Columbia, Missouri October 1977 "Successor to UM) Est. Figure 2 shows the identical conditions with the Disctraker damping system on the tonearm. 2 Figure 1 shows the amplitude of low frequency resonance in a typical tonearm/cartridge system using a "flat" record. reduces distortion caused by high velocity groove overload, mistracking and intermodulation. reduces record wear and stylus damage from warps. 2 permits accurate tracking of even badly warped records. reduces record -warp resonance-as witnessed by a dramatic reduction of woofer - flutter. reduces low frequency resonance that colors the sound of even the best tonearm/cartridge systems on all records. 49 on Reader Service CardĦ DiscTraker il DiscTraker -a revolutionary tonearm damper from Discwasher Disctraker is a precision damping device that improves the performance of tonearm/ cartridge systems by adding a protective cushion between the record and the tracking stylus. Pioneer Electronics, 85 Oxford Drive, Moonachie, New Jersey Enter No. And weigh your High Fidelity Components decision carefully. So before you run out and buy just any high powered receiver, consider all the time and engineering that went into the SX1250. Given all this, it should come as no surprise that the SX1250 even weighs more than most of our competitors' high-powered offerings. They're calibrated in 2 decibel click stops which give you a total of 3,024 ways to make the most out of your music. Two for regular treble and bass, and two for extended treble and bass. And where some high powered receivers give you two or three tone controls, the SX1250 gives you four. A figure that competes favorably with even the costliest separate pre -amps. It was also designed to follow the RIAA curve (the recording standardof the record industry), to within 0.2 decibels. Which means that no magnetic cartridge in the world can make it distort. Our pre -amp circuit was designed with an unheard-of phono overload level of 500 millivolts. Massive heat sinks to keep the heat off delicate electronics. Simply because electrical fans car cause noise and vibration. (In the Technics SA 5760, by comparison, the heat sinks are located right in the middle of the receiver.) And where many manufacturers choose to solve the heat problem with fans, we choose not to. They're massive, and located around the outside of the 1250 to dissipate heat away from the innards, instead of into them. This same kind of thinking even went into things like our heat sinks. And helps to pull in stations that some three or four gang capacitors can't touch. It comes with a five gang zinc plated variable capacitor that cleans up FM reception much better. The average high powered (and low powered) receiver conies with a three, or four gang variable capacitor for FM tuning. THE FM SECTION: A FIVE GANG VARIABLE CAPACITOR. And protect against tone burst distortion. A five gang variable capacitor for FM reception that nevet Jades low frequency response. Because we've found that the two extra capacitors help improve An extraordinary power supply, for an extraordinary amount of power. And instead of finding the usual two electrolytic capacitors in the power supply, you'll find four. Which means you get cleaner, clearer sound. It's less susceptible to voltage fluctuations. In our power supply, instead of finding a conventional transfor i r ler, you'll find a heavier, more advanced toroidal - core transformer.
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So the receiver not only produces crisp, interference - free sound when it's new but still sounds great as it grows old. And din and dust can't slowly build up to affect performance. So spurious signals from one section can't leak into another.
Unlike most high powered receivers, every critical section in the SX1250 is shielded. And the time and care that went into it can both be seen and heard.
Unlike the others, however, the SX1250 wasn't a rush job. 4 When Pioneer first introduced the 160 watt* SX1250 last year, it prompted our competitors to hastily introduce a bevy of high powered receivers.
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