Signal Processing Systems : Audio Transformers : Radio Design Labs - EZ-HK1

Stereo Audio Hum Killer

Series:

Model: EZ-HK1

Audio Ground-Loop Hum Elimination
Unbalanced Stereo Galvanic Isolation
Inputs and Outputs on RCA and Mini Jacks
Switch-Selectable Ground Lift for Output Jacks
Portable Use or Permanent Installation

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The EZ-HK1 is a superior-quality stereo audio transformer isolation module for use with unbalanced, high impedance audio inputs. Input and output connections are provided on gold-plated RCA jacks.The shield connection of each INPUT jack is electrically isolated from the case and from the output ground. The shield connection of each OUTPUT jack is connected to the case shield through a rear-panel ground-lift switch.The EZ-HK1 eliminates hum due to ground loops when it is installed between an unbalanced audio source, such as a computer, CD player, cassette player or other consumer audio product, and the input of a grounded amplifier in an audio system.

Audio Ground-Loop Hum Elimination
Unbalanced Stereo Galvanic Isolation
Inputs and Outputs on RCA and Mini Jacks
Switch-Selectable Ground Lift for Output Jacks
Portable Use or Permanent Installation
Gold-Plated RCA Connectors
Conversion between Mini-jack and RCA formats
Ground-Lift Switch

Audio Transformer Type - Isolation Transformer
Audio Transformer Input - RCA
Audio Transformer Output - RCA

Inputs (2):: Stereo on RCA Phono jacks, Stereo Mini-jack, -10 dBV nominal, ground-isolated
Input Impedance:: 10 kΩ Outputs (2):
Stereo on RCA Phono jacks, Stereo Mini-jack, -10 dBV nominal:
Output Impedance:: 10 kΩ
Output Ground Isolation:: Switch-selectable
Gain:: Unity nominal (passive circuit)
Frequency Response:: 20 Hz to 20 kHz (+/- 1 dB)
Total Harmonic Distortion:: <0.05% (1 kHz)
Crosstalk:: <-75 dB (20 Hz to 10 kHz), <-65 dB (10 kHz to 20 kHz)
Case dimensions:: 2.9" (7.4 cm)W x 3" (7.6 cm)D
Mounting size:: 1/6 rack width
Maximum Frequency Response (Bandwidth): 20 kHz
Maximum Frequency Response (Bandwidth): 20000 Hz
Minimum Frequency Response (Bandwidth): 20 Hz
Minimum Frequency Response (Bandwidth): 0.02 kHz
Total Harmonic Distortion + Noise (THD+N): 0.05 %
Depth: 76.20 mm
Width: 73.66 mm
Shipping Weight: 0.18 kg

Installation and Operation Manual 1021 kb - Instructions

Project List

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