The ALPHA MICtube from Alto is dual-channel microphone preamplifier that combines a dual servo front-end with a tube line drive to provide warmth and color. The unit features a pair of XLR-1/4" TRS phone combo connectors that allow for connection of instruments as well as microphones.
Phantom power is available on a global basis, while a 20dB pad and phase reverse is provided on each channel. Both balanced and unbalanced outputs are available. The ALPHA MICtube is an ideal front-end for personal computer recording and is housed in a compact, half-rack enclosure.
| Number of Channels | 2 |
| Inputs | 2 x XLR-1/4" TRS phone Combo |
| Output |
2 x XLR 2 x 1/4" TS phone, unbalanced |
| Phantom Power | +48V, global |
| Multi Function | No |
| Gain Range | 0dB to +45dB |
| Maximum Output Level | Not specified by manufacturer |
| Frequency Response | 20Hz to 22kHz, +/-3dB |
| Noise | SNR: >90dB |
| Power Requirements | 18VAC via included external power supply |
| Dimensions (WxDxH) | 7.8 x 6 x 1.8" (199 x 153 x 45mm) |
| Weight | 3.1 lbs (1.4kg) |
| Specialties | Variable tube drive circuit for adding varying degrees of coloration or distortion |