It'll put you on the receiving end of a lot more than compliments.
Even before you switch on the STR-7800SD receiver, it'll be receiving. Receiving oohs and aahs.
After it goes on, the accolades will really come in.
After all, it is the f nest receiver ever designed by Sony. The 7800 puts you on the receiving end of the most tomorrow-looking technology available today.
You'll receive a feeling of power.
The 7800 brings power to the power-hungry, and can even make the mild-mannered lust for power. Rated at 125 watts per channel, it's powerful enough to drive any speakers-satisfy any need.
The 125 watts, minimum RMS at 8 ohms, is from 20 to 20kHz with no more than 0.07% Total Harmonic Distortion.
And that's Sony's conservative rating.
How this combination of power and low distortion was achieved, is an example of Sony's engineering muscle.
Let's start with the toroidal coil transformer. A more efficient structure, it fully exploits the high-performance power amp. As do two over-sized capacitors, each 22,000uF.
So the feeling of power through out the frequency range is unmistakable.
You'll receive tuning that'll leave you swooning.
FM circuitry found usually in separates appears in the 7800.
Pardon our initials, but MOS-FET's are used in the FM RF amplification. The result: good linearity, low noise and high sensitivity.
For you FM Dolby listeners, a complete FM Dolby noise reduction system, to minimize noise and over-load distortion.
And there's a new local oscillator circuit. Plus our uni-phase IF filters are so advanced, a computer de signed them.
A Multipath switch and meter indicate optimum antenna orientation, thereby reducing distortion. An LED dial pointer doubles in length when an FM signal is received for easy tuning.
You'll receive a pre-amp that's pre-eminent.
High marks for our low emitter concentration (LEC) transistor. De signed, made by, and exclusive to Sony. It guarantees low noise, and a wide dynamic range. It also keeps RIAA equalization to with n +-0.5dB.
You'll receive power. And the means to control it.
The pre-amp section also gives you the control you need to keep all that power in line.
A presence switch is a special present: it lets you equalize the mid-range.
Importantly, the 7800 was built with a professional Attenuator Main Volume Control. It eliminates gang, error between channels.
Nor have we overlooked a special loudness network, or an audio muting switch.
Some input on the inputs: Phono 1, Phone 2. External Adaptor, Auxiliary, two tape decks-and tape-to-tape dubbing facilities.
Certain pieces of machinery simply ooze quality and power. Such is true of the 7800SD. It'll put you on the receiving end of the living end.
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(High Fidelity, Oct. 1977)
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