YL Acoustic YL-11 (CS-28)
¥ 49,500 (1 unit, around late 1960 s)
Commentary
This speaker system has achieved low prices while maintaining high standards through thorough design and production rationalization.
In the lower range, a 30 cm cone type woofer is mounted, which is designed considering the connection of sound quality with the horn type unit.
The mid-range is equipped with a horn type mid-range.
This unit combines a driver unit with the same performance as the separately sold 350F unit and a newly designed wide-directional horn, EL 500.
A horn type tweeter is installed in the high frequency range.
This unit uses a driver unit with the same performance as the 180F unit sold separately, and an elliptical horn EL 2500 with wide directivity.
Air-core coils are used for all network parts.
The front baffle is equipped with an attenuator that can switch between the high and middle ranges in three 2 dB steps.
For multi-amplifier, it is equipped with a terminal that does not pass through the network and can be used by switching.
The enclosure uses a bass reflex design.
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Model Rating
| Type | 3-Way, 3-Speaker, Bass Reflex System, Floor Type |
| Design Number | CS-28 |
| Speaker used | For low band : 30 cm cone type For Middle Range : Horn Type (350F Same Performance Driver + EL-500 Horn) For High Range : Horn Type (180F Same Performance Driver + EL-2500 Horn) |
| Frequency characteristic | 35 Hz to 22 kHz |
| Maximum allowable input | 30W (Music Power) |
| Input impedance | 8 Ω |
| Network | LC Type |
| Crossover frequency | 600 Hz, 6 kHz |
| External dimensions | Width 420x Height 740x Depth 415 mm |
| Weight | 30kg |