Audio Database

The

ESS PS-8
a price -- unknown (one set, at the 1970s time?)

Description
 
The book shelf type speaker system developed in pursuit of cost performance also in ESS products.

The same small heil driver as Tempest series is adopted as a high region.
The accordion pleats made from Teflon are placed into the powerful magnetic field, and the heil driver has the structure where the element (electric conduction belt) was embedded on the side of each pleat of a pleat.
If a signal is impressed to this element, current will flow, by motion of a pleat, air is compressed and sound is emitted to space.
In order that a voice coil may emit sound to space directly by this operation, the outstanding dumping characteristic and low distortion are realized.

The 20cm corn type Woofer is adopted as low-pass, and the low-pass play is improved by carrying a 25cm passive radiator in the rear surface of a Woofer.

The enclosure serves as walnut material wind finishing.


Rating of a mode
System 2 ways and 2 speaker passive radiator system
- Book shelf type
Use unit For low-pass: 20cm corn type
For high regions: Small heil driver (electrostatic type)
Others: 25cm passive radiator
Frequency response 50Hz-20kHz±3dB
Output sound pressure level 94dB/W
Allowable input 100W Clean Power
Crossover frequency 2.4kHz
Dimensions Width 311x height 559x depth of 270mm
Weight 14kg