TRY THE MARANTZ PIVOT TEST. YOUR EARS WILL NEVER KNOW OUR LOUDSPEAKERS MOVED.
above: The Marantz speaker disperses all the frequencies 180 degrees. Conventional speakers tend to narrow certain frequencies. In actual test, speakers should be placed the same distance apart as you are away from them.
By using a simple test you can prove to yourself that Marantz loudspeakers deliver the same brilliant sound separation over the widest possible listening area.
Here's the test:
Have your Marantz dealer place any pair of Marantz floor-standing loudspeakers in a normal listening position.
Now, listen as your selection of dynamic music is played through the Marantz loudspeakers. Notice the three dimensional quality of the sound.
Now close your eyes and have two people slowly turn the Marantz loud speakers until they're actually facing each other. Did the sound change? In almost every case we've found the listener cannot hear a change in the sound ... because there isn't any! Even with the loudspeakers facing each other. Incredible! But if you try the same test with most conventional loudspeakers you'll notice a striking difference. The sound literally falls apart. You'll hear a loss of overtones--sparkle and brilliance--all the qualities that make music open and spacious disappear.
WHY MARANTZ PASSED THE TEST WHILE OTHERS FAIL.
In a nutshell: Constant Radiated Power (CRP) --180 degrees dispersion regardless of frequency. To achieve CRP we consider both the frequency response and dispersion characteristics of each individual transducer in the system; woofer, midrange and tweeter.
The result is a unique design approach incorporating three important performance parameters:
1. We know that dispersion is determined by the diameter of the radiating surface-the speaker cone-and the frequency being reproduced. So we pick the precise frequency at which each individual driver radiates 180 degrees and use this as the crossover point.
But many manufacturers often cross over at a frequency where, for example, the woofer's dispersion has already started to beam. Why? They may be trying to save money by using cheaper transducers and crossover networks. Or, perhaps they consider CRP to be unimportant. But you won't!
2. Our transducers are positioned on the baffle to ensure the best possible dispersion.
Other manufacturers may position their driver for eye-appeal, but that's not good enough for Marantz.
3. To control transition between our drivers, we use the most sophisticated, best thought-out crossover networks ever developed.
As you can see from the illustration below (Fig. A), wherever you are in the room you hear the same ideal stereo separation and 180 degrees dispersion pattern. Notice how the other speaker "beams" certain frequencies in a narrow corridor (Fig. B). Unless you sit directly in front of those speakers, you lose part of the music.
above: Tone burst test demonstrates superior low stored energy characteristics of Marantz loudspeakers. Original signal. Note instant start/instant stop of trace; Marantz loudspeaker. Note close similarity to original signal. Competitor. Note overhang caused by inability of cone to stop vibrating.
TRANSDUCERS YOU'D EXPECT FROM A WINNER.
Wide sound dispersion alone doesn't guarantee sonic accuracy. You also need transducers that exhibit low distortion and low stored energy.
Stored energy is the continued vibration of a loudspeaker's radiating element after the driving force has stopped. It can exist in any loud speaker; woofer, midrange or tweeter, and is heard as a smearing or running together of the individual instruments.
To assure Low Stored Energy, Marantz uses extremely rigid cones and domes tightly coupled to the voice coil to create a homogeneous rigid structure. Accurate control of this structure is then assured by an extremely powerful magnetic motor assembly. The result is that Marantz transducers move as a unit in a smooth, piston-like motion without the slightest hint of cone break-up or flexing-even under the most rapid acceleration and deceleration! You hear precise, sharp instrument definition truest musical sound possible--wherever you are in the room! Your Marantz dealer has the full line of Marantz speaker systems. If you truly want the best- and are willing to spend a little more to get it-then go for it. Go for Marantz.
©1978 Marantz, Co., a subsidiary of Superscope, Inc., 20525 Nordhoff St., Chatsworth, CA 91311. All Rights Reserved.
(Audio magazine, Nov. 1978)
Also see:
Marantz 940 speaker system (May 1978)
Marantz speaker system (Apr. 1973)
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