ONKYO
Scepter E-503A

The Scepter E series 3-way bookshelf speaker system, featuring the Scepter series speaker units.
The W-305A 30cm cone woofer is mounted in the low frequency range.

The weight of the unit is reduced by the use of a lightweight cone and a foam neoprene rubber edge.
It has a horn-shaped scorcher in the midrange.
The newly developed diffusion type horn converts sound waves into spherical waves inside the horn, which greatly improves the directivity of the horn type, which has been a weak point of the horn type.
A super-hard duralumin foil diaphragm is used for the diaphragm, and air damping is actively applied in the back cavity to improve transient and distortion characteristics, as well as to expand the range of low-frequency reproduction.

The TW-1800A diffuse horn-type tweeter is used for the high frequencies.
The precision-machined aluminum horn, coupled with a unique diffusion mechanism, achieves a natural sound quality with no horn-like sound.The diaphragm is made of an ultra-hard duralumin foil diaphragm, which provides superior stress-strain characteristics compared to conventional materials.
It has level controls in the midrange and high frequencies.

The enclosure is a 50-liter enclosed bookshelf type enclosure.
Multi-amplifier jacks are provided.
For the high frequencies, a 2.5cm dome unit made of aluminum magnesium alloy is used, which is 25% lighter than the previous model.

I can enjoy a sound field that I didn't expect to hear coming from a compact speaker. The sound localization of the sound is excellent and the vividness of the instruments and singers is impressive.

Condition	Surprisingly good when you take into account the year of manufacture.
Accessories	No, one of the multi-amp terminal covers is missing

Type	3-way, 3-speaker, closed system, bookshelf type
Impedance	8 ohms
Frequency response	30Hz~20kHz
Crossover frequency	800Hz,9kHz
Output sound pressure level	93dB/W/m
Maximum Input Force	60W
Input	30W
Dimensions	376W×6505H×300Dmm
Weight	19kg