Audio Database

SP-300
Commentary

This large-scale floor-type speaker system was developed with the aim of providing sound that is so natural that speakers are not conscious of it.

A 30 cm cone type unit is used for the low range.
For the cone paper, we have developed a slightly thick and hard paper, and the edge uses a cross roll shape.
The magnetic circuit uses 8 magnets and achieves a magnetic flux density of 13,600 gauss.

A full-scale horn with a screwdriver unit using 8 magnets is adopted for the middle area.
Hard duralumin is used for the diaphragm.

Two square horn-type units are used for the high range.

The network uses a specially designed coil of 12dB/oct. utilizing SANSUI's transformer technology.
In addition, it is equipped with 3 point tap-type level control for high band and middle band respectively.

The enclosure is a bass-reflex system using a pipe duct, and a sound-absorbing material is placed inside to reduce interference.
The material is a chip board 21 mm thick with a walnut finish.

Model Rating
Method 3-Way, 4-Speaker, Bass Reflex System, Floor Type
Unit For low band : 30 cm cone type
For Middle Range : Horn Type
For High Frequency : Horn Type x2
Frequency characteristic 35 Hz to 20000 Hz
Max Input 50W
Impedance 8 Ω
Output sound pressure level 104dB/W
Crossover frequency 1000 Hz, 6000 Hz (12dB/oct.)
External dimensions Width 460x Height 700x Depth 420 mm
Weight 35.6kg