CLASSIC CARDIOID DYNAMIC STUDIO MICROPHONE. The SM7B dynamic microphone has a smooth, flat, wide-range frequency response appropriate for music and speech in all professional audio applications. It features excellent shielding against electromagnetic hum generated by computer monitors, neon lights, and other electrical devices. The SM7B has been updated from earlier models with an improved bracket design that offers greater stability. In addition to its standard windscreen, it also includes the A7WS windscreen for close-talk applications. Flat, wide-range frequency response for exceptionally clean and natural reproduction of both music and speech. Bass rolloff and mid-range emphasis (presence boost) controls with graphic display of response setting. Improved rejection of electromagnetic hum, optimized for shielding against broadband interference emitted by computer monitors. Internal “air suspension” shock isolation virtually eliminates mechanical noise transmission. Highly effective pop filter eliminates need for any add-on protection against explosive breath sounds, even for close-up vocals or narration. Yoke mounting with captive stand nut for easy mounting and dismounting provides precise control of microphone position. Classic cardioid polar pattern, uniform with frequency and symmetrical about axis, to provide maximum rejection and minimum coloration of. Rugged construction and excellent cartridge protection for outstanding reliability. Frequency Response: 50 to 20,000 Hz. Electromagnetic Hum Sensitivity (Typical, Equivalent SPL/milliOersted). 60 Hz: 11 dB. 500 Hz: 24 dB. 1 kHz: 33 dB. Impedance: 150 ohms for connection to microphone inputs rated at 19 to 300 ohms. Output Level (at 1,000 Hz): Open Circuit Voltage: – 59.0 dB (1.12 mV) 0 dB = 1 volt per Pascal. Switches: Bass rolloff and mid-range emphasis: Slotted response selector switches. Cartridge Shock Mount: Internal air-suspension shock and vibration isolator. Microphone Connector: Three-pin professional audio (XLR). Swivel Assembly: Integrated, captive nut for ease of attachment to stand, fits 5/8 in. Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3. Case: Dark gray enamel aluminum and steel case with dark gray foam windscreen. Net Weight: 765.4 g. There are some items which are not covered by the DSR’s including Software and Hardware that includes Software needed for it’s operation and Music items (Records, CD’s DVD’s and so on), (mainly in ear headphones and microphones). This amount will be decided by our staff after inspection of the items. If you have received an item and it is faulty then please get in touch straight away. We will do our utmost to sort out any problem quickly and to your satisfaction. These items will be collected, and replaced with an identical product (subject to availability of stock). We may ask you to post small, low cost items, such as headphones, back to us.