Altec lansing 399-8A 16A User Manual

399-8B/16B

P ROFESSIONAl

1.4” Exit High Frequency Compression Driver

MR II 564B

Medium Throw 60º x 40º Mantaray High Frequency Horn

1.4” Throat

MR II 594B

Medium Throw 90º x 40º Mantaray High Frequency Horn

FEATURES - THE ALTEC LANSING DIFFERENCE

• Superior Acoustic Output Level

• High Performance 40W AES / 160W Peak Power Handling

• Smooth and Transparent

399-8B/16B GENERAL PRODUCT DESCRIPTION

Altec Lansing’s 399-8B and 399-16B compact, high frequency, compression drivers have been designed for use in high level sound reinforcement systems where both wide bandwidth and substantial acoustic output level are essential. When used with Altec Lansing Mantaray can be directed to cover an audience accurately and completely. Their wide range response, when complemented by Altec Lansing low frequency loudspeaker systems, will provide smooth reproduction of speech and music for installations in auditoriums, churches, stadiums, and arenas.

The robust Pascalite diaphragm extends the driver’s power handling capability, while maintaining superior high frequency bandwidth. The compact magnetic motor-structure, utilizing a 6.7 lbs. (3.0 kg) ferrite magnet, provides a 2.05 T gap flux density. An exclusive Tangerine radial phasing-plug assures a smooth upper range response.

The excellent performance characteristics of these drivers make them the high frequency component of choice for all large sound systems when premium dynamic reproduction is required.

MR II 564B/594B GENERAL PRODUCT DESCRIPTION

Altec Lansing's MR II 564B and MR II 594B MantarayTMconstant-directivity horns feature efficient mid and high frequency response with proper loading down to 500 Hz, plus excellent directivity control over their respective 60°Horizontal x 40°Vertical and 90°Horizontal x 40°Vertical coverage patterns.

The geometry of the MR II 564B and MR II 594B reduces the problem of high frequency beaming and maintains uniform dispersion at all frequencies within the rated frequency range. Therefore, the same quality sound will be heard by listeners sitting off-axis and on-axis to the MANTARAY

Altec Lansing MANTARAY resistant fiberglass. This construction technique results in a horn design that is surprisingly lightweight, yet extremely rugged and non-resonant.

1.4” Throat

high frequency horns, the energy produced by these drivers

horn.

horns are constructed of heavy-duty, weather

1000 W. Wilshire Blvd., Suite 362 • Oklahoma City, Oklahoma 73116 • Phone: 1-405-848-3108 • Fax: 1-405-848-3217 • www.altecpro.com

FREQUENCY RESPONSE

1, 2

399-8B/16B with MR II 564B: 500 Hz – 16 kHz 399-8B/16B with MR II 594B: 500 Hz – 16 kHz (flat 500 Hz – 6 kHz, with 6 dB/octave roll-off to 16 kHz)

USABLE LOW FREQUENCY LIMIT (-10 dB)

1, 2

500 Hz

USABLE HIGH FREQUENCY LIMIT (-10 dB)

1, 2

16 kHz

SENSITIVITY

399-8B/16B with MR II 564B: 112 dB SPL 399-8B/16B with MR II 594B: 110 dB SPL

POWER HANDLING

> 500 Hz: 40 W continuous; 160 W peak > 1 kHz: 80 W continuous; 320 W peak

PEAK OUTPUT (1 m)

399-8B/16B with MR II 564B: 135 dB SPL 399-8B/16B with MR II 594B: 133 dB SPL

COVERAGE ANGLES

MR II 564B: 60º (horizontal) x 40º (vertical) MR II 594B: 90º (horizontal) x 40º (vertical)

DIRECTIVITY FACTOR, Q

MR II 564B: 23.0 MR II 594B: 12.9

DIRECTIVITY INDEX, DI

MR II 564B: 13.6 dB MR II 594B: 11.1 dB

IMPEDANCE

Nominal: 8.0 Ohms or 16.0 Ohms Minimum:

HARMONIC DISTORTION

8.0 Ohms or 16.0 Ohms between 4 kHz and 5 kHz

THD: 1.47%

INPUT CONNECTIONS

1 x 2 position barrier strip with 0.250 in. blade type terminals

FINISH

Dark gray enamel

REPLACEMENT HF DIAPHRAGM ASSEMBLY

25884: 8 Ohms 25885: 16 Ohms

MOUNTING DATA (DRIVERS)

Three 3/8-24 studs on a 3.25 in. diameter bolt circle (Altec Lansing Standard) Four 3/8-24 studs on a 4.75 in. diameter bolt circle

DIMENSIONS

399-8B/16B Diameter: 7.7 in. (196 mm)

Depth: 3.88 in. (99 mm)

MR II 564B Height: 12.75 in. (324 mm)

Width: 12.75 in. (324 mm) Depth: 12.50 in. (318 mm)

MR II 594B Height: 14.13 in. (359 mm)

Width: 24.00 in. (610 mm) Depth: 12.00 in. (305 mm)

NET WEIGHT

399-8B/16B: 20.6 lbs. (9.3 kg) MR II 564B: 5 lbs. (2.3 kg) MR II 594B: 5 lbs. (2.3 kg)

SHIPPING WEIGHT

399-8B/16B: 22 lbs. (10.0 kg) MR II 564B: 7 lbs. (3.2 kg) MR II 594B: 7 lbs. (3.2 kg)

ARCHITECT’S AND ENGINEER’S SPECIFICATIONS

The motors shall be large format high frequency compression drivers. These drivers shall have an operating bandwidth of 500 Hz – 16 kHz. The minimum power handling capability of the drivers shall be 40 W AES (160 W peak). One driver shall have a minimum impedance of 8 ohms (between 4 kHz and 5 kHz), and the other driver shall have a minimum impedance of 16 ohms (between 4 kHz and 5 kHz). The voice-coil for the drivers shall be an edge-wound, aluminum ribbon, which is 2.83 inches (72 mm) in diameter. These drivers shall have a diaphragm that features an all-metal, Pascalite dome and tangential compliance. The magnetic gap of these drivers shall have a flux density of 2.05 T, resulting from a 6.7 lbs. (3.0 kg) ferrite magnet. A Tangerine phasing-plug with thirteen radial acoustic slots shall provide the proper phase relationship between sound emanating from the center and edges of the diaphragm’s dome on these drivers. The entire diaphragm and voice-coil assembly for these drivers shall be field replaceable without requiring special tools, because adjustable dowel pins shall allow each voice coil to be precisely centered in the magnetic gap. The driver shall be 7.7 inches (196 mm) in diameter by 3.88 inches (99 mm) deep, excluding the

FREQUENCY RESPONSE AND IMPEDANCE MAGNITUDE OF 399-8B ON MR II 594B

one inch (25.4 mm) depth of the mounting studs. The driver shall weigh 20.6 pounds (9.3 kg).The high frequency compression drivers shall be the Altec Lansing model 399-8B and the Altec Lansing model 399-16B.

The projectors shall be constant-directivity mid and high frequency horns. These horns shall have an operating bandwidth of 500 Hz – 20 kHz. One horn shall have a mean horizontal dispersion angle of 60° and a mean vertical dispersion angle of 40°. The other horn shall have a mean horizontal dispersion angle of 90° and a mean vertical dispersion angle of 40°. When the 399-B series drivers are coupled to the 90° x 40° horn, this combination shall have a sensitivity of at least 110 dB, when measured on-axis, at a distance of one meter, with a one Watt input. When the 399-B series drivers are coupled to the 60° x 40° horn, this combination shall have a sensitivity of at least 112 dB, when measured on-axis, at a distance of one meter, with a one Watt input. The constant-directivity mid and high frequency horns shall be the Altec Lansing model MR II 564B and the Altec Lansing model MR II 594B.

As we are continually striving to improve Altec Lansing products, specifications are subject to change without notice.

Please visit www.altecpro.com for the latest information on Altec Lansing Professional products.

SPECIFICATION NOTES

1 The frequency response of the loudspeaker is measured at a distance of no less than 3 meters to obtain full range data. The level is then corrected to be equivalent to a 2.83 V 1 m measurement. 2 The limits of the frequency response are referenced to -10 dB of the loudspeaker’s rated sensitivity. 3 The sensitivity of the loudspeaker is the log based average SPL taken over the intended bandwidth of operation for the loudspeaker with a 2.83 V swept sine stimulus. The data is measured and level corrected in a manner consistent with note 1. 4 The power handling capacity of the loudspeaker is tested using a full range form of AES Standard 2-1984. The test stimulus is band limited (500 Hz – 16 kHz) pink noise with a 6 dB crest factor. The applied RMS voltage is determined using the minimum impedance of the loudspeaker. The amplifier used to drive the loudspeaker has a minimum operating headroom of 6 dB referenced to the RMS voltage. 5 The peak output level of the loudspeaker is calculated based on the sensitivity and the peak power handling capabilities of the loudspeaker. 6 The coverage angles for the loudspeaker are taken as the -6 dB points of the directivity response and averaged from 500 Hz – 16 kHz. 7 The minimum impedance of the loudspeaker is taken over its intended band of operation. 8 The distortion measurements of the loudspeaker are performed at a distance of 1 m with RMS input voltages corresponding to 10% of rated power handling calculated using minimum loudspeaker impedance. The distortion percentages are log based averages from 500 Hz – 10 kHz.

VISIT WWW.ALTECPRO.COM FOR

• Authorized EASE data on all Altec Lansing Professional loudspeakers

• Specification sheets in .pdf format. Download page 1 of the specification sheet for you submittals.

• One paragraph A&E Specifications in .doc format

P ROFESSIONAl

1000 W. Wilshire Blvd., Suite 362 Oklahoma City, Oklahoma 73116

Phone: 1-405-848-3108 • Fax: 1-405-848-3217

Web: www.altecpro.com • Email: proinfo@alteclansing.com

AW1072 REV02