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Omni-directional test and measurement microphone for RTA and software systems.
The TM1 is a 6 mm pre-polarized condenser microphone used for test and measurement applications. The TM1 is known for its linearity, accurate response, consistency, ease of use and affordability.
Equipped with a uniformly controlled omnidirectional polar pattern, the TM1 is designed to capture acoustic measurements for room analysis software programs, real time analyzers and other sound control devices. With a flat frequency range of 20 Hz – 25 kHz, the TM1 is an excellent tool for sound engineers, sound companies and recording enthusiasts.
The TM1 is designed, machined, assembled and tested by Audix in the USA.
Model Variation: TM1 PLUS - includes calibration data file and sensitivity, threaded acoustic windscreen, and CA4231 machined calibration adapter *
*Bruel & Kjaer® 4231 sound level calibrator or equivalent
| Transducer | Pre-polarized Condenser | | Polar Pattern | Omnidirectional | | Frequency Response | 20Hz to 25kHz (+/- 2dB) | | Dynamic Range (Typical) | 112dB | | Signal-to-Noise Ratio | 66dB | | EIN | 28dB A-weighted | | Maximum Input Sound Level | 130dB with distortion | | Power Requirements | 18 - 52V Phantom | | Output Impedance | 200 ohms | | Output Connectors | 3-pin XLR | | Sensitivity | 6.5mV / Pa @ 1k | | Housing | 4 Piece Precision Machined Brass | | Dimensions | Length 5.9" (150mm) |
| The C 414 B/XLS 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. The C 414B/XLS is designed to deliver accurate pickup of all acoustic instruments and voices.
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, hypercardioid 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 dB, -12 dB and -18 dB pre-attenuation levels which are accomplished by changing the polarization voltage to the capsule. The C 414 B/XLS 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 414 B/XLS has a transformerless output and all-metal chassis, making it immune to electrical interference and RF from digital equipment, video monitors and wireless systems. It comes complete in an all-metal road case with the AKG H-85 shock mount, a PF80 external two-stage pop filter, a W414X external windscreen and an individually-measured chart showing the response curve of the microphone. It is also available in factory-matched stereo pairs packaged with a H50 stereo bar instead of the external pop filter.
The C 414B/XLS is built in Vienna, Austria and comes with a three-year limited parts and labor warranty.
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
H 85 professional shock mount/stand adapter, PF 80 external pop filter and W 414 X external windscreen
High sound pressure level capability 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
Optional R 414 remote control unit (available by the end of 2004) offers full control of all switchable parameters via standard microphone cable and 3-pin XLR-type connectors
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
Power Requirements: 48 V phantom power to DIN/IEC
Connector: 3-pin XLR
Dimensions: 2" x 1.5" x 6.3“
Net Weight: 10.6 oz
Shipping Weight: 5 lbs (2.27 kg) |
A high performance mini-condenser for sound reinforcement and recording. Great for instruments or drums. The ultra-uniform pickup pattern provides high gain before feedback and excellent rejection of unwanted noise.
Other features include:
- Mew A98D flexible drum mount
- SPL handling to 160dB
- frequency response of 20 to 20,000Hz and included preamplifier
- shock mount and windscreen
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Legendary among harmonica players for its classic blues harp sound, the 520D's tradition is carried on by the 520DX "Green Bullet" and has a contoured size and shape that fits perfectly between harmonica and hands. - New volume control knob allows musicians to adjust the volume to fit each musical situation
- New rugged, dynamic cartridge with improved response
- High-impedance, omnidirectional
- Supplied with 1/4 inch connector
- Frequency response: 100 to 5,000 Hz
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KSM44A Multi-Pattern Dual Diaphragm Microphone
Premium microphone with three polar pattern options (cardioid, omnidirectional, bidirectional).
Features - Prethos® Advanced Preamplifier Technology: Class A, discrete, transformerless preamplifier provides transparency, extremely fast transient response and no crossover distortion. Minimizes harmonic and intermodulation distortions.
- Groundbreaking specifications: 4dB of self-noise and max SPL of 131 dB for a total dynamic range of 127 dB – an increase of 7 dB that defines the new standard for cleanly nuanced audio capture
- Multiple polar patterns–cardioid, omnidirectional and bidirectional–for maximum flexibility in a wide variety of recording applications
- Dual 1 inch, externally biased, ultra-thin, 2.5 μm, 24 Karat gold-layered, low mass diaphragms provide superior frequency response
- Premium electronic components and gold-plated internal and external connectors
- Subsonic filter eliminates rumble from mechanical vibration below 17 Hz.
- Switchable 15 dB pad for handling extremely high sound pressure levels (SPLs)
- 3-position switchable low-frequency filter helps reduce unwanted stand vibration noise or counteract proximity effect
- Integrated three-stage "pop” protection grille reduces plosives and other breath noise
| Type | Condenser (externally biased) | | Frequency Response | 20 to 20,000 Hz | | Polar Pattern | Cardioid, Omnidirectional, Bidirectional | | lmpedance | 50 ohms | | Phantom power required? | 11–52 V DC phantom power (IEC-61938) 5.8 mA, maximum |
| The Shure KSM141 is an end-addressed condenser microphone with mechanically switching dual polar patterns (cardioid and omnidirectional). Designed for studio use, yet rugged enough for live applications, the KSM141 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 mechanical polar pattern switch for highly consistent cardioid and true omnidirectional polar patterns. Provides flexibility in a wide variety of recording applications
- 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
- Three-position switchable pad (0 dB, 15 dB, and 25 dB) 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 to reduce background noise and counteract 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 KSM141 are listed below. Microphone use, however, is a matter of personal taste. The KSM141 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 |
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