Overview: MXL V67i is unique in that it has two capsules. Designed to provide you with a versatile instrument capable of addressing a wide range of studio applications, the V67i is like having two mics in one - with the front side having a warm, lush sound, and the microphone’s back side simulating some of the brighter sounding vintage capsules characteristic of early 60s tube microphones.
The two capsules differ primarily in their high-frequency response; the “bright” side has 6dB higher response above about 4kHz, and 2dB lower response below 200Hz. Note that even the “Warm” mode has a pronounced HF peak (+4dB @ 10kHz), so the “Bright” mode is even more hyped (+11dB @ 9kHz).
The amplifier circuit uses a 12AT7 dual-triode tube.
Other Resources:
http://recordinghacks.com/microphones/MXL/V67i-Tube
Interested in something similar to the MXL V67i Tube? Check out the MXL Revelation II!