Eighteen Sound 12W700

€206.00

Key features

98 dB SPL 1W / 1m average sensitivity
75 mm (3 in) Interleaved Sandwich Voice coil (ISV)
450 W AES power handling
Excellent transient response
Weather protected cone and plates for outdoor usage
Improved heat dissipation via unique basket design
Ideal for compact two way, multiway systems and subwoofer applications

0221284210 8 Ohm

Description
The 12W700 meets the specific market requirement for a loudspeaker which combines the excellent linearity, good efficiency and high power handling of the 15W700 model but in a 12 inch (300mm) chassis for use in more compact systems. It is primarily intended for application in compact reflex and band-pass enclosures but can also be used for horn loaded configurations.
The ribbed curvilinear paper cone has been made from a special high strength woodpulp 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 an unusually deep profile, triple roll suspension made from a polycotton material which is more resistant to aging and fatigue than traditional cotton-based ones.
The 75 mm (3 inch) diameter voice coil employs the 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 magnetic structure has been optimized using FEACAD resource to maximize 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 audio systems at outdoor events, the ability to perform in adverse weather conditions or in high-humidity areas is an essential feature of the 12W700. This has been achieved using an exclusive cone and magnet plate treatment process which increases resistance to corrosion and renders the cone water repellent.

GENERAL SPECIFICATIONS
Nominal Diameter	300 mm (12 in)
Rated Impedance	8 Ohm
AES Power	450 W
Program Power (1)	700 W
Peak Power (2)	1500 W
Sensitivity (3)	98 dB
Frequency Range (4)	55 ÷ 4200 Hz
Power Compression @-10dB (5)	0,8 dB
Power Compression @-3dB	2,3 dB
Power Compression@Full Power	3,1 dB
Max Recomm. Frequency	1700 Hz
Recomm. Enclosure Volume	40 ÷ 90 lt. (1,41 ÷ 3,18 cuft)
Minimum Impedance	7 Ohm at 25°C
Max Peak To Peak Excursion	34 mm (1,34 in)
Voice Coil Diameter	75 mm (2,95 in)
Voice Coil Winding Material	aluminum
Suspension	Triple Roll, Polycotton
Cone	Ribbed Curvilinear, Paper

THIELE SMALL PARAMETERS (6)
Fs	58 Hz
Re	5,7 Ohm
Sd	0,0531 sq.mt. (82,31 sq.in.)
Qms	3,93
Qes	0,37
Qts	0,36
Vas	55 lt. (1,94 cuft)
Mms	51 gr. (0,11 lb)
BL	17,7 Tm
Linear Mathematical Xmax (7)	± 6,5 mm (± 0,26 in)
Le (1kHz)	1,48 mH
Ref. Efficiency 1W@1m (half space)	97,2 dB

MOUNTING INFORMATIONS
Overall diameter	315 mm (12,4 in)
N. of mounting holes	8
Mounting holes diameter	7,15 mm (0,28 in)
Bolt circle diameter	296 - 300 mm (11,65 - 11,8 in)
Front mount baffle cutout ø	282 mm (11,1 in)
Rear mount baffle cutout ø	282 mm (11,1 in)
Total depth	147,5 mm (5,80 in)
Flange and gasket thickness	16,5 mm (0,65 in)
Net weight	8,2 kg (18,1 lb)
Shipping weight	9 kg (19,87 lb)
CardBoard Packaging dimensions	332 x 332 x 184 mm (13,07 x 13,07 x 7,24 in)

FREQUENCY RESPONSE CURVE OF 12W700 MADE ON 50 LIT. ENCLOSURE TUNED 60HZ IN FREE FIELD (4PI) ENVIRONMENT. ENCLOSURE CLOSES THE REAR OF THE DRIVER. THE THIN LINE REPRESENTS 45 DEG. OFF AXIS FREQUENCY RESPONSE

FREE AIR IMPEDANCE MAGNITUDE CURVE