Rane MS-1 Mic Preamplifier, sn089322.

The Rane MS-1 has all of the features you might need for a Professional, high quality mic preamplifier in any application; Phantom power, Phase switch, remote power supply for lower noise, Continuously variable level control, Balanced I/O, and an Overload indicator.  

This unit is in excellent condition, and will be retested prior to sale.  Please note the power supply is not included with this unit.

Here's some Data from Rane:

The MS 1 provides 48 V switchable Phantom Power with indicator LED, continuous rotary Gain trim between 21.5 dB and 60 dB, overload LED, and XLR balanced Input & Output connectors. A Phase Invert switch and high-current cross- coupled output line drivers round out the features.  The MS 1 utilizes one of the finest ultra low noise amplifier designs available. Featuring a true differential input with high common-mode rejection, use of the MS 1 guarantees performance usually found only in mixing consoles costing thousands of times as much. Of course, for all of that extra money you receive a proportional increase in KPSI (knobs per square inch).

Features:

• Gain Control with Overload Indicator
• Phase Invert Switch
• Switchable 48V Phantom Power
• Ultra Low Noise Design
• True Differential Input
• Cross-Coupled Line Driver

The manual is (still) available on Rane's website and you can view it here.