Pioneer S-2D

Commentary

A surround system consisting of a subwoofer and two satellite speakers.

The subwoofer uses a double-duct drive system for compact size and low sound reproduction.
It has two ducts, one in front of the woofer unit and the other in the upper part of the inner baffle inside the enclosure. Sound from the front of the woofer comes out from the duct in front of the unit, and sound from the back passes through the sound path from the duct in the upper part of the inner baffle and is guided to the duct in front of the unit and radiated outside.
In this way, the low range is expanded by applying back load which is effective for bass enhancement.

The satellite speaker is a coaxial two way type that combines a 10 cm cone type and a 2.5 cm cone type.

A base unit is included for the setting free type satellite speaker.
This base unit is designed to fit the R-shape of satellite speakers. When placed on a shelf, it is installed as it is when placed vertically, and when placed horizontally, it is installed by placing the base unit.
In addition, the accuracy can be changed such as front facing or upward facing.
When mounting the speaker on a wall, fix the speaker and base unit with the supplied screws, and then mount the base unit on the wall.

There was a set of 3 satellite speakers sold separately.

Model Rating

Type	Surround system
<Subwoofer>
Method	1-Way, 1-Speaker, Double Duct Drive System, Floor Type
Units Used	For Ultra Low Band : 20 cm Cone Type
External dimensions	Width 280x Height 420x Depth 260 mm
Weight	9.0kg
Attachment	4 feet 4 screws
Satellite Speaker
Method	2-Way, 1-Speaker, Airtight Type, Bookshelf Type
Units Used	For All Bands : 10 cm Coaxial Type (10 cm cone + 2.5 cm cone)
Crossover frequency	5kHz
External dimensions	Width 130x Height 200x Depth 107 mm
Weight	0.75kg
Attachment	One Base Unit Stopper x2 1 screw (per unit)
<Overall characteristics (left / right channel + subwoofer)>
Impedance	8 Ω
Playback frequency band	40 Hz to 20 kHz
Crossover frequency	150Hz
Output sound pressure level	85dB/W/m
Max Input	100W(EIAJ)
Sold Separately	Satellite Speaker System S-CR22 (1 set of 3, ¥ 21,000)