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Product Description
The Advanced Audio CM48T is a 3-pattern tube microphone based on a combination of the vintage U47 and U48 microphone made after 1958. The CM48T has a traditional single stage Class A U47/U48 type circuit. However, the clever lads at Advanced Audio added a 3-pattern option combining the OMNI feature of the U47 with the figure-8 feature of the U48 while retaining the passive, polarization method of the original U47 and U48 microphones. The CM48T an exceptional microphone with an amazing attention to detail built into a very compact body with extremely high quality components.
In is an excellent choice for vocals, drum overhead, or on acoustic guitar. The CM48T can also easily be placed on electric guitar amplifiers, on a bass cabinet, on kick drum and other high SPL sources, yielding great results. Its small stature and added -10 dB pad allows it to perform recording tasks once thought to be impossible from larger vintage tube microphone circuitry.
It is a perfect addition to any project studio as your first tube mic. It has been designed to work seamlessly in any serious commercial studio as well. You can buy a matched pair without breaking the bank and with the figure-8 option use them as a Blumlein pair.
If you're looking for that vintage tube microphone sound, in a smaller, amazingly affordable package, the Advanced Audio CM48T is that microphone!
Like the original circuit designs, we are using a socketed 7-pin military grade pentode tube wired as a triode. The use of modern, high tolerance components results in a far quieter, more reliable microphone with the extra feature of 3-patterns and a -10 dB pad.
The single Class A tube circuit stage uses a military GE/JAN 5654W sub-miniature 7 pin tube. Great care was take to closely match the plate current and output impedance parameters to that of the original VF14 tube found in vintage U47 & U48 microphones.
Advanced's custom wound miniature BV8 transformer with the traditional 6.5:1 ratio yields outstanding headroom and a warm response rivaling the original larger U47/U48 but or an incredibly economical price.
The CM48T uses Advanced's tried and true, AK47 capsule, the same capsule used in the CM47ve, CM49, CM48fet and CM47fet/CE microphones. All Advanced Audio Microphones capsules are hand skinned using 6 micron, gold sputtered mylar. Each capsule goes through Advanced's rigorous testing procedure.
Features
Specifications
| Package Contents | |
|---|---|
| Filters | |
| Frequency Range | |
| Impedance | |
| Input Pad | |
| Number of Microphones | |
| Polar Pattern | Bi-Directional, Cardioid, Omni-Directional |
| Maximum SPL | |
| Transducer Type | Condenser |
| Tube or Solid State |