The Shure SM81 Two Piece Tour Pack is a premium bundle designed for professional audio engineers, featuring two Shure SM81-LC cardioid condenser microphones renowned for their high-quality performance in live and studio settings. These microphones excel in capturing acoustic instruments, cymbals, and overheads, delivering a natural and flat frequency response of 20 Hz to 20 kHz. Their rugged, all-metal construction ensures durability for on-the-road use, while the included windscreen and mic clip provide optimal versatility and protection. The Tour Pack also comes in a durable carrying case, making it ideal for touring musicians and engineers seeking precision and reliability.
Shure SM81
• 0 Hz to 20 kHz frequency response
• Flat response curve for accurate reproduction of sound sources
• Low noise and high output clipping level
• Low distortion over a wide range of load impedances
• Cardioid polar pattern, uniform with frequency and symmetric about axis, providing maximum rejection and minimum coloration of off-axis sounds
• Low RF susceptibility
• Selectable low-frequency response: flat, 6 or 18 dB/octave rolloff
• 0 dB/10 dB lockable attenuator switch
• Phantom powering (DIN 45 596 voltages of 12 to 48 Vdc)
• Rugged steel construction for durability
• Field-usable over wide range of temperature and humidity conditions
BYFP ipCase
• Cubed foam interior
• Waterproof and dust tight design (MIL-STD 810G)
• Molded-in hinge for added protection
• Trigger release latch system
• Snap-down rubber over-molded cushion grip handle
• Ambient pressure equalization valve (MIL-STD 810G)
• Resistant to UV, solvents, corrosion, fungus and impact damage (MIL-STD 810G)
Shure SM81 Microphone
Type: Condenser (electret bias)
Frequency Response: 20 to 20,000 Hz Polar Pattern, Cardioid (unidirectional) response-uniform with frequency, symmetrical about axis
Output Impedance: Rated at 150 ohms (85 ohms actual);
Recommended minimum load impedance: 800 ohms (May be used with loads as low as 150 ohms with reduced clipping level)
Output Configuration and Connector: Balanced, transformer-coupled output; male XLR connector
Sensitivity (at 1,000 Hz): Open Circuit Voltage: -45 dBV/Pascal (5.6 mV) (1 Pascal = 94 dB SPL)
Clipping Level (at 1,000 Hz): 800 ohm Load: -4 dBV (0.63 V),
150 ohm Load: -15 dBV (0.18 V)
Total Harmonic Distortion: Less than 0.5% (131 dB SPL at 250 Hz into 800 ohm load)
Maximum SPL (at 1,000 Hz): 800 ohm load: 136 dB (attenuator at 0) 146 dB (attenuator at -10)
150 ohm load 128 dB (attenuator at 0) 138 dB (attenuator at -10)
Hum Pickup: -3 dB equivalent SPL in a 1 mOe field (60 Hz)
Self-Noise (equivalent sound pressure levels; measured with true rms voltmeter): 16 dB typical, A-weighted 19 dB typical, weighted per DIN 45 405
Signal to Noise Ratio: 78 dB (IEC 651)* at 94 dB SPL *S/N ratio is difference between 94 dB SPL and product's equivalent self noise (SPL A-weighted).
Overvoltage and Reverse Polarity Protection: Max. external voltage applied to pins 2 and 3 with respect to pin 1: +52 Vdc
Reverse polarity protection: 200 mA max. (diode-clamped)
Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3
Cartridge Capacitance: 54 pF
Low Frequency Response Switch Positions: Flat; -6 dB/octave below 100 Hz; -18 dB/octave below 80 Hz, Attenuator Switch Positions (Lockable) 0 or -10 dB
Power: Supply Voltage: 11 to 52 Vdc, positive, pins 2 and 3
Current Drain: 1.2 mA max.
Storage: -29 degrees to 74 degrees C (-20 degrees to 165 degrees F)
Operating: -6.7 degrees to 49 degrees C (20 degrees to 120 degrees F)
Humidity: Storage 0 to 95% relative humidity at room temperature (72 degrees to 80 degrees F, 22 degrees to 27 degrees C)
Case: Steel construction with vinyl metallic paint finish and stainless steel screens
Weight Net: 230 grams (8 oz)
BYFP ipCase
Product Weight: 2.4 lb
Color: Black
Exterior: Hard Case
Interior Dimensions (L x W x D): 12" x 8" x 3.25"
Exterior Dimensions (L x W x H): 12.86" x 9.7" x 3.8"
(2) Shure SM81LC Condenser Microphone
(1) BYFP Customized ipCase
(1) Foam Windscreen
(1) Stand Adapter
(1) Protective Case
(1) Operator's Instructions
