Contents
Getting started 6
Controls and Connectors 6
Package Contents 7
Power Supply 7
Powering Procedures 8
Power Supply 8
Battery 8
Using Simultaneous Battery and External Power Supply 9
Hardware Setup: Standalone Mode 10
Hardware Setup: C.A.S.T. 11
Feature Overview 12
Headphones Level Control [1] 12
Headphones Output [2] 12
Outputs [3] 13
Inputs [4] 14
Width Switch [5] 15
Source Switch [6] 15
C.A.S.T. 15
INPUTS 15
Battery Low Indicator [7] 16
Power Indicator [8] 16
Power Mode Switch [10] 17
Low Power Mode 17
High Power Mode 17
Changing Power Modes 17
C.A.S.T 19
Cable Requirements 19
C.A.S.T. Wiring 20
C.A.S.T. Warnings 21
Using C.A.S.T. with 48v Phantom Power 22
Application Guides 24
Standalone Reference-Grade Headphone Amplifier 24
Using N22H with Camden EC2 26
Remote Monitoring With N22H and N22 28
Daisy Chaining N22H 29
Real-World N22H Battery Life Tests 30
Audio Technica ATH-M50x (38Ω) 30
Shure SE215 (17Ω) 30
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