1. INTRODUCTION
5
Half rack space
Robust and Compact design
Dual Servo Microphone Preamplifier
20dB pad
+48V phantom power
Phase Reverse
8-Digit Output Level meter
12AX7WA Low Noise Tubes
Output section includes XLR and 1/4" connectors for driving two separate signal
paths
1/4", high Z input on the front panel for instrument preamplification
High quality and fidelity components
SMD Technology for top performance
Manufactured under QS9000, VDA6.1 certified management system
2. FEATURE LIST :
3. CONTROL ELEMENTS
3.1 The Front Panel:
(9) (10) (4) (11) (12) (7) (13) (14) (8)
(6)(3)(5)(2)(1)
Thank you very much for expressing your confidence in LTO products by purchasing
our MICtube Stereo Tube Preamplifier. With the MICtube you have acquired an
extremely musical and flexible Stereo Microphone Preamplifier which is based on many
years of experience and findings in amplifier technology and is used through the world
in renowned studios, sound reinforcement systems as well as in broadcast and televi-
sion studios. The LTO MICtube meets highest and no-compromise requirements
in terms of operation, sound, specifications and workmanship.
The LTO MICtube is a half rack space unit, the heart of the MICtube is an extre-
mely low-noise microphone pre-amp circuit that uses discrete components just like 12A
X7WA Tubes and TL074CD J-FET Quad Operational Amplifier IC to produce a highly
transparent sound! The switchable +48V Phantom Power supply allows you to operate
your condenser microphone more conveniently.
STEREO TUBE PREAMP
MICtube
LTO
R
PHASE
PAD
PHASE
PAD
+48V
PHANTOM
OUTPUT / CHANNEL2
T
M
INPUT GAIN DRIVEDRIVEINPUT GAINMIC INPUT1 MIC INPUT2
0 +300 +30 +400
OUTPUT / CHANNEL1
-24 -18 +18
0
-12 -6 +6 +12
+400
-24 -18 -6-12 0 +12+6 +18
PWR