User Guide

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Appendix B
Testing equipment list
Music Playback
The following equipment is used to test with AX4B-533 Tube as a preamp for testing and QA before
shipment:
Pre-amplifier for comparison
Audio Research LS-1
Audio Research LS-2
Audio Research LS-7
Audio Research LS-15
Audio Research LS-16
Golden Tube SEP-1
Sonic Frontiers SFL1-Signature
Power amplifier
Audio Research VT50
Audi Research VT100
Bryston 4BST
Jeff Rowland Model 1
PASS X150
USHER R0.8