Sterling S418HA Headphone Amp

Sterling S408HA Overview

On professional stages or in-studio, the Sterling S418HA headphone amp provides up to eight musicians an ultra-low noise, high-powered solution for precision monitoring.

Features eight discrete stereo headphone amplifiers and eight direct inputs for individual monitor mixes, ensuring the best possible mix tailored to each user so they can perform their best.

The S418HA rack-mountable design will work into your existing system easily, and its low-noise toroidal transformer provides superior output power and headroom. Plus, its cascading feature via parallel balanced ¼” outputs allow you to add additional S418HAs, making it easy for you to scale up your system as needed. Gold-plated inputs and outputs and a sturdy steel chassis guarantee optimal operation for years into the future.

 
Sterling 408HA Headphone Amp Features

• 8-channel rackmount headphone amp
• 8 discrete stereo amplifiers
• 2 stereo main inputs allow for simultaneous two-input mix balance across all inputs
• 8 stereo direct inputs for individual, discrete monitor mixes
• Single rackspace for easy integration into existing rack rigs
• Output level control and clip LED per channel

• Mono/stereo engage switch for mono/stereo operation
• 15V toroidal transformer for ultra-low noise operation
• Parallel main outputs for cascading multiple S418HAs
• Rugged steel chassis provides outstanding protection for years
• Elegant faceplate with backlighting for easy operation in low light environments

Sterling S418HA Overview

On professional stages or in-studio, the Sterling S418HA headphone amp provides up to eight musicians an ultra-low noise, high-powered solution for precision monitoring.

Features eight discrete stereo headphone amplifiers and eight direct inputs for individual monitor mixes, ensuring the best possible mix tailored to each user so they can perform their best.

The S418HA rack-mountable design will work into your existing system easily, and its low-noise toroidal transformer provides superior output power and headroom. Plus, its cascading feature via parallel balanced ¼” outputs allow you to add additional S418HAs, making it easy for you to scale up your system as needed. Gold-plated inputs and outputs and a sturdy steel chassis guarantee optimal operation for years into the future.

Sterling S418HA Headphone Amp Features

• 8-channel rackmount headphone amp
• 8 discrete stereo amplifiers
• 2 stereo main inputs allow for simultaneous two-input mix balance across all inputs
• 8 stereo direct inputs for individual, discrete monitor mixes
• Single rackspace for easy integration into existing rack rigs
• Output level control and clip LED per channel
• Mono/stereo engage switch for mono/stereo operation
• 15V toroidal transformer for ultra-low noise operation
• Parallel main outputs for cascading multiple S418HAs
• Rugged steel chassis provides outstanding protection for years
• Elegant faceplate with backlighting for easy operation in low light environments

Sterling S418HA Specifications

AUDIO INPUTS
MAIN IN: HF-filtered, servo-balanced 1/4″ TRS
Input Impedance: 40 kΩ Balanced
Max Input Level: +16 dBu Balanced
CMRR: 42dB @ 1kHZ
DIRECT IN: 1/4″ TRS Connector (stereo)
Input Impedance: 100 kΩ
PHONES OUTPUTS: 1/4″ TRS Connector (stereo)
MAIN OUT: XLR connectors

POWER AMPLIFIER
Max. output power: 24 dBm (load impedance 100Ω)
Min. output load impedance:

 

 
SYSTEM SPECIFICATIONS
Frequency Response: 10 Hz to 80 kHz, +/-2 dB
SNR: 22 Hz to 22 kHz>90 dB@0 dBu
Dynamic Range: 22 Hz to 22 kHz: 100 dB
Distortion (THD): 0.004% typ.@+4 dBu, 1 kHz Gain 1

FUNCTION CONTROLS
Input Level: variable
Output Level per channel: variable

FUNCTION SWITCHES
Main in 1 / Main in 2: Switches between Main Input 1 and Main Input 2
Mono: Switches this section to mono

DIMENSIONS AND WEIGHT
Dimensions: 1.75″ x 19″ x 8.66″
Weight: 9.1 lbs.

Sterling S418HA Specifications

AUDIO INPUTS
MAIN IN: HF-filtered, servo-balanced 1/4″ TRS
Input Impedance: 40 kΩ Balanced
Max Input Level: +16 dBu Balanced
CMRR: 42dB @ 1kHZ
DIRECT IN: 1/4″ TRS Connector (stereo)
Input Impedance: 100 kΩ
PHONES OUTPUTS: 1/4″ TRS Connector (stereo)
MAIN OUT: XLR connectors

POWER AMPLIFIER
Max. output power: 24 dBm (load impedance 100Ω)
Min. output load impedance:

SYSTEM SPECIFICATIONS
Frequency Response: 10 Hz to 80 kHz, +/-2 dB
SNR: 22 Hz to 22 kHz>90 dB@0 dBu
Dynamic Range: 22 Hz to 22 kHz: 100 dB
Distortion (THD): 0.004% typ.@+4 dBu, 1 kHz Gain 1

FUNCTION CONTROLS
Input Level: variable
Output Level per channel: variable

FUNCTION SWITCHES
Main in 1 / Main in 2: Switches between Main Input 1 and Main Input 2
Mono: Switches this section to mono

DIMENSIONS AND WEIGHT
Dimensions: 1.75″ x 19″ x 8.66″
Weight: 9.1 lbs.

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