Hafler TRANSNOVA P1500 User manual

Amplifier
P1500
CIRCUITRY
• trans• nova Amplifier Topology
• MOSFET Output Devices
• Electronic Fuse
• No Fan! Convection Cooled
CONTROLS & INDICATORS
• 3.5” Rack Mount (2-rack spaces)
• Stereo/Bridged Mono
• XLR or 1/4” Balanced Inputs
• Gold-Plated 5-Way Binding Posts
• Power Lamp, Signal, Clip, Thermal, Short LEDs
• 1dB Incremental Gain Controls
• Chassis/Float Ground Switch
• Serviceable Modules
WARRANTY
• 5 Year Warranty
FEATURES
®
DESCRIPTION
The trans•nova P1500 from Hafler! A company rich with heritage and experi-
ence. Building only the finest audio power amplifiers for professionals and
audiophiles the world over since 1975. The P1500
trans•novaisperfectformanystudiomonitoring
touring sound and fixed installations. Featuring
Professor James Strickland’s radical trans•nova
topology (TRANSconductance NOdal Voltage
Amplifier). This circuitry (patent #4467288) was
first introduced in our 9500 and promptly blew away expen-
siveesotericampstakingaudiotechnologyup to a whole new level in perfor-
mance.
New LED indicators allow visually monitoring the operating status of each
channel. The Thermal and Short indicators light when these protection cir-
cuits have been activated. The Clip indicator assists in protecting the speak-
ers by showing when the amp is overdriven and the output signal is distorted.
The Signal indicator lights to show the presence of an audio signal.
short
thermal
clipping
signal
channel 1
–15
–1
0dB
–10
–6 –3
channel 2
–15
–1
0dB
–10
–6 –3
nova
nova
trans
P1500
signal
clipping
thermal
short
MADE
USA
IN THE

SPECIFICATIONS
P1500
Power Rating....................................................................... 75 Watts/channel @ 8Ω
85 Watts/channel @ 4Ω
170 Watts bridged/mono @ 8Ω
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 ....................................................................................................... 100V/µs
CMRR (Common Mode Rejection Ratio).............................................. 75dB at 1kHz
Input Impedance ........................................................... 47kΩper phase balanced
Gain ................................................................................... +14dB min. / +29dB max.
Input Sensitivity Range ...................... 437mV to 2.4V (@ 8Ω) per phase balanced
330mV to 1.8V (@ 4Ω) per phase balanced
Damping Factor.....................................................................................350 (to 1kHz)
150 (to 10kHz)
18 (to 100kHz)
Power Consumption.........................................60W / 500mA @ 120VAC (idle power)
230W / 1.9A @ 120VAC (1/8 power – 8Ω)
325W / 2.70A @ 120VAC (max. power – 8Ω)
Indicators .................................................. Power, Signal, Clipping, Thermal, Short
Dimensions...................................................... 19”W x 81⁄2”D x 31⁄2”H (2-rack spaces)
(48.26cm x 12.59cm x 8.89cm)
Net Weight....................................................................................... 21.6 lbs. (9.98kg)
Amplifier
P1500
®
ARCHITECT’SAND ENGINEER’SSPECIFICATIONS
The audio power amplifier shall be solid state design employing 4 lateral
power MOSFET output devices. It shall be constructed on a 16 gauge steel
chassisutilizingconvectioncoolingandbetechnicianfriendlyusingmodular
construction.
Eachchannelshallbe ratedforaminimumof75watts intoan8ohmloadand
85 watts into a 4 ohm load with both channels driven. In bridged mono mode,
theamplifiershallproduceatleast170wattsintoan8ohmload.Aswitchshall
beprovidedforstereoorbridgedmonooperationandallpowerratingsshall
be measured from 20Hz-20kHz with less than 0.2% THD.
Theamplifier’sbackpanelshallprovideBalancedinputsviacombinationXLR
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 UI power transformer operating on 120V/60Hz AC mains. An
optional transformer for 230V 50-60Hz operation shall be available.
The amplifier’s front panel shall provide level controls with optional security
covers. The front shall also incorporate a lighted main power switch and
indicators for each amplifier channel. The indicators shall display signal
presentwhen 30mVofsignal isdetected,signalclipping whendistortionrises
above1%,thermalprotectionshouldtheheatsinktemperaturebecomeexces-
sive, and short circuit protection in case a problem on the speaker system
arises.
Theamplifiershallfitstandard 19” EIA rack mounting requirements utilizing 2-
rack spaces. The dimensions shall be 19” Wide, 81⁄2” Deep, 31⁄2” High, and be
finished in black with a net weight of 21.6 pounds. It shall be a Hafler P1500.
• Use CH 1 Input ONLY
• Set CH 2 Gain to Max
• Set Output Level with
CH 1 Gain Control
A Division of Rockford Corp.
Tempe, AZ 85281 U.S.A.
Made in the U.S.A.
XLR Connections
3
21
+
–
Phone Connections
+
–
®
115V ~
60Hz
CH 1 (Mono)
CH 1
– +
4-8Ω
CH 2
– +
– +
Mono
P1500
250 V T4A
CAUTION: For continued
protection from risk of
fire, replace only with
same type and
rating of fuse.
CH 2
Audio Ground
Chass. Float Mono 2-Ch
Mono Output:
8Ω4-8Ω
WARNING: DO NOT REMOVE COVER
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK
DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
!
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
PUSH
PUSH
UL
®
UL
®
C