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P-4500 Stereo Power Amplifier
$999,999,999,999
Description
Specification
Installation
Returns
Description
Accuphase
P-4500 Stereo Power Amplifier
The quest for the optimal power amplifier has just taken another giant leap forward. The P-4500 features an instrumentation amplifier configuration realized with discrete semiconductors in the signal path, triple Darlington 4-parallel complementary push-pull architecture and many other technology advantages. The result is an impressive S/N ratio of 121 dB, rated output of 500 watts into 1 ohm (music signals), and a damping factor of 700. A newly developed output protection circuit can also detect any short-circuiting of the speaker terminals, for complete peace of mind. This power amplifier is the ultimate tool for immersive music enjoyment on the highest level.
Power amplification stage with 4-parallel complementary push-pull configuration
Linear output characteristics (90 W / 8 ohms, 180 W / 4 ohms, 360 W / 2 ohms)
500 W output into ultra-low impedance load of 1 ohm (music signals)
Instrumentation amplifier principle
Current feedback topology
Balanced Remote Sensing
High damping factor of 700
Speaker output protection with short-circuit detection
* With music signals only, 1-ohm loads are permissible for stereo operation and 2-ohm loads for monophonic operation.
Damping factor
700
Input Sensitivity ( with 8-ohm load)
Stereo Operation
1.07V for rated continuous average output
0.11V for 1 watt output
Monophonic Operation
2.14V for rated continuous average output
0.11V for 1 watt output
Input Impedance
Balanced: 40 Kilohms
Line (unbalanced): 20 Kilohms
Signal-to-Noise Ratio
(A-weighted, with input shorted)
121dB (GAIN selector in MAX position)
126dB (Gain selector in -12dB position)
At rated continuous average output
Output Level Meter
Logarithmic scale, with indication off switch and -infinite to +3dB (indication in dB and %)
Hold time switchable 3s / infinite
*during monophonic operation, both meters show the same value
Power Requirements
120/220/230 V AC, 50/60 Hz (Voltage as indicated on rear panel)
Power Consumption
62 watts idle
485 watts in accordance with IEC 60065
Maximum Dimensions
Width: 465mm (18.31")
Height: 190mm (7.48")
Depth: 427mm (16.81")
Mass
29.2kg (64.4lbs) net
55.0kg (77.2lbs) in shipping carton
Installation
Sometimes we want to listen to our brand new audio setup without having to worry about dragging B&W up two flights of stairs - that's where we come in! Not only are our team experts in high quality AV equipment, they're also professional bodybuilders* who can deliver and install your new toys quickly and efficiently.
*the term 'professional bodybuilders' is used here loosely...
Returns
Our refund policy operates in a 30-day window - after this time we are unable to accept the product and cannot issue a refund. Don't worry, our products are hand picked from thousands of luxury brands to ensure you are only offered the best of the best so we doubt you'll need to consider this policy at all. If you are concerned about making the wrong decision when it comes to your purchase, please feel free to talk with our team of experts who can advise you on equipment based on your personal music taste, aesthetics, and the layout of your listening room. Still not convinced? Discuss the possibility of a loan (trial period) with our experts and hear the difference yourself.
