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Toa Electronics IP-450D - Dual-Channel Power Amplifier (450W Per Channel at 4 Ohms)

B&H # TOIP450D Mfr # IP-450D
No Longer Available

The TOA IP-450D is a robust and versatile 2-channel power amplifier designed for professional sound systems in stadiums, hotel ballrooms, and other similar venues. It offers an output power of 450W into 4 ohms. This compact and fairly lightweight amplifier uses highly reliable circuitry for professional-quality sound. It offers 1/4" and screw terminal inputs and screw terminal output connectors.

The IP-450D is notable for it's remarkably quiet operation, with an unusually low noise floor. The amp features 3 modes of operation (stereo, parallel, and bridged-mono), recessed and detented input level control knobs, advanced protection circuitry with dedicated LED indicators, removable front panel dust filters for simplified maintenance, and detachable carrying handles for easy rack installation and removal. Optional output transformers are available for high-impedance applications.

2U rackmount power amplifier with 450W into 4 ohms
Ultra-quiet operation with low noise floor
Electronically balanced screw-terminal and 1/4" TRS phone input connectors
Large, dual screw-terminal barrier strip accepts two sets of #10 AWG speaker cable conductors for each output channel
Switch-selectable stereo, bridged-mono and parallel operating modes
Optional constant voltage transformers available for commercial distributed speaker systems, 25/70.7 V per channel operation
High-quality stepped, recessed attenuators for precise input gain adjustments, with included security covers to prevent accidental settings changes
Advanced protection circuitry minimizes potential damage from overloads, short circuits, DC offset and overheating
LED indicators for signal, peak, protect, and attenuator bypass
In-rush current limiter prevents AC overload during system turn-on of multiple amplifiers
Variable-speed cooling fan
Removable front-panel dust filters for easy maintenance
Detachable front handles for easy rack installation and removal
Output Power 450W @ 4Ω Stereo (per channel)
300W @ 8Ω Stereo (per channel)
900W @ 4Ω Bridged-Mono
Damping Factor Not Specified by Manufacturer
Input Sensitivity +4dB (1.23V) +/-0.5dB
Input Impedance 10 kΩ, Electronically Balanced
Gain 32 dB
Frequency Response 20 Hz - 20 kHz(+0 dB, -0.5 dB)
Signal-to-Noise Ratio 110dB @ 26dB Gain
105dB @ 32dB Max. Gain
Total Harmonic Distortion (THD) 0.01% (8 Ω, 1kHz)
0.1% (8 Ω, 20Hz - 20kHz)
Input Connections 2 x 1/4" TRS Phone (Balanced)
2 x Screw Terminal Barrier Strips (Balanced)
Output Connectors 1 x Ch1/Ch2 Solderless Screw Terminal
Controls Front Panel 2 x Rotary Attenuator Controls
1 x Power Switch
Controls (Rear) 2 x On/Off VR Control Switches
1 x 3-way Stereo/Parallel/Bridged-Mono Mode Switch
Indicators 1 x Green Power LED
2 x Green Signal LEDs
2 x Red Peak LEDs
2 x Red Protect LEDs
2 x Yellow VR Bypass LEDs
Cooling Variable Speed, Fan-Cooled, Forced Air
Power Consumption 648VA
Power Requirements 120VAC ±10%, 60 Hz
Dimensions (WxHxD) 19 x 4 x 18.7" (483 x 102 x 474 mm)
Weight 28.7 lbs (13 kg)
Specialties Detachable Front Handles
Advanced Protection Circuitry
Stereo, Bridged, and Parallel Operation
Removable Front-Panel Filters
Toa Electronics IP-450D - Dual-Channel Power Amplifier (450W Per Channel at 4 Ohms)
  • 4 x Screws
  • 4 x Removable Rubber Feet
  • 2 x Attenuator Security Covers
  • Power Cord
  • Owner's Manual
  • 5 Year Limited Warranty
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