Hafler XL-600 Owners Manual
OWNER'S MANUAL
XL-600 POWER AMPLIFIER
A Division of Rockford Corporation
613 South Rockford Drive
Tempe, Arizona 85281
-
967 - 3565
602
SPECIFICATIONS
POWER RATING: Less than 0.08% THD at any power
level up to 305 watts per channel into 8 ohms at any
frequency from 20
CONTINUOUS POWER OUTPUT: 450 watts per channel
into 4 ohms at less than 0.1% THD, 20 - 20 kHz. 900 watts
in mono into 8 ohms at less than 0.1% THD, 20 - 20
CONTINUOUS POWER AT CLIPPING: *
Into 8 ohms, per channel: 360 watts
Into 4 ohms, per channel: 500 watts
Into 2 ohms, per channel: 750 watts
Into 1 ohms, per channel: 900 watts
Into 8 ohms, per channel: 1000 watts
Into 4 ohms, per channel: 1500 watts
IM DISTORTION (SMPTE): Less than 0.04% from 1 watt
to 305 watts into 8 ohms.
FREQUENCY RESPONSE @ 1 WATT INTO 8 OHMS:
+/-
0.1 dB, 10 Hz to 50
dB,
+/- 3
POWER BANDWIDTH: Greater than 100 kHz
0.1 Hz to 500 kHz
-
20 kHz with both channels driven.
kHz
kHz.
PHASE SHIFT FROM 20
degree
SLEW RATE: 10
wave: 100
SIGNAL TO NOISE RATIO, UNWEIGHTED: More than
100 dB
INPUT: 47,000 ohms; 1.8 volts for 305 watts into 8 ohms
DAMPING FACTOR INTO 8 OHMS:
@
10 kHz
PHYSICAL: 7” high, 19” wide, and 13” deep, plus 1/2” for
feet, plus 2” for handles. Net weight 51 Ibs.; Shipping
weight 55 Ibs.
V/us
@
305 watts into 8 ohms
-
20
kHz:
Less than 1/4 of one
kHz,
130 volts peak-to-peak square
>
200 to 1
kHz;
150
*Continuous duty cycle across the audio band. Depending
on impedance, time may be thermally limited to several
minutes.
Congratulations on your purchase of this EXCELINEAR
POWER AMPLIFIER. We are confident that this amplifier
is capable of driving any known loudspeaker load,
sufficient power reserves to suit any home listening situation. Furthermore, its refined circuitry will deliver that power
with an accuracy that is sure to satisfy the most demanding
of audiophiles.
INSTALLATION
The gloss black insert on the faceplate of your new Hafler
Equipment has been packaged with a removable protective coating. Please peel off this coating following
tion.
When cleaning the faceplate, we advise a soft cotton cloth
with a non-abrasive cleaner that is safe for Lexan and
painted surfaces. DO NOT use paper towels or any coarse
materials to clean the faceplate as these materials may
scratch the insert.
with
installa-
Ventilation
Adequate air flow is important to the continuing reliability
of any power amplifier.
tinuously variable speed fan to cool the entire chassis
Cool air must circulate freely into the side vents and out
the rear vent. Allow at least one inch on each side, and at
least three inches to the rear for unimpeded flow.
The XL-600 uses a quiet, con-
AC Line Connections and Switching
NOTE: BE SURE YOUR AMPLIFIER IS WIRED FOR
YOUR LOCAL LINE (MAINS) VOLTAGE BEFORE CONNECTING AC POWER!
2
The XL-600 is normally wired for use on 120 Volt 60 Hz
power lines. If your line (mains) voltage is different, you
will require the optional export multi-voltage transformer,
which accommodates voltages from 100 to 240 VAC, at
50-60 Hz.
The XL-6003 power switch may be left ON, and the
amplifier switched remotely via a preamplifier or other
control center, provided that device has a switched AC
outlet capable of supplying 20 amperes for the amplifier,
in addition to the requirements of other units being
switched. Alternately, you may connectthe amplifier direct-
ly to a wall outlet, and use the front panel power switch
provided on the amplifier.
As a general rule, power amplifiers should be turned ON
LAST, and turned OFF FIRST, before other equipment, to
avoid switching transients that may be generated by prior
stages Hafler OH-100, OH-110, IRIS and SE-100
preamplifiers employ protective muting circuitry which obviate this concern.
Input Connections
Conventional shielded RCA type cables should be used
to connect the amplifier’s gold input jacks to the
preamplifier’s output, Gold connectors provide added assurance against signal degradation due to contact cor-
rosion. Regardless of cable or connector material, verify
that the contacts are clean, and that the plug’s outer shield
is tight on the jack, to avoid hum.
If you wish to install the XL-600 at some distance from the
preamp, the preamp’s output impedance and cable
capacitance determine the maximum cable length to avoid
high frequency losses. If, as with Hafler preamps, the
output impedance is 600 ohms or less, and the cable
(pF)
capacitance is 50 picofarads
to 50 feet of cable may be used. On long runs, keep the
left and right cables close together, and avoid running them
parallel to AC power wiring to minimize hum pick up.
or less per foot, then up
3
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