AUDIO TECHNICA ATM 450 CONDENSER HYPER-CARDIOID MICROPHONE FOR INSTRUMENTS

One of the new stars of the Artist Series remake, the ATM450 cardioid condenser offers an innovative side-address stick design for endless placement options and minimal obstructions. The microphone is equipped with an integral 80 Hz hi-pass filter that provides easy switching from a flat frequency response to a low-end roll-off. The ATM450 also features a switchable 10 dB pad that lowers the microphone's sensitivity, providing higher SPL capability for flexible use with a wide range of performers and system configurations. The microphone's extended flat frequency response makes it ideal for high SPLs as well as for live and amplified acoustic instruments. Includes a professional isolation clamp to provide secure mounting, versatile positioning and effective dampening of unwanted mechanical noise.

• Unique side-address stick design maximizes placement options with minimal obstructions
• Uncompromising sound quality for overheads, percussion, acoustic guitar, strings and other acoustic instruments
• Integral 80 Hz HPF switch and 10 dB pad
• Durable performance for professional applications
• Cardioid polar pattern reduces pickup of sounds from the sides and rear, improving isolation of desired sound source
• Rugged, all-metal design and construction for years of trouble-free use
• Includes isolation clamp for shock protection, secure mounting and easy positioning

• Element: Fixed-charge back plate permanently polarized condenser
• Polar Pattern: Cardioid
• Frequency Response: 40-20,000 Hz
• Low Frequency Roll Off: 80 Hz, 18 dB/octave
• Open Circuit Sensitivity: 41 dB (8.9 mV) re 1V at 1 Pa
• Impedance: 200 ohms
• Maximum Input Sound Level: 152 dB SPL, 1 kHz at 1% T.H.D.
• Dynamic Range: 127 dB, 1 kHz at Max SPL
• Signal to Noise Ratio: 69 dB, 1 kHz at 1 Pa
• Phantom Power Requiremens: 11-52V DC, 3.5 mA typical
• Weight: 98 g (3.5 oz)
• Dimensions: 126.9 mm (5.00“) long, 21.0 mm (0.83“) diameter
• Output Connector: Integral 3-pin XLRM-type
• Accessories: AT8471 isolation clamp for 5/8“-27 threaded stands; 5/8“-27 to 3/8“-16 threaded adapter; windscreen; soft protective pouch

• Tailored frequency response provides drums, guitars, vocals, and horns with studio quality sound
• Uniform supercardioid pattern for high gain-before-feedback and superior rejection of off-axis sound
• Hardened steel mesh grille that facilitates use of proximity effect and resists wear and abuse
• Neodymium magnet for high signal-to-noise ratio output
• Advanced pneumatic shock mount system that minimizes transmission of mechanical noise and vibration
• Frequency response: 50 to 16,000 Hz

Audio Frequency Response    20 Hz - 10,000 Hz
Case Material    Die cast zinc
Connector Type    3-pin XLR
Element    Dynamic
Finish    Textured Satin Black
Impedance, Low-Z balanced    150 Ω
Mic Type    Instrumental
Open Circuit Voltage    0.63 mV/Pascal
Polar Pattern    Supercardioid
Power Requirement    Passive
Shipping Weight    23.7 oz (672 g)
Wired/Wireless    Wired
Weight Net    12.84 oz (364 g)

The Shure KSM137 is an end-address condenser microphone with a cardioid polar pattern. Designed for studio use, yet rugged enough for live applications, the KSM137 can withstand extremely high sound pressure levels (SPL). Its low self-noise and extended frequency response make it ideal for recording musical instruments.

Features

• A highly consistent cardioid polar pattern
• Ultra-thin, 2.5 micron, 24 karat gold-layered, low mass Mylar? diaphragm for superior transient response
• Class A, discrete, transformerless preamplifier for transparency, extremely fast transient response, no crossover distortion, and minimal harmonic and intermodulation distortion
• Premium electronic components, including gold-plated internal and external connectors
• Subsonic filter eliminates low frequency rumble (less than 17 Hz) caused by mechanical vibration
• Switchable 15 dB pad for handling extremely high sound pressure levels (SPLs)
• Three-position switchable pad (0 dB, 15 dB, and 25 dB) for handling extremely high sound pressure levels (SPLs)
• Three-position switchable low-frequency filter reduces background noise and counteracts proximity effect

Performance Characteristics

• Extended frequency response
• Low self noise
• Exceptional reproduction of low-frequency sounds
• Can withstand high sound pressure levels (SPL)
• High output level
• No crossover distortion
• Uniform polar response
• Superior common mode rejection and suppression of radio frequency interference

APPLICATIONS

Some typical applications for the KSM137 are listed below. Microphone use, however, is a matter of personal taste. The KSM137 may be used for a variety of applications other than those listed.

• Acoustic instruments -- such as piano, guitar, drums, percussion, strings
• Wind instruments -- brass and woodwind
• Low frequency instruments -- such as double bass, electric bass, kick drum
• Overhead miking -- drums or percussion
• Ensembles -- choral or orchestral
• Room ambiance pick-up -- guitar amplifier or drums

Both the acoustic environment and microphone placement strongly affect the sound obtained from miking a source. You may need to experiment with microphone placement and room treatments to achieve the best overall sound for each application.

Suggested Applications

Acoustic Guitar
Acoustic Bass
Cymbals
Brass/Woodwinds
Orchestra
Ensemble Vocals
Piano
Strings
Room Ambience
Live Recording

Complete With Stereo Bar, Windshield's and Cradle'

The C 414 B-XL II/ST is especially useful for stereo recordings taken from the far field with the inclusion of useful and often valuable room acoustics. The matched pairs consist of two microphones that are within 1 dB to each other in sensitivity and also within 1 dB to each other in the range of 300 Hz to 8,000 Hz of the individual frequency response when used in cardioid mode and are selected from a large quantity of individual microphones using the described criteria by using a proprietary computer program.

Using this matched pair for stereo recordings utilizing various techniques will provide for a good and stable balance without frequency-dependent shifting of the stereo panorama.

The kit comes complete in an all-metal 'Soundtool' Hard Shell road case with 2 x AKG H-85 shock mounts, 2 x W414X external windscreens, an H50 stereo bar and an individually-measured chart showing the response curve of the microphone. See www.dv247.com Alternative Products and Related Products on this page for your options.

The C 414B-XLII has been carefully designed to maintain the legendary sonic character of the C 414 family while integrating new features and performance enhancements made possible by new technology. A classic microphone with a distinctive timbre especially designed for recording of solo vocals and solo instruments.

Whats the difference between the C 414B-XLII and the C 414 B XLS? The main difference between the two current C414 models lies in their frequency responses. The C 414B-XLII has a series of presence rises between 2.5 KHz and 9 KHz. This will make any recording with this microphone brighter or more sibilant than the original sound. This upper mid range boost is quite helpful on vocals and certain instruments such as classical acoustic guitars using nylon or natural strings. The C 414B XLS, see www.dv247.com Alternative Products on this page, has a very flat response that will not color the original sound which is important especially in instrumental recordings. It more suited for general use.

The microphone's 5 pickup patterns are easily selectable via an electronic switch with LED indication and offer the selection of omnidirectional, cardioid wide cardioid, hyper cardioid and figure-eight patterns. The pickup pattern selector switch utilizes a dual-color LED indicator that provides visual indication of the pattern selected and also changes from green to red to indicate if the microphone's output electronics are being overloaded. The pattern selector can also be used to "lock" the microphone's switch settings by pressing and holding it for 3 seconds. On the rear of the microphone, an electronic switch allows the selection of -6, -12 and -18 dB pre-attenuation levels which are accomplished by changing the polarization voltage to the capsule. The C 414B-XLII has switchable bass cut filters of 12 dB-per-octave at 40 Hz and 80 Hz, and a 6 dB-per-octave filter at 160 Hz for control of proximity effect. On-axis sensitivity for all patterns is 23 mV/Pa and its self-noise is an extremely low 6 dB-A.

The C 414B-XLII has a transformerless output and all-metal chassis, making it immune to electrical interference and RF from digital equipment, video monitors and wireless systems.

Features:

• High sensitivity and extremely low self noise
• Five switchable polar patterns for placement and application flexibility
• Two-color LEDs provide quick visual indication of selected polar pattern and output overload
• Elastic capsule suspension greatly minimizes structurally-transmitted noise from chassis vibration
• Supplied with Hard Shell road case with 2 x AKG H-85 shock mounts, 2 x W414X external windscreens and an H50 stereo bar
• High sound pressure level capability, 140 - 158dB, and wide dynamic range
• Completely immune to electrostatic and electro-magnetic interference from digital gear, computer monitors, etc. thanks to solid metal housing and transformerless output stage
• Three switchable bass cut filters and three pre-attenuation pads with LEDs for quick visual indication
• All switchable components operate in low impedance circuits for ultra-high relability even in extremely humid conditions

Specifications:

• Type: 1" large diaphragm pressure gradient microphone
• Polar Patterns: Omnidirectional, wide cardioid, cardioid, hypercardioid, figure eight
• Frequency Range: 20 to 20,000 Hz
• Sensitivity: 23 mV/Pa (-33 dBV) +/-0.5 dB
• Max. SPL: 140/146/152/158 dB SPL (at 0/-6/-12/-18 dB)
• Preattenuation Pad: -6, -12,-18 dB, switchable
• Bass Cut Filter Scope: 12 dB/octave at 40 Hz and 80 Hz; 6 dB/octave at 160 Hz
• Impedance: = 2,200 ohms
• Supply voltage: 48 V phantom power to DIN/IEC
• Current consumption: Approximately 4.5 mA
• Dynamic range: 134 dB minimum
• Environment Temperature range: -10° C to +60° C (14° F to 140° F)
• Relative humidity: 95% (+20° C/68° F), 85% (+60° C/140° F)
• Connector: 3-pin XLR to IEC
• Dimensions: 50 x 38 x 160 mm (2.0 x 1.5 x 6.3 in.)
• Net weight 300 g (10.6 oz.)