MLI1

Hum: Eliminated

The Samson MLI1 is a line level passive isolation box designed to remove hum and buzz caused by ground loops, as well as to convert unbalanced signals to balanced signals for long cable runs. Combining premium sound circuitry with durable, roadworthy construction, the MLI1 provides high-quality signal connection solutions for live, broadcast and studio applications.

Frequency Flatness

The MLI1 features Samson's STL transformer that delivers an extended, ruler flat frequency response from 10Hz–35kHz (±0.2dB) with ultra-low distortion. The transformer isolates the input signal from the output signal, removing any DC noise. The Ground Lift switch disconnects the ground from the Input and Output connections which eliminates hum caused by ground loops.

Roadworthy Construction

Housed in a 14-gauge steel chassis, the MLI1 is built to withstand the abuse of the most demanding live tours. Its rigid outer shell protects all the MLI1 internal connections, switches and solder joints from failure, ensuring quiet, reliable performance.

Features

• Mono line isolation box eliminates hum and buzz caused by ground loops

• Samson STL transformer isolates input and output signals

• Flexible connectivity with 1/4" and XLR input and output connections

• Ruler flat frequency response from 10Hz–35kHz

• All-metal, impact resistant design

Frequency Response10Hz–35kHz (±0.2dB typical), up to 75kHz (-1dB) 

Dynamic Range>140dB 

Maximum Input+15dBu @ 41Hz for <1% THD+N 

Gain+0.2dB 

Rejection50/60Hz 126dB typical 

Equivalent Input Noise-115dBu 

Intermodulation Distortion0.003% 

Total Harmonic Distortion0.0006% 

Input Impedance7.7kΩ 

Output Impedance600Ω nominal 

Ground LiftDisconnects ground from input to output connectors. Case is always grounded to outputs. 

Input ConnectorsXLR-1/4" combo 

Output ConnectorsXLR, 1/4" TRS 

Chassis ConstructionPowder coated, 14-gauge steel 

Weight0.7lb (0.32kg) 

Dimensions4.25" (110mm) x 2.25" (54mm) x 1.75" (46mm)