The C414 XLS/ST stereo condenser microphone matched pair bundle contains two C414 XLSs that have been selected from thousands of individual microphones and hand tested for sensitivity characteristics that lie within 1dB of one another throughout the range of 300Hz to 8kHz in cardioid mode. They come with a full accessory kit that includes a pair of shock mounts, a stereo bar, two foam windscreens, and hardshell carrying case. You also get a copy of your microphones' performance charts to verify their matched performance characteristics.The C414 XLS is an astonishing microphone. Engineered for highest linearity and neutral sound, it maintains the reliable sonic character of the legendary C414 B-ULS (the longest-lived C414 model) while introducing some astonishing new features. The 5-pattern C414 has been one of the most universal and versatile large diaphragm microphone for decades - widely used for accurate, exquisitely detailed pickup of acoustic instruments. Now, the C414 XLS sets a new benchmark in microphone versatility by introducing a 9-pattern design, while achieving reference-quality results through leading-edge technology and state-of-the-art components.The C414 XLS offers nine pickup patterns which enable you to choose the perfect setting for every application. In addition to the five patterns traditionally offered by the C414 (omnidirectional, wide cardioid, cardioid, hypercardioid, and figure eight), you also get four intermediate settings that let you dial in the best pattern to suite your environment. It also features an astoundingly low noise floor and a 152dB dynamic range, making the C414 XLS ideal for any musical environment. A locking mode allows you to disable all of the C414 XLS's controls for live-sound applications and permanent installations, and a special "Peak Hold" LED displays even shortest overload peaks.AKG C414 XLS/ST Matched Pair of Multi-pattern Condenser Microphones Features at a Glance:Omni, wide cardioid, cardioid, hypercardioid, figure eight, and four intermediate pickup patternsLock Mode disables all controls easily for live and installation useIncredible Dynamic Range of 152dBThree different bass cut filters and three pre-attenuation levelsPeak Hold LED even detects shortest overload peaksPaired using AKG's sophisticated computer-aided matching methodHighest possible correlation over the whole frequency range and virtually identical sensitivityIncludes carrying case, two windscreens, a stereo bar, and two spider-type shock mountsFrequency range: 20 to 20,000 HzSensitivity: 20 mV/Pa (-34 dBV) +/-0.5 dBMax. SPL: 200/400/800/1600 Pa = 140/146/152/158 dB (0/-6/-12/-18 dB) for 0.5% THDEquivalent noise level: 6 dB-A (0 dB preattenuation) (IEC 60268-4)Signal/noise ratio: 88 dBPreattenuation pad: 0 dB, -6 dB, -12 dB, -18 dB, switchableBass cut filter slope: 12 dB/octave at 40 Hz and 80 Hz; 6 dB/octave at 160 HzImpedance: <=200 ohmsRecommended load impedance: >= 2,200 ohmsPowering: approximately 4 mAConnector: 3-pin XLR to IECDimensions: 50 x 38 x 160 mm (2.0 x 1.5 x 6.3 in.)Net weight: 300g (10.6oz.)Requires +48V phantom power to DIN/IEC