KEY FEATURES
• Natural Response
• Exceptional Vocal Clarity
• Traditional Cardioid Pattern
• Large Reinforced Diaphragm
• High Output

PRIMARY SPECIFICATIONS
Frequency Response.
Close Response: 35 to 19,000 Hz
Far Response: 65 to 16,000 Hz

Polar Pattern: Cardioid

Open Circuit Voltage 2.2 mV/Pascal @ 1000 Hz

Sensitivity: -53 dB
(where 0 dB = I mW/10 dynes/cm2)

Dynamic Range: 141 dB

Equivalent
Output Noise: 17 dB
(0 dB = .0002 dyne/cm z)

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 AL25ND is a cardioid dynamic microphone utilizing a revolutionary neodymium alloy magnet with four times the power potential of conventional microphone magnets. With a computer-optimized design, the AL25ND 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 AL25ND microphones utilizes an advanced vibration-isolation material. This unique foamed elastomer specifically formulated for vibration control. Combining vibration-isolating material
with elastomeric handle and windscreen bumper forms an advanced technology vibration-isolation system which reduces all forms of handling noise for the most demanding situations.
The AL25ND pop filter incorporates a special molded retainerwhich insures optimum placement of the pop filter material, for maximum rejection of both wind noise and vocal P-pops. The retainer makes the pop filter an integral part of the microphone's removable upper grille assembly, allowing easy cleaning for continued top performance.
The uniform cardioid polar pattern of the AL25ND 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.