AUDIO TECHNICA SERIAL NUMBER CHECK MANUALS
AUDIO TECHNICA SERIAL NUMBER CHECK PROFESSIONAL

The physical design of the AT4040 SM is shared with the other 40-series models, although it is the lightest of the bunch, at just 360g (thanks, mainly, to its output transformer).

AUDIO TECHNICA SERIAL NUMBER CHECK MANUALS

The review mics (I had the luxury of a pair) came without any manuals or technical notes at all, and I had to surf over to the Audio Technica web site for the published specs. The 4040 SM ships in a vinyl-wrapped, foam-lined case, packed in a larger cardboard box that also contains the AT8449 elastic shockmount, supplied as standard. A standard 48V phantom power supply is required for the mic, which produces a nominal output of 25mV at 1pa - pretty typical for the class of mic. The noise floor is slightly lower than the AT4033a's, and is certainly good enough for anything you are likely to want to use this mic for, although it remains a few decibels above the quietest mics available.

Indeed, the specifications boast a 145dB maximum SPL (for one percent distortion) and a dynamic range of 133dB. The one-inch capsule employs a carefully tensioned, gold-sputtered diaphragm to provide 'a smooth, natural sonic characteristic' and the surface-mount preamplifier electronics have been designed to provide low noise and a wide dynamic range, with a high SPL capability. The AT4040 SM is a fixed cardioid-pattern mic using an externally-biased, large-diaphragm capacitor capsule (just like the AT4047) but with transformerless circuitry (more like the AT4033a). I'm making a point of presenting this lineage because the latest addition to the group, the AT4040 SM (launched at the Munich AES Convention earlier this year) sits halfway between the 40 models in terms of both technology and price. This last uses a true externally-biased capacitor capsule with a transformer-coupled output, instead of the electret capsule and transformerless circuitry of the 4033. Photo: Mark EwingOther established 40-series stablemates include the switchable-pattern AT4050 and the valve-based AT4060, as well as the AT4047. Indeed, the current AT4033a still represents a benchmark for many, being a sturdy, no-nonsense, back-electret transducer capable of producing excellent results with a wide variety of sources.

AUDIO TECHNICA SERIAL NUMBER CHECK PROFESSIONAL

Does the 4040 SM have what it takes to become a front-runner?ДЄudio Technica's 40-series professional large-diaphragm condenser microphones have established a fine reputation over many years - more than 10 years in the case of the classic AT4033. At a price point of around ВЈ300, there are already very good contenders for your money on the quality condenser mic market.

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