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Pioneer SD-1100

Stereo Display Unit (1972-74)

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Pioneer SD-1100


The serious audio enthusiast who has long sought a precise method of scoping and testing his stereo components, with the objective of achieving ultimate sound performance at all times, will find Pioneer's new Stereo Display, Model SD-1100, to be the most complete instrument of its kind for this purpose.

Here, in one attractive, sensitive unit, is the capability for observation of the various stereo wave forms and a means of measuring the various characteristics possessed by all audio instruments, including amplifiers, tuners, speakers, cartridges, tape decks, etc. From every technical point of view, the Model SD-1100 is an advanced and truly versatile instrument.

You may, for example, use the Stereo Display to observe and analyze the wave forms of the new 4-channel stereo systems while at the same time measure the sound field characteristics of your own listening room.

You can observe a stereo display, measure a voltage level, measure a phase shift by means of a Lissajous pattern, measure stereo sound by observing a difference in level of output signals, even check the frequency response of a cartridge while playing a stereo test record. Much more, too.

Pioneer's Stereo Display installs easily and with its handsome design will complement your existing stereo equipment. Most important, an investment in this unit will be an investment in unparalleled sound quality.


Cathode ray tube: 75mm electrostatic deflection type

Oscilloscope sweep frequency range: 5Hz to 250kHz

AF sweep frequency response: 20Hz to 20kHz

Dimensions: 430 x 138 x 349mm

Weight: 9kg

Semiconductors: 7 x FET, 68 x transistors, 50 x diodes


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Reviewed Jul 08th, 2017 by RTM

It might not be the first item of its type, but it surely is in the running for being the finest. I've wanted one my entire life (or at least since I became aware of them as a teenager) and everything it claims to do, it does VERY well. You can test for Distortion, Frequency Response, Channel Balance (between phono cartridges, for example-but between any two channels of any device really) and FM Multipath. And that just scratches the surface. The 1100 is the next step evolution of the other (equally useful and at least as beautiful) SD-1000. The 1000 does not have a dedicated 4 Channel analysis feature like the 1100 does, but you can still analyze 4 channels two at a time through the rear high level (post amplification) inputs of the 1000. I think Marantz Tuners preceded McIntosh, Pioneer and KW in the area of offering a Stereo Display analyzer Oscilloscope feature. But the others seem to offer a dedicated device starting around 1970 or so. And they're not captured FM Multipath dedicated devices. Complete information about that is hard to verify, so if I'm mistaken, please amend my contribution. The Pioneer SD-1100 is by far the most famous though. I HIGHLY recommend it, especially if you wish to learn more about how to test your own gear. (Goes double for Quad.) Modern Oscilloscopes are both cheaper and (probably) better with respect to waveform analysis, but they don't (in my experience) give you the combination of features and versatility that these classic pieces do. I own one of each. It (as the ad copy of the day said) CAN make your system sound better, if you use it as a diagnostic tool. I fully endorse the idea of owning and using one as a purely aesthetic enhancement/self-educational tool. It worked for several generations of audiophile and it can still work today. Just make sure you get a good look at the CRT before you purchase. Replacement CRT's are OUT there but are becoming VERY rare and difficult to find. Most enthusiasts I know do not let these devices run unattended. After forty years, adding unnecessary hours to the CRT isn't wise for continued longevity.



re: SD-1100

Update: The SD-1100 was in advertising all the way up to nearly 1976. So I think it MIGHT not be as rare as the SD-1000 is. I think the 1100 might well be more in DEMAND, but I'm not at all sure that it's more rare.

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