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Description

The Advanced Audio CM12se is a large-format condenser tube microphone with a capsule design and tube circuitry based on those of the famous AKG C12. Like the original C12 it is an outstanding choice for vocals and acoustic instruments, including percussion, drums and grand piano, as well as for distant miking. Capsule The CM12se features Advanced Audio’s own AK12 capsule, an edge-fed, dual diaphragm capsule skinned with German mylar that has a frequency response matching within ±2dB the response of the AKG CK12 capsule. The capsule in the CM12se is hand tested in our shop. Cicuit The CM12se’s circuit has been optimized for the 6072a dual triode tube. The unused half of the 6072a is incorporated as a cathode follower, resulting in a much lower output impedance than that of the original circuit. This lower output impedance improves the damping factor and allows the use of a transformer with half the turns-ratio of the original C12. The result is a circuit with at least 6db more headroom than the original circuit with a better low frequency and high frequency response. Output The CM12se utilizes a larger BV18 dual-bobbin transformer with an 8:1 ratio. The larger BV18 transformer can handle 3dB more level then the BV11 before distortion and has 3dB less output. When close miking percussive sound sources the CM12se will recover faster from a larger transient signals and drive the microphone preamp with 3dB less level than the CM12 when placed in the same position. The BV18 transformer is driven through a 2.2-ufd mylar capacitor to take advantage of the ability of both capsule and transformer to respond to frequencies reaching down to 10Hz. The transformer can deliver +18dBm with less than 1% distortion across the audio spectrum.

Discussions

Best DIYless AKG C12 Clone

...— Premium Microphone Capsules Used in: ? 4) Advanced Audio Microphones AK12 Capsule ($99 USD) AK12 Capsule | Advanced Audio Microphones Used in: Advanced Audio CM12se ($845) 5) MBHO Capsule (Not sure which is C12 copy, maybe KA 1000 N) - not currently for sale to the public MBHO GmbH Mikrofonbau Haun - state of the art microphones handmade in...

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Overrated/Underrated Mics

...ShuaiYin Electronics Co. which is loosely based on one of the classic mics of all time, the AKG C12. The Advanced Audio CM12se and Stellar CM-5 are also variants of the same SYT1100, manufactured in the same factory. However, whilst the Advanced Audio and Stellar microphones ship with better quality, larger edge terminated capsules,...

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Microphone choice. (AT4040, SM7B, Blue Baby Bottle, Rode NT1, TLM 102)

Advanced Audio CM12se. half way between C800 and C12. Close to the C800 sound with a good tube mic.

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