Atlas Sound GD87W Manual

Atlas Sound Højttaler GD87W

Læs gratis den danske manual til Atlas Sound GD87W (2 sider) i kategorien Højttaler. Denne vejledning er vurderet som hjælpsom af 27 personer og har en gennemsnitlig bedømmelse på 4.8 stjerner ud af 14 anmeldelser. Har du et spørgsmål om Atlas Sound GD87W, eller vil du spørge andre brugere om produktet?

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Side 1/2

Specifications subject to change without notice

2.65

One

1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A.

TELEPHONE: (800) 876-3333 / FAX (800) 765-3435 AtlasSound.com

8" PREASSEMBLED SPEAKER PACKAGE W/ BAFFLE GD87W

FEATURES

• Industry standard 8" (203mm) coaxial, 16 watt, loudspeaker with

high quality factory installed 8 watt line matching transformer and

white CRS baffle

• Offers proven performance with wide frequency response

• Post-mounted tweeter adds strength and a more attractive appearance

• Ideal for multi-purpose commercial, industrial, and institutionals use

• Individually packaged for stocking & ordering convenience

APPLICATIONS

Use Atlas Sound 8" (203mm) dia., multi-purpose, coaxial loudspeaker

Model GD87W for voice transmission, music and signal reproduction in

high-quality commercial, industrial and institutional applications.

GENERAL DESCRIPTION

The speaker used in the GD87W is the next generation of Atlas Sound

high performance cone loudspeakers, very similar to the preceding

C-Series speakers. The similarity in the sonic qualities ensures that

contractors and designers who have worked with the Atlas Sound C803A

Series in the past will know exactly what to expect when they use the

GD87W.

High-quality, 25W Model GD87W utilizes a post mounted tweeter which

adds strength to the assembly and provides an attractive appearance.

This coaxial loudspeaker features a 55Hz-15kHz ±5dB frequency

response and a broad, uniform dispersion pattern of 90° @ 2kHz. Such

provisions allow for highly intelligible sound reproduction and better

distribution for high-quality sound systems. The GD87W combines a

full-size 8" (203mm) dia. low-frequency reproducer and a 3" (76mm)

high-frequency reproducer. The two sections are coupled via a built-in

crossover network. The woofer has a 10 oz. (260g) ceramic magnet; the

tweeter has a 2.35oz. (67g) ceramic magnet.

The unit has an average sensitivity of 96dB (1W/1M). The loudspeaker is

matched with a high efficiency 8 watt 70.7V transformer with a maximum

insertion loss of 0.6dB. This premium transformer is constructed of audio

grade laminations and has a full range frequency response of +1dB from

50Hz-15KHz. The primary taps are 1, 2, 4, and 8 watts. The GD87W

includes a factory installed CRS baffle with concealed loudspeaker

mounting studs and includes screw mount hardware. The baffle finish is

white powder coat epoxy.

ARCHITECT & ENGINEER SPECIFICATIONS

Unit shall be Atlas Sound 8" diameter. loudspeaker/transformer/

bafflecombination Model GD87W The low-frequency reproducer cone

shall be a full 8" (203mm) in diameter and the high frequency reproducer

cone shall be 3" (76mm) in diameter. The woofer shall have a 10 oz.

(260g) ceramic magnet; the tweeter shall have a 2.35oz. (67g) ceramic

magnet. The two reproducer sections shall be coupled through a built-

in crossover network. The crossover frequency shall be at 2800Hz.

Frequency response range shall be 55Hz-15kHz ±5dB. Average

sensitivity shall be 96dB (1W/1M). Low frequency voice coil diameter

shall be 1" (25mm) and operate in a magnet field of at least 10,600

gauss. Transformer primary voltage shall be 70.7V with a frequency

response range of ±1dB-50Hz-15KHz and power taps at 1,2,4, and 8

watts. Insertion loss shall not exceed .6dB. Unit shall include factory

installed CRS baffle. Baffle shall included welded speaker mounting studs

and all necessary hardware to match the baffle to associated optional

hardware. Baffle overall diameter shall not exceed 12

1⁄4” (324mm) Baffle

shall be finished in white powder coat epoxy. The maximum depth of the

loudspeaker/transformer/baffle package shall not exceed 2.875" (73mm).

The GD87W baffle features standard mounting holes to accommodate

the majority of Atlas Sound 8" tile bridges, mounting rings and

enclosures. When specifying mounting hardware be advised that the

dimensions of the GD87W baffle match the Atlas Sound Model 62-8.

GD87W SPECIFICATIONS

Size 8” (205mm)

Power Handling 25 Watts Peak, 15 Watts RMS

Sensitivity 96dB Average

Impedance 8 Ohms Nomina

Frequency Response 45 Hz-19 kHz Nominal, 55 Hz-15 kHz ±5dB

Dispersion 105° (2 kHz Octave Band, -6dB Points)

Diameter & Depth 8.125” (205mm) Dia. & 2.875” (73mm) Deep

Mounting Dimensions 7.625” (194mm) Bolt Circle

Cone Material Treated Paper

Surround Material & Damping Damped Self Edge

Flux Density 10,600 Gauss, 1.06 Tesla

Magnet Weight Nominal, 10 oz. (260g)

Basket Material Stamped Plated 20 ga. CRS

VC Diameter 1” (25mm)

VC Material Copper

VC Former Material Black Anodized Aluminum

VC Winding Width .225”

Top Plate Thickness .239”

Weight 32 oz. (908g)

THIELE-SMALL PARAMETERS

Pe 15 watts

Fs 125 Hz

Xmax .05”

Resistance 7.3 ohms

Qts 0.8

Qes 0.95

Qms 5.2

BL 7.9 N/A

Efficiency 1.90%

Vas .32 (ft3)

Sd 33.2 (in2)

Le@1kHz .36 mH

Mms .39 oz.

Cms .024 in./lb.

Transformer Specifications

Frequency Response 50Hz-15kHz (±1dB)

Primary Taps (Watts) 1, 2, 4 & 8

Secondary Impedance (ohms) 4 & 8

Maximum Insertion Loss .6dB

Primary Termination 6" (152mm) Com. Lead Color Coded

Core Size 1" x 3

⁄4" (25 X 19mm)

Power Rating (Watts) 8

GD87W

(Front View) (Rear View)

Specifications subject to change without notice

1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A.

TELEPHONE: (800) 876-3333 / FAX (800) 765-3435 AtlasSound.com

GD87W Frequency Response

(Transformer Bypassed)

Frequency Hz

dB Pa

GD87W Impedance

(Transformer Bypassed)

Frequency Hz

Ohms

Fundamental

Fundamental vs. 2nd & 3rd Harmonics

Frequency Hz

2nd Harmonic

3rd Harmonic

* (C) Speaker mounting stud pattern.

** (D) Baffle mounting hole pattern.

EQ81 tile bridge works only with 96-8 Series enclosures.

Side ViewFront View

GD87W BAFFLE INFORMATION

DIMENSIONS MOUNTS OPTIONAL

MODEL DIA. (A) PROJECTS (B) (C)* (D)** ENCLOSURE (OR) MTG. RING TILEBRIDGE

12GD87W 3

⁄4" 1⁄4" 75

⁄8" 111

⁄4"

(EZ )95-8 Series, T95-8 Series,

75-8(E1)(E2), 81-8R(S)

(324mm) (6mm) (194mm) (286mm) EZ96-8, CS95-8(NS), 76-8(E1)(E2),

199-8, Q408, 96-8 Series P77-8, P78-8 EQ81s

GD87W OCTAVE BAND POLARS

Produkt Specifikationer

Mærke:	Atlas Sound
Kategori:	Højttaler
Model:	GD87W

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