KEY FEATURES

• Optimized for Close-up Use
• Superior Gain-Before-Feedback
• Tight HyperCardioid Pattern
• Comfortable Non-Slip Grip
• Lightweight

PRIMARY SPECIFICATIONS

Frequency Response,
Close Response: 25 to 21,000 Hz
Far Response: 55 to 21,000 Hz

Polar Pattern: HyperCardioid

Open Circuit Voltage 3.1 mV/Pascal @ 1000 Hz

Sensitivity: -51 dB
(where 0 dB = 1 mW/10 dynes/cm2)

Dynamic Range: 144 dB

Equivalent
Output Noise: 14 dB
(0 dB = .0002 dyne/cmz)

Impedance: 150 ohms balanced(Lo-Z)

Weight: 7.05 ounces(200 grams)

Dimensions,
Height: 7.12 inches(181 mm)
Diameter: 2.05 inches(52 mm)
Shank: 0.80 inches(20 mm)

The Altec Lansing AL45ND is a hypercardioid dynamic microphone utilizing a revolutionary neodymium alloy magnet with four times the power potential of conventional microphone magnets. With a computer-optimized design, the AL45ND magnet structure provides unprecedented sensitivity while the more uniform magnetic field lowers distortion during peak sound pressure levels.
The large diaphragm contains 50 percent more surface area than conventional designs and is reinforced to prevent "breakup." The result is an extended high-frequency response with an open, transparent sound quality.
The exceptional sensitivity of the AL45ND combined with the inherently low noise of a dynamic transducer insures a superior signal-to-noise ratio ready for digital recording and sampling.
To further reduce noise, a highly effective humbucking coil is used to cancel hum from lighting and other sources.
The AL45ND microphones utilizes an advanced vibration-isolation material. This unique foamed elastomer is specifically formulated for vibration control. A foam pop filter is included to reduce both wind noise and vocal P-pops.
The uniform hypercardioid polar pattern of the AL45ND insures superior gain-before-feedback in live applications and better isolation in the studioat all frequencies-compared with other directional microphones with widely varying polar characteristics.