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****** Page 1 ****** ATM350a User Manual / Cardioid Condenser Instrument Microphone Packages ATM350U : ATM350a, AT8490, AT8491U, AT8543, AT8468, hard shell carry case ATM350UL : ATM350a, AT8490L, AT8491U, AT8543, AT8468, hard shell carry case ATM350PL : ATM350a, AT8490L, AT8491P AT8543, AT8468, hard shell carry case ATM350W : ATM350a, AT8490, AT8491W, AT8543, AT8468, hard shell carry case ATM350D . ATM350a, AT8490, AT8491 D, AT8543, AT8468, hard shell carry case ATM350UcW : ATM350acW, AT8490, AT8491U, AT8468, hard shell carry case Thank you for purchasing this product. Before using the product, read through the user manual to ensure that you will use the product correctly. Please keep this manual for future reference. audio-technica

****** Page 2 ****** Features • Crisp, clear, well-balanced response, even at high SPLs • Attaches to brass, reeds, piano, snare, toms and violin • Dedicated mounting systems permit accurate positioning, provide shock resistance and element protection • AT8453 power module is equipped with switchable go-Hz low-cut filter to minimize pickup of undesired low-frequency sounds • Interchangeable elements available for hypercardioid and omnidirectional polar patterns • Also available in a wireless model, ATM350acW Caution • Do not subject the product to strong impact to avoid malfunction. • Do not disassemble, modify or attempt to repair the product. • Do not handle the product with wet hands to avoid electric shock or injury. • Do not store the product under direct sunlight, near heating devices or in a hot, humid or dusty place. ATM350a Description The ATM350a is a fixed-charge condenser microphone with a cardioid polar pattern. It is designed for use in professional live-sound and studio applications. When used with the available mounts and mounting systems, it provides accurate, consistent pickup of brass, woodwind, piano, drums and many other musical instruments. The flexible gooseneck allows for precise microphone positioning even under demanding performances. The cardioid polar pattern of the microphone is more sensitive to sound originating directly in front of the element, making it useful for controlling feedback and reducing pickup of unwanted sounds. The microphone includes a 4 m (13.11) permanently attached miniature cable. Its free end connects to the provided AT8543 power module via a locking a-pin connector. The output of the power module is a 3-pin XLRM- type connector. A switch in the power module permits choice of flat response or low-frequency roll-off (via integral 80-Hz high-pass filter) to help control undesired ambient noise. The microphone is enclosed in a rugged housing with a low reflectance black finish. ATM350acW Description The microphone is also available in a wireless model, the ATM350acW. The ATM350acW features a 1.4 m (55″) miniature cable terminated with a locking 4-pin connector for use with Audio-Technica UniPak@ body-pack transmitters. The ATM350acW specifications are identical to those of the ATM350a (when using an AT8543 power module). However, no power module is included with the ATM350acW, so there is no low-cut function. AT8491U Description Universal clip-on mount features rugged metal construction to withstand the rigor of stage use. The mount is lined with rubber to provide secure mounting, shock resistance and instrument protection. Specially designed mount minimizes contact with instrument. A locking screw holds the mount securely in place. AT8491P Description Piano mount features a strong rare-earth magnet which permits secure mounting inside a piano or on any metal surface. The mounting base is lined with soft and protective material to avoid damaging the instrument. AT8491W Description The woodwind mount features an adjustable hook and loop fastener strap with rubber pad to firmly secure the mount to the instrument. Specially designed mount minimizes contact with instrument to reduce damping. Rotating gooseneck mount allows easy positioning of the microphone. AT8491D Description The drum mount features a patent pending design which uses the drum lug to securely mount the microphone while still allowing the drum to be tuned. The gooseneck can be positioned vertically or horizontally for optimal placement and a low profile appearance. AT8490/AT8490L Description The AT8490/AT8490L flexible gooseneck permits aiming the microphone in any direction, while a cable strain relief reduces cableRransmitted noise and cable damage. The integral windscreen entirely surrounds the microphone with foam to isolate the microphone from noise transmitted from the instrument and shield the element against accidental damage. AT8468 Description The violin mount fastens beneath the strings between the bridge and the tailpiece to provide outstanding pickup of violin and other stringed instruments. Operation and Maintenance The ATM350a requires 1 IV to 52V phantom power for operation. Output is low impedance (I-OZ) balanced. The signal appears across Pins 2 and 3; Pin 1 is ground (shield). Output phase is “Pin 2 hot”— positive acoustic pressure produces positive voltage at Pin 2. To avoid phase cancellation and poor sound, all mic cables must be wired consistently: Pin I-to-Pin 1, etc. The 80-Hz low-cut filter switch on the AT8543 power module makes it easy to switch from flat frequency response to low frequency roll-off. This minimizes pickup of undesired low frequency noise, such as from air conditioning systems. To engage the high-pass filter, slide the switch toward the “bent” line. Avoid leaving the microphone in the open sun or in areas where temperatures exceed 1100 F (430 C) for extended periods. Extremely high humidity should also be avoided.

****** Page 3 ****** Specifications Element Polar pattern Frequency response Low frequency roll-off* Open circuit sensitivity Impedance Maximum input sound level Dynamic range Signal-to-noise ratio Phantom power requirements Switch* Weight Dimensions Output connector Cable(s) Optional interchangeable elements Accessories Fixed-charge back plate, permanently polarized condenser Cardioid 40 to 20,000 Hz 80 Hz, 12 dB/octave -49 dB (3.5mV) (OdB=lV/Pa, I kHz) 200 ohms 159 dB SPL (l kHzTHD 130 dB (l kHz at Max SPL) 65 dB (1 kHz at IPa, A-weighted) 11 to 52 V DC, 3.5 mA Flat, roll-off Microphone: 14.5 g (0.5 oz), Power module: 90 g (3.2 oz) Microphone: 37.8 mm (1.49″) long, 12.2 mm (0.48″) diameter Power module: 92 mm (3.6211) long, 18.9 mm (0.74″) diameter Power module: Integral 3-pin XLRM-type 4.0 m (13. II) long (permanently attached to microphone), 3.2 mm (0.1311) diameter, 2-conductor shielded cable with HIROSE HR10-typeconnector UE-O omnidirectional, UE-H hypercardioid AT8543 power module, microphone instrument mount, AT8468 violin mount, hard shell carry case e Characteristic weighting measured when connected to an AT8543 power module, • I Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL • For product improvement, the product is subject to modification without notice. ” Mounted on an AT8543 power module. 3300 Polar pattem 27(r 2400 210* 1200 150* 1800 LEGEND 5kHz SCALE IS 5 DECIBELS PER DIVISION Frequency response 40-20,000 Hz 10 dB 50 100 200 500 1k 10k 20k Frequency in Hertz LEGEND Response in dB OO,50cm Roll-off

****** Page 4 ****** Mounting the microphone AT8490/AT8490L Gooseneck (standard/long) Fixing the gooseneck on the mounts The gooseneck can be fixed at every 900 angle. I , Insert the gooseneck until it reaches the bottom of the hole on the mount. Firmly tighten the screw on the mount to secure it. 2. Do not force the screw if there are any foreign objects in the way. Do not use any tools to tighten the screw. Doing so could strip the threads or damage the screw.

****** Page 5 ****** Setting the mounts on instruments AT8491W Woodwind mount O 1. 2. Adjust the position of the microphone by rotating the top of the mount.

****** Page 6 ****** Setting the mounts on instruments AT8491D Drum mount 1. 2. The top bolt rotates freely to allow tuning when the microphone is mounted.

****** Page 7 ****** Setting the mounts on instruments AT8491P Piano mount The mount should be fixed on a metal surface. Keep mobile phones, analog clocks and magnetic cards etc. away from the magnet in the bottom of the mount to prevent content from being damaged or erased. AT8491U Universal clip-on mount 9

****** Page 8 ****** Setting the mounts on instruments AT8468 Violin mount Audio-Technica Corporation 2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan @ 2017 Audio-Technica Corporation Global Support Contact: MADE IN JAPAN ver-1 2016.04.15 142315290-01-02 090C&0862-OOMid ver.2 2011.09,15 audio-technica








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