Yamaha 150 - Manual (Page 2)

2
Introduction
Thank you for purchasing a Yamaha XH150 power amplifier.
The development of the XH150 was enriched by Yamaha’s wealth of experience in building
PA equipment and its tradition of precision circuit design technology. This amp is dedicated
to driving high-impedance speakers, and feature high power and superb quality together with
superior reliability and stability, guaranteeing the highest possible audio performance.
Main features of the XH150:
• The unit is equipped with two types of inputs (balanced XLR and barrier strip) and one
barrier strip output.
• The voltage line is switchable between 100 V and 70 V, and output is rated at 150 W.
The high-impedance design makes the unit most suitable for driving multiple speaker
systems simultaneously in a facility.
• Independent low-cut/high-cut filters are provided for channels A and B. These filters
allow you to change cut-off frequencies.
• A SIGNAL indicator and CLIP indicator is provided for each channel.
• The PROTECTION indicator shows the status of protective circuitry such as power-on/
off protection, output muting, and the DC detection circuit.
• Variable-speed low-noise fan(s) ensures high reliability even under demanding condi-
tions.
In order to take full advantage of your XH150 and enjoy long and trouble-free operation,
please read this owner’s manual carefully before use.
WARNING: THIS APPARATUS MUST BE EARTHED
IMPORTANT
THE WIRES IN THIS MAINS LEAD ARE COLOURED IN
ACCORDANCE WITH THE FOLLOWING CODE:
GREEN-AND-YELLOW : EARTH
BLUE : NEUTRAL
BROWN : LIVE
As the colours of the wires in the mains lead of this apparatus may
not correspond with the coloured markings identifying the terminals in
your plug, proceed as follows:
The wire which is coloured GREEN and YELLOW must be
connected to the terminal in the plug which is marked by the letter E
or by the safety earth symbol or coloured GREEN and YELLOW.
The wire which is coloured BLUE must be connected to the terminal
which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the
terminal which is marked with the letter L or coloured RED.
* This applies only to products distributed by YAMAHA KEMBLE
MUSIC (U.K.) LTD.