Marantz Imperial 9
¥ 189,000 (1 unit, around 1975)
Commentary
Marantz's large speaker system.
Two 25 cm cone type woofers are installed in the lower range.
The mid-range has four cone mid-range and the high-range has two cone tweeters.
The middle and high range units are mounted on an air couple board to improve the sound diffusion effect while suppressing distortion.
The unit layout uses symmetrical mirror imaging to improve stereo separation by making stereo images and sound diffusion effects symmetrical.
The enclosure uses a bass reflex system.
A diamond cut grill is used for the front grill to enhance the design and sound diffusion effect.
It can be placed vertically or horizontally.
Model Rating
| Method | 3-way, 8-speaker, bass reflex system, floor type |
| Units Used | For low band : 25 cm cone x2 For Medium Range : Cone Type x4 For High Pass : Cone Type x2 |
| Impedance | 8 Ω |
| Playback frequency band | 30 Hz to 18 kHz ± 1.5 dB 35 Hz to 17 kHz ± 3 db |
| Rated input | 100W 150W(Peak) |
| Output sound pressure level | 91dB/W/m(1kHz) |
| Distortion factor | 0.5% or Less (100 dB SPL, @ 0.5m, 50/500/5k/12.5 kHz 2nd / 3rd Harmonic Distortion Average) |
| External dimensions | Width 610x Height 775 (Body Only) x Depth 457 mm |
| Weight | 53kg |