Bogen Near a2 User manual

Ramsey, NJ 07446 U.S.A.

tel 201-934-8500 •fax 201-934-9832

e-mail: [email protected] •www.nearspeakers.com

MODELS A2, A6, A8, AND VARIATIONS

A-SERIES ENVIRONMENT-PROOF

INDOOR/OUTDOOR LOUDSPEAKERS

SPECIFICATIONS

NEAR™TECHNOLOGIES

MODEL NUMBER

MID/BASS DRIVER

TWEETER

FREQ. RESPONSE (-10dB)*

IMPEDANCE

POWER HANDLING (MAX.)

SENSITIVITY (1W/1M, 8-ohm)

POWER TAPS (T/E versions)

DISPERSION ANGLES

DIMENSIONS (in)

(cm)

PRODUCT WEIGHT (lbs / kg)

SHIPPING WEIGHT (lbs / kg)

A2 / A2T / A2E

6" MDT™

0.5" (coaxial)

55Hz to 20kHz

8-ohm / 70V / 100V

A2: 100W @ 8 ohms

A2T/E: 16W @ 70V/100V

88 dBspl

4W, 8W, 16W

Horizontal - 90˚

Vertical - 90˚

9 dia. x8 D

22.9 dia. x20.3 D

A2: 8 lbs; 3.6 kg

A2T/E: 10 lbs; 4.5 kg

A2: 10 lbs; 4.3 kg

A2T/E: 12 lbs; 5.2 kg

A6 / A6T / A6E

6" MDT™

1" titanium

50Hz to 20kHz

8-ohm / 70V / 100V

A6: 150W @ 8 ohms

A6T/E: 32W @ 70V/100V

89 dBspl

8W, 16W, 32W

Horizontal - 110˚

Vert. - 45˚ (up), 35˚ (down)

13-7/16 Lx7-1/8 Wx7-11/16 D

34.1 W x18.1 H x19.5 D

A6: 11 lbs; 5 kg

A6T/E: 12 lbs; 5.4 kg

A6: 14 lbs; 6.1 kg

A6T/E: 15 lbs; 6.6 kg

A8 / A8T / A8E

8" MDT™

1" titanium

45Hz to 20kHz

8-ohm / 70V / 100V

A8: 175W @ 8 ohms

A8T/E: 64W @ 70V/100V

91 dBspl

16W, 32W, 64W

Horizontal - 100˚

Vert. - 45˚ (up), 35˚ (down)

17-13/16Lx10-3/16 Wx10-7/8 D

45.2 W x25.9 H x27.6 D

A8: 17 lbs; 7.7 kg

A8T/E: 20 lbs; 9 kg

A8: 21 lbs; 9.3 kg

A8T/E: 24 lbs; 10.7 kg

NEAR’s exclusive MDT™ metal-alloy diaphragm is about as light as is physically possible – nearly the ideal

massless piston. The benefits are immediately recognized in the musical accuracy, fine detail of sound,

and ease of listening. Here is a summary of MDT benefits:

• High rigidity and low mass of metal versus traditional papers and plastics

• Extremely stable cone structure over long periods of time

• Fast transmission of sound through the diaphragm means low energy storage

• Special anodizing process creates a ceramic coating for increased stiffness

• Efficient heat-sinking of voice-coils under long-term, high-power situations

In addition to MDT, another unique technology is incorporated into NEAR speakers: Magnetic Liquid

Suspension (MLS™). MLS eliminates the traditional mechanical centering device (the “spider”) for the

voice-coil and replaces it with a thick magnetic fluid that remains permanently suspended in the gap of

the magnet, allowing the voice-coil to remain centered and to operate with extreme linearity. In fact, the

louder it plays, the more accurate the centering forces become. Here is a summary of MLS benefits:

• Voice-coil is constantly centered as it moves up and down, for lower distortion

• Voice-coil is more efficiently heat-sinked by fluid instead of air

• Dual-layer voice-coil, with separate inner and outer windings, reduces distortion at high output levels

• Greater linearity is accomplished because the mechanical spider is eliminated

• Constant lubrication of the gap prevents oxidation from outdoor use

• Long-term operation is more consistent since fluid doesn't change characteristics

• Longer excursions with smaller diameter woofers; spiders limit excursions

OWNER’S GUIDE

54-2033-02R2

Printed in Taiwan 0010

*Half-Space Response

WARNING: Mounting brackets must be secured in accordance with local codes. If in doubt,

consult a professional contractor to determine the integrity of the structure to which the bracket

will be attached. When required, a user-supplied safety strap can be secured to the back of the

speaker cabinet using the threaded brass insert and supplied screw.

MULTIPLE SPEAKERS AND SOUND COVERAGE

Placement is critical when the goal is smooth, even sound coverage of an area. Horizontal and

vertical dispersion usually vary with 2-way speakers, so installation orientation should be consistent.

Models A6 and A8 deliver about 110 and 100 degrees of horizontal sound coverage, respectively,

while the coaxial A2 provides about 90 degrees. Too great a distance between any 2 speakers

will create a dead spot in the coverage. When in doubt, use more speakers to ensure adequate

coverage.

OTHER FACTORS TO CONSIDER

Distance is not the only factor affecting sound intensity. Others that should be considered in the

planning phase are adjacent surface reinforcement and environmental effects such as tempera-

ture extremes and humidity (mainly in outdoor installations).

LOW FREQUENCY OUTPUT

Bass output level depends on a speaker’s location. The more reflecting surfaces in proximity to

the speakers (walls, ceilings, floors), the greater the bass output. Therefore, speakers mounted in

free space (e.g., hanging from an overhead support) will produce comparatively less bass output.

UNDERPOWERING VS. OVERPOWERING

Most speaker damage is caused by amplifiers with too little power. An overdriven amp sends

clipping distortion to the speakers. Clipping is usually audible; it may vary from a harsh sound to

a fuzzy or blurry sound. If you hear clipping at loud volume levels, turn down the volume until the

distortion is no longer present. Damage caused by operating the speakers at distorted volume

levels is not covered by the warranty.

PAINTING

The speaker cabinet and grille can be painted with a thin coat of spray paint. Remove the grille

and mask the speaker assembly so that only the cabinet gets painted. Then, if desired, spray the

grille lightly to avoid plugging the holes.

MAINTENANCE

None required. Speaker cabinets can be wiped clean with a soft, damp cloth.

FLAT SURFACE 90-DEGREE ADJOINING SURFACES

(secure both ends) CANTED

A6 and A8 models are

too heavy for this type

of mounting

A2 MODELS ONLY!

COMMON (–) CONNECTIONS

TAP (+) CONNECTIONS

A2T/E

A6T/E

A8T/E

MODEL

IN FROM AMP OR

PRECEDING SPEAKER

OUT TO NEXT SPEAKER

70V/100V

16W

5 SPEAKERS CONNECTED IN PARALLEL USING 16W TAPS

AMPLIFIER WITH 70V/100V OUTPUT

2 SPEAKERS PER CHANNEL CONNECTED IN PARALLEL

NOTE: The total number of speakers multiplied by the tap value cannot exceed the output power

(in watts) of the 70V/100V amplifier. The above example shows 5 speakers. Using the 16W taps,

you need an amplifier with at least (5) x (16) = 80W. A good rule of thumb is to select an amplifier

with 20% greater power; in this case, an amplifier that delivers about 100W.

Observe correct

polarity for maximum

bass performance.

BACK PANEL OF 70V/100V MODELS

EXAMPLE OF 70V/100V SYSTEM CONFIGURATION

EXAMPLE OF 8ΩSYSTEM CONFIGURATION

BACK-PANEL CONNECTIONS

BRACKET INSTALLATION

BACK PANEL OF 8ΩMODELS

NEAR A-SERIES ENVIRONMENT-PROOF INDOOR/OUTDOOR LOUDSPEAKERS

WARNING: Mounting brackets must be secured in accordance with local codes. If in doubt,

consult a professional contractor to determine the integrity of the structure to which the bracket

will be attached. When required, a user-supplied safety strap can be secured to the back of the

speaker cabinet using the threaded brass insert and supplied screw.

MULTIPLE SPEAKERS AND SOUND COVERAGE

Placement is critical when the goal is smooth, even sound coverage of an area. Horizontal and

vertical dispersion usually vary with 2-way speakers, so installation orientation should be consistent.

Models A6 and A8 deliver about 110 and 100 degrees of horizontal sound coverage, respectively,

while the coaxial A2 provides about 90 degrees. Too great a distance between any 2 speakers

will create a dead spot in the coverage. When in doubt, use more speakers to ensure adequate

coverage.

OTHER FACTORS TO CONSIDER

Distance is not the only factor affecting sound intensity. Others that should be considered in the

planning phase are adjacent surface reinforcement and environmental effects such as tempera-

ture extremes and humidity (mainly in outdoor installations).

LOW FREQUENCY OUTPUT

Bass output level depends on a speaker’s location. The more reflecting surfaces in proximity to

the speakers (walls, ceilings, floors), the greater the bass output. Therefore, speakers mounted in

free space (e.g., hanging from an overhead support) will produce comparatively less bass output.

UNDERPOWERING VS. OVERPOWERING

Most speaker damage is caused by amplifiers with too little power. An overdriven amp sends

clipping distortion to the speakers. Clipping is usually audible; it may vary from a harsh sound to

a fuzzy or blurry sound. If you hear clipping at loud volume levels, turn down the volume until the

distortion is no longer present. Damage caused by operating the speakers at distorted volume

levels is not covered by the warranty.

PAINTING

The speaker cabinet and grille can be painted with a thin coat of spray paint. Remove the grille

and mask the speaker assembly so that only the cabinet gets painted. Then, if desired, spray the

grille lightly to avoid plugging the holes.

MAINTENANCE

None required. Speaker cabinets can be wiped clean with a soft, damp cloth.

FLAT SURFACE 90-DEGREE ADJOINING SURFACES

(secure both ends) CANTED

A6 and A8 models are

too heavy for this type

of mounting

A2 MODELS ONLY!

COMMON (–) CONNECTIONS

TAP (+) CONNECTIONS

A2T/E

A6T/E

A8T/E

MODEL

IN FROM AMP OR

PRECEDING SPEAKER

OUT TO NEXT SPEAKER

70V/100V

16W

5 SPEAKERS CONNECTED IN PARALLEL USING 16W TAPS

AMPLIFIER WITH 70V/100V OUTPUT

2 SPEAKERS PER CHANNEL CONNECTED IN PARALLEL

NOTE: The total number of speakers multiplied by the tap value cannot exceed the output power

(in watts) of the 70V/100V amplifier. The above example shows 5 speakers. Using the 16W taps,

you need an amplifier with at least (5) x (16) = 80W. A good rule of thumb is to select an amplifier

with 20% greater power; in this case, an amplifier that delivers about 100W.

Observe correct

polarity for maximum

bass performance.

BACK PANEL OF 70V/100V MODELS

EXAMPLE OF 70V/100V SYSTEM CONFIGURATION

EXAMPLE OF 8ΩSYSTEM CONFIGURATION

BACK-PANEL CONNECTIONS

BRACKET INSTALLATION

BACK PANEL OF 8ΩMODELS

NEAR A-SERIES ENVIRONMENT-PROOF INDOOR/OUTDOOR LOUDSPEAKERS