AKG D112 – Large-Diaphragm Dynamic Microphone

The D 112 has earned a well-deserved reputation as the best kick drum microphone ever made. Period. Heavy-footed drummers won?t faze it, because the D 112 handles up to 168 dB SPL with no audible distortion. A specially engineered diaphragm with very low resonance frequency maintains solid and powerful response below 100 Hz, while a narrow band presence rise at 4 kHz punches through dense mixes with little or no added EQ. The result is a kick drum sound that ideally balances precise definition and forceful impact. The D 112 is also an excellent choice for use with bass cabinets, trombones, etc. Built in windscreen, stand adapter SA 40 included.

Specifications

Polar pattern: cardioid
Frequency range: 20?17,000 Hz
Sensitivity: 1.8 mV/Pa (-75 dBV re 1?bar)
Max. SPL for 0.5 % THD: outside measurement range
Equivalent noise level: 73 dB (A)
Electrical impedance: 210 Ohms
Recommended load impedance: =600 Ohms
Connector: 3-pin male XLR
Finish: dark gray metallic enamel
Size: 150 mm (59 in.) H x 70 mm (28 in.) W x 115 mm (45 in.) ?
Net/shipping weight: 380/990 g (13.4 oz./ 2.2 lbs.)

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

The D 40 with its solid all-metal body will stand up to the hardships of night-after-night onstage use "with a smile“.
The Varimotion diaphragm deep-drawing process allows the diaphragm itself to be fine-tuned with no need for tuning resonators, leading to a quantum leap in audio performance.
The transducer is protected by a sturdy wire-mesh cap and takes extremely high sound pressure levels with ease.
An integrated stand adapter and standard H 440 mounting bracket for snare drums, tom-toms, etc. make the D 40 a highly versatile tool for use on drums, percussions, wind instruments, and guitar amps.

Musical instruments, Live applications.
Dynamic microphone designed for drums and percussions, wind instruments, and guitar amps
Patented AKG Varimotion diaphragm
Custom built capsule mounting
Spring steel wire-mesh cap
Rugged all-metal body withstands typical tough handling on stage

Type Cardioid
Polar pattern 75 to 20,000 Hz
Sensitivity 4 mV/Pa (-48 dBV)
Max. SPL 144/156 dB SPL (for 1%/3 % THD)
Equivalent noise level 18 dB-A
Impedance =1000 ohms
Connector 3-pin XLR
Finish dark stage blue
Dimensions length 104 mm (4.1 in.) height (incl. stand adapter): 79 mm (3.1 in.) max. dia.: 44 mm (1.7 in.)
Net weight 245 g (8.6 oz.)
 

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

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