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2-Channel Punch Amplifier
Punch 45.2
Specification
Reference
Sheet
• Gold-Plated RCA Input Jacks – Maintains signal quality by resisting
corrosion
• Input Sensitivity Control – Level control can be adjusted to match
output levels from a variety of source units
• Gold-Plated Power/Speaker Barrier Strip – Screw terminals
accept #10 spade lugs or bare wire sized from 10 to 18 AWG
• Crossover Switch – Crossover can be set for low-pass operation or full
range
• Bass EQ – The Bass EQ allows a narrow band adjustment of up to +18dB
centered at 45Hz. The bass boost can be bypassed by turning the control to
its minimum or counterclockwise position
• LED Power Indicator – Visual indicator illuminates when amplifier is
turned on
WARRANTY
• 3 Years
FEATURES
TECHNICAL FEATURES
• Trans•ana – Sound quality topology that sends an extended bandwidth
accurately to the output stages of the amplifier
• TOPAZ – Eliminates troublesome ground loop noise between the source
and amplifier
• NOMAD – Extremely fast protection system that always protects the
amplifier and never degrades the sound
• MOSFET Devices – Power supply and output devices that have high
thermal stability, fast switching speed, low output impedance, and wide
bandwidth linearity
• DSM (Discrete Surface Mount) Technology – Fewer
connections, improved reliability, shorter signal paths, superior signal-to-
noise ratio and awesome sonic performance
DESIGN FEATURES
• Diecast Heatsink – Dissipates heat generated by the amplifier’s
circuitry
SPECIFICATIONS
RMS Continuous Power @ 14.4V (Competition Standard)
Stereo into a 4Ω load (20Hz-20kHz, <0.05% THD) ......... 22.5x2
Stereo into a 2Ω load (20Hz-20kHz, <0.10% THD) ............ 45x2
Bridged into a 4Ω load (20Hz-20kHz, <0.10% THD) .......... 90x1
Dynamic Power @ 14.4V (IHF Standard)
Stereo into a 4Ω load (20Hz-20kHz, 1% THD) ................... 50x2
Stereo into a 2Ω load (20Hz-20kHz, 1% THD) ................... 85x2
Bridged into a 4Ω load (20Hz-20kHz, 1% THD) ............... 170x1
Signal-to-Noise Ratio ................................ >100dB (A-weighted)
Frequency Response .................................. 20Hz-20kHz ±0.5dB
Bandwidth .............................................. 10Hz-250kHz ±3.0dB
Damping Factor @ 4Ω ...................... >200 (at output connector)
Slew Rate ....................................................................30v/µs
IM Distortion (IHF) ..................................................... <0.05%
Input Impedance............................................................ 20kΩ
Factory Default Crossover............................ 80Hz low-pass fixed
Crossover Slope ................................... 12dB/octave Butterworth
Source Unit Compatibility (+15dB gain overlap) .......... 20V max.
Input Sensitivity (0dB gain overlap) .................... 200mV to 3.5V
Operating Voltage ........................................ +9V to +15.4V DC
External Battery Fuse ................................................ 20A (ATC)
Standby Current 700mA
Dimensions ...................................... 2
5
⁄8"H x 9
5
⁄8"W x 10
9
⁄32"L
(6.6cm x 24.4cm x 26.1cm)
Weight ........................................................ 5.7 lbs. (2.58kg)
®®
Specifications subject to change without notice
ACCESSORY PACK
(1) Punch Verification Certificate
(4) Amplifier Mounting Screws (#8 x 3/4” Phillips)
(1) 9/64” Allen Wrench
(4) 9/64” End Cap Mounting Screws
(1) ATC In-line Fuseholder
(1) ATC 20 Amp Fuse
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