated air from the voice coil and gap to be channeled away and dissipated by the chassis basket. Due to the increasing use of high power audio systems at outdoor events or in marine environments, the ability to perform properly under inclement weather conditions is a key feature in Eighteen Sound philosophy. Hence, an exclusive treatment has been applied to the cone giving it water repellent properties. In addition, another special treatment has been applied to the top and back plates making the transducer far more resistant to the corrosive effects of salts and oxidization.

Eighteen Sound

12MB700

LF drivers - 12.0 Inches

8Ω

SPECIFICATIONS

Nominal Diameter

Nominal Impedance Minimum Impedance Nominal Power Handling1 Continuous Power Handling2 Sensitivity3

Frequency Range Voice Coil Diameter Winding Material

PARAMETERS4

49 Hz Re 5.0Ω Qes 0.2

Qms 4.7 Qts 0.19

DESIGN

Surround Shape

Cone Shape

Magnet Material

Woofer Cone Treatment Recommended Enclos ure Recommended Tuning

300 mm ( in) 8 Ω 5.7 Ω

450 W

600 W 101.5 dB 60 - 5000 Hz 75 mm (3.0 in) aluminum

M-roll Curvilinear Ferrite Weather protected 50.0 dm3 (1.77 ft3) 55 Hz

Res onance Frequency

Overall Diameter

Bolt Circle Diameter

Baffle Cutout Diameter

Depth

Flange and Gas ket Thicknes s Net Weight

S hipping Weight

Shipping Box

315 mm (12.4 in) 296 mm (11.65 in) 282.0 mm (11.1 in) 147 mm (5.79 in) 16 mm (0.63 in) 8.0 kg (17.64 lb) 9.0 kg ( lb)

MOUNTING AND SHIPPING INFO

Vas Sd Xmax Mms Bl

Le EBP

101.0 dm3 (3.57 ft3) 531.0 cm2 (82.31 in2) 4.5 mm 41.0 g 17.8 Txm 0.9 mH 245 Hz

332 x 332 x 184 mm (13.07x13.07x7.24 in)

1. 2 hours test made with continuous pink noise signal within the range Fs-10Fs. Power calculated on rated minimum impedance. Loudspeaker in free air.

2. Power on Continuous Program is defined as 3 dB greater than the Nominal rating.

3. Applied RMS Voltage is set to 2.83 V for 8 ohms Nominal Impedance.

4. Thiele-Small parameters are measured after a high level 20 Hz sine wave preconditioning test.

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