S
PECIFICATIONS
P9505
Power Rating ..................................................................... 250 Watts/channel @ 8
Ω
375 Watts/channel @ 4
Ω
750 Watts bridged/mono @ 8
Ω
Total Harmonic Distortion (THD) ................................................ <0.2% (20Hz-20kHz)
Signal-to-Noise .......................................................................... 100dB “A” Weighted
Full Power Bandwidth .................................................... 0.15Hz to 300kHz (+0/–3dB)
Slew Rate ....................................................................................................... 150V/
µ
s
CMRR (Common Mode Rejection Ratio) .............................................. 75dB at 1kHz
Input Impedance ........................................................... 47k
Ω
per phase balanced
Gain ................................................................................................................. +29dB
Input Sensitivity Range ................................... 800mV (@ 8
Ω
) per phase balanced
690mV (@ 4
Ω
) per phase balanced
Damping Factor .................................................................................... 1000 (to 1kHz)
100 (to 10kHz)
20 (to 100kHz)
Power Consumption ........................................... 160W / 2.0A @ 120VAC (idle power)
370W / 4.2A @ 120VAC (1/8 power – 8
Ω
)
840W / 8.8A @ 120VAC (max. power – 8
Ω
)
Indicators ......................................................................................................... Power
Dimensions .................................................... 19”W x 12
1
⁄
2
”D* x 5
1
⁄
4
”H (3-rack spaces)
(48.3cm x 31.75cm x 13.3cm)
Net Weight ......................................................................................... 50 lbs. (22.7kg)
*plus 1” for handles
A
m
p
l
i
f
i
e
r
9505
®
A
RCHITECT
’
S
AND
E
NGINEER
’
S
S
PECIFICATIONS
The audio power amplifier shall be a fully balanced, discrete solid state
design employing JFET inputs and 16 lateral power MOSFET output devices. It
shall be constructed on a 16 gauge steel chassis utilizing convection air
cooling.
Each channel shall be rated for a minimum of 250 watts into an 8 ohm load and
375 watts into a 4 ohm load with both channels driven. In bridged mono mode,
the amplifier shall produce at least 750 watts into an 8 ohm load. A switch shall
be provided for stereo or bridged mono operation and all power ratings shall
be measured from 20Hz-20kHz with less than 0.2% THD.
The amplifier’s back panel shall provide a switch to select Unbalanced inputs
via gold-plated RCA jacks or Balanced inputs via combination XLR and 1/4”
phone jacks. The back shall also utilize gold-plated 5-way binding posts for
output connectors and a switch to isolate or connect the signal ground to the
chassis ground. The amplifier shall include a 3-wire grounded AC line cord
and a switch to operate the UI power transformer on 120V/60Hz AC mains. An
optional transformer for 230V 50-60Hz operation shall be available.
The amplifier’s front panel shall incorporate a lighted main power switch and
have rack handles. The amplifier shall fit standard 19” EIA rack mounting
requirements utilizing 3-rack spaces. The dimensions shall be 19” Wide, 12
1
⁄
2
”
Deep* (plus 1” for handles), 5
1
⁄
4
” High (excluding feet), and be finished in black
with a net weight of 50 pounds. It shall be a Hafler 9505.
*plus 1” for handles
CHANNEL 2
MONO OUTPUT: Use CH 1 Input Only.
CHANNEL 1
CH 2
120 VAC
60Hz
1800W MAX
Audio GND
Chass. Float
Phone Connections
CHANNEL 1
Mono
2 Ch
Unbal.
Bal.
A Division of Rockford Corp.
Tempe, AZ 85281 U.S.A.
Made in the U.S.A.
CH 1
(Mono)
+
–
CHANNEL 2
4-8
Ω
CHANNEL 1
4-8
Ω
PUSH
PUSH
XLR Connections
3
2
1
+
–
Mono
–
+
®
