THE PL 570. UNDER 400.
The average quartz phase locked loop turntable plays records virtually perfectly, has no audible wow or flutter, is unaffected by voltage changes, and manages to accomplish all this for slightly under $800.
The new PL 570, on the other hand, has all the same features, but with one distinct advantage: it costs less than $400.* Which, you have to admit, is an awfully small price to pay for perfection.
------------The heart of the PL-570 a quartz crystal
MORE ACCURATE THAN A QUARTZ WATCH.
In brief, the PL 570 works by using a quartz crystal that oscillates 180 million times a minute as a timing mechanism. The speed of our direct-drive platter motor is then "locked" onto that rate of oscillation-and constantly adjusted to account-or things like heat, line voltage variations, aid even the weight of the record on the planer.
The benefit of all this is simple: the PL 57C can run virtually forever with no variation in speed. In tact, it's so accurate, special measurements are needed to fully describe it. Something called "time drift" is a mere 0.0003%. A figure unsurpassed by the finest quartz watch that gains or loses up to ten seconds a month. And "thermal drift" is 0.00004%. Which means that while we can't guarantee just how well the PL 570 will play in your freezer, normal room and operating temperature variations shouldn't affect it at all.
In more mundane measurements, wow and flutter is 0.025%. Four times under what the human ear can rear. And even with the quartz phase locked loop off, the turntable speed is unaffected with stylus pressure of up to 120 grams. Which, by no small coincidence, is about 119 grams more than you'll ever apply.
FOR THIS KIND OF MONEY YOU SHOULDN'T HAVE TO LIFT THE TONE ARM.
Unlike any other quartz phase locked loop turntable, the PL 570 is automatic. So you're spared the burden of lifting our tonearm. But this isn't your average tone arm return system. Or your average tonearm, for that matter.
Where most automatic turntables use one motor for both the planer and tonearm, the PL 570 has a separate motor for each.
Which means that the action of the tonearm motor never interferes wit' the accuracy of the platter motor. And where most tone arms sense when to return by using cams and gears that lessen sensitivity and cause vibration, the PL 570 uses a light emitting diode that does neither.
Then there's the tonearm itself. It's fully adjustable. You can even set the vertical tracking angle of your cartridge with a height adjustment lever. And the whole unit is mounted in a 1 inch aluminum frame that not only looks nice, but helps your records sound nice by removing unwanted resonance.
OTHER FEATURES NOT USUALLY FOUND ON “BARGAIN” TURNTABLES.
When we set out to build the PL 570, we wanted it to be a lower cost quartz phase locked loop turntable. Not lower quality.
So like the quartz turntables that sell for hundreds of dollars more, the PL-570 features an electric strobe circuit that eliminates normal voltage frequency variations so you can adjust the PL-570 perfectly. Plus a "quick down" circuit that lets you go from 45 to 33 1/3 almost instantly. And one piece monocoque construction that cuts howling caused by vibration.
At Pioneer, we've become number one today with people who care about music simply because we've always managed to take state of the art technology, aid offer it with some consideration of the sate of your wallet.
If the PL 570 is any indication, it looks like were getting better at it all the time.
PIONEER loop turntable, the PL 570 is automatic.
WE BRING IT BACK ALIVE--1977
Pioneer Electronics, New Jersey 07074 USA.
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(High Fidelity, Oct. 1977)
Also see:
JVC turntables (ad, Apr. 1977)
Empire 698 turntable (Equip. Profile, Apr. 1977)
Empire 698 turntable (ad, Apr. 1977)
Sony 7800 Receiver (ad, Oct. 1977)
ADC--Accutrac turntable (ad, Apr. 1977)