Tandberg TPA 3003
Stereo Power Amplifier (1980)
The philosophy behind this product was to create a power amplifier using advanced technology and make a product with the utmost performance: small in size, but big enough in power to drive any high quality speaker system.
This amplifier is designed to reproduce very rapid signals, or even transients without any form of deterioration.
The cooling system developed for the TPA 3003 is shaped to give fast circulation of air to the output transistors. The high efficiency attained is also reflected in the low temperature achieved on external parts even when the amplifier is driven at high output power.
The TPA 3003 contains 5 different protection circuits. The main protection circuits are: Protection at speaker loads lower than 2 ohms, inclusive short-circuiting of speaker terminals, Speaker protection circuit, Protection of output and driver transistors against flashback from inductive speaker load.
To ensure that the amplifier always operates within its limits, two LEDs mounted on the front indicate when the output is overloaded or when a high input voltage causes the amplifier to operate above its power supply limits.
The mains transformer which is a toroidal type has very low height, high efficiency and very low stray magnetic field to prevent any radiation of hum or noise to other sensitive components or products.
The rectifier used in the power supply will handle 25A. It utilizes a special cooling fin and is designed to stand extreme loads. The filter capacitors in the power supply are 2 x 15,000uF and the total power system is able to supply any current needed to the amplifiers even when handling high power transient signals.
Power output: 150 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.02%
Damping factor: 200
Input sensitivity: 1V
Signal to noise ratio: 98dB
Dimensions: 435 x 350 x 83mm
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