Hafler P225 P230 Owners Manual

Page 1

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PROFESSIONAL
POWER AMPLIFIER

All references In this manual
to the P-225 also apply to the
R230. The P-230 is ldenllcal
except that it has addllional
output MOSFETs and larger
power supply fuses

P225 / P230

INSTRUCTIONS
for ASSEMBLY
and OPERATION

IF THE SPEAKER FUSES BLOW,
SOME DISTORTED SOUND CAN BE
HEARD. THEREFORE IF AMPLIFIER
MALFUNCTIONS, ALWAYS CHECK
FOR BLOWN FUSES FIRST. LM 144

$3.00

THE DAVID HAFLER COMPANY
5910 Crescent Boulevard. Pennsauken, New Jersey 08109

number in all communications

Y

Please roIer lo Ibis vial

regarding (his equipment

Page 2

SPECIFICATIONS

Power Rating: 115 watts per channel into 8 ohms at less than 0.02% THD from 20 Hz to
20 kHz with both channels driveni

175 watts per channel into 4 ohms at less than 0.04% THD from 20 Hz to
20 kHz with both channels driven.

350 watts into 8 ohms at less than 0.04% THD from 20 Hz to 20 kHz in
monophonic bridged operation.

230 watts into 16 ohms at less than 0.02% THD from 20 Hz to 20 kHz in
monophonic bridged operation.

IM Distortion (SMPTE): Less than 0.005% from 1 watt to 115 watts, each channel, into 8
ohms.

Typical THD at 115 watts intos ohms: 1 kHz: 0.002%
10 kHz: 0.007%
20 kHz: 0.014%

Frequency Response into 8 ohms: -3 dB, 2 Hz to 160 kHz at 1 watt.
+0, -0,5 dB, 6 Hz to 60 kHz at 115 watts.

Typical Channel Separation: 20 Hz: > 75 dB
1 kHz: > 85 dB
20 kHz: > 65 dB

Signal to Noise Ratio, unweighted: Exceeds 100 dB referred to 115 watts into 8 ohms.
Input Impedance: 47 ,000 ohms, in parallel with 50K ohms input level control.
Input Sensitivity: L55 volts ms for 115 watts into 8 ohms

Damping Factor: 300 to 1 kHz into 8 ohms
60 to 10 kHz into 8 ohms

Rise Time: 10 kHz, 60 volts p/p square wave, 10% to 90%: 2.5,;5.
Slew Rate: 10 kHz, 60 volts p/p square wave: 30V/,us.

Semiconductor Complement: 26 transistors, 8 power MOSFETs, 29 diodes, 4 zener diodes,
1 diode bridge.

Power Consumption: 125 VA quiescent; 580 VA @ rated power into 8 ohms, both channels
driven.

Size: 5-1/4" high plus 1/4 feet, [9" wide, 10-1/2" deep plus 1-1/4 for handles.
Net Weight: 28 lbs.
Shipping Weight: 32 lbs.

CAUTION: For continued protection, replace the power fuse only with the same type and rating
as indicated.

WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS EQUIPMENT
TO RAIN OR MOISTURE.

Copyright 1986. The David Hafler Company. All rights reserved.