For a similar power output the Superscope has a much larger power supply, with a bigger transformer and a pair of 10,000uf filter caps which I replaced with new 15,000uf Panasonics. The Technics on the other hand has a comparatively wimpy power transformer and a pair of 6800uf caps. While I am a fan of higher end Technics gear, the BOTL stuff is better than some but easily bettered.
No disrespect to you, but for anyone who uses this as an indication of build quality, you are incorrect and malinformed. I'm an electrical engineering student, and spent an entire semester on power supplies and another entire semester on amplifiers. From my experience, my colleagues, and the professor of 30 years, the optimal capacitance is roughly 2600uF per amp drawn. The reason for this is, is the voltage waveform isn't very much flattened by any more than this, and I have a lab report to prove it. Anyway, the reason for the capacitors in the power supply is used to decrease the peak to peak ripple on the load side of the power supply's transformer. There is actually a formula used to determine what the peak to peak ripple shall be based on the capacitance, block time, current drawn, and frequency. HOWEVER, the capacitor can only do such much, due to the amount of time it takes to charge, so we must use regulatory circuits such as zener-biased power transistors to get the waveform as flat as possible. The amount of current drawn by the output transistors, the biggest user of current in a receiver or amplifier is determined by the efficiency of an amplifier which is dependent of the hFE (forward current gain) of the transistors, supply voltages, heatsink characteristics (which requires knowledge of thermodynamics, not fun) and the biasing of the transistors. So ergo, the size of the capacitors in a power supply should not be indicative of build quality, although it doesn't hurt to have a little extra capacitance.
One other thing for those who are curious, the level at which a class AB amplifier (which most receivers are) is least efficient is determined by its figure of merit, which happens to be approximately 5 in that particular configuration. In other words, the amplifier will throw off the greatest amount of heat when the peak to peak output voltage is 1/5th of the maximum peak to peak voltage swing.
/Engineering Jargon.
How was that Echowars? I've come a long way in the last 4 years, eh?