SANSUI SP-6000

Commentary

This is a three way speaker system that uses a fully-designed horn tweeter.

A 30.5 cm cone type woofer is installed in the low range.
The corn paper is made of pulp corn based on coniferous trees. It is lightweight and has excellent properties of high rigidity. In addition, the down roll edge is used for the edge part.
The magnetic circuit uses a large Alnico magnet of 55 φ x35mm, and the frame uses a sturdy aluminum die cast with a scratch finish.

Equipped with a 16.5 cm cone type squaker in the middle area.
As with the woofer, the diaphragm is made of softtree-based pulp cone. The curved cone has multiple curvatures. The edge has a corrugated free edge, which prevents distortion due to split vibration and provides a flat playback band.
A 40 φ x25mm Alnico magnet is used for the magnetic circuit, and a fully enclosed back cavity with good sound absorption is provided on the back to prevent the influence of woofer sound pressure inside the enclosure.
The frame uses an aluminum die-cast frame with a scratch finish.

A horn type tweeter is installed in the high frequency range.
The diaphragm is a rear drive inverted dome type diaphragm made of super-hard duralumin with a diameter of 25 mm and a thickness of 50 μ m. This diaphragm is hand-made and carefully finished with precision, and uses a heat-resistant voice coil bobbin.
The EQ section uses a multi-hole equalizer that has good phase characteristics up to the ultra-high frequency range and emits a constant sound pressure. There are a total of 19 holes in the EQ section to ensure smooth high-frequency characteristics. Moreover, compared with a ring-shaped slit-type equalizer, the load on the diaphragm is uniform and the transient characteristics are improved.
A large ferrite magnet with a diameter of 90 mm is used for the magnetic circuit. In addition, an appropriate back cavity is provided on the back surface of the diaphragm, and a sound absorbing material is built in to prevent resonance.

The network section has an impedance compensation circuit in the woofer band, making the connection with the squaker and tweeter natural. The network element uses a drum-type core with high magnetic saturation and stable operation even at high output. The tweeter uses an MF (metalized film) capacitor to reduce distortion.

Equipped with a click-type level control that can adjust the sound pressure level of the squaker and tweeter.

The unit layout is designed to be symmetrical and improves the orientation in listening positions.
The enclosure uses a combination of hard acoustic particle boards and lauan plywood and is carefully reinforced to prevent the box from ringing due to unwanted resonance phenomena. For example, the side plates, bottom plates, and top plates are joined together by a spline tome structure, the front baffle plate and each plate are joined by a reliable hozo assembly structure, and the corners are joined by a angle block, with reinforcing bars attached to the side plates, top plates, and bottom plates.
Sound absorbing material is built into the enclosure.

The front grille features a thin Oxford-blue swivel RUNNET with good acoustic characteristics, and the enclosure features a natural wood walnut open pore finish.

Model Rating

Method	3-Way, 3-Speaker, Bass reflex system, Bookshelf Type
Unit	For low band : 30.5 cm cone type For Medium Range : 16.5 cm Cone Type For high frequency : 6.4 cm horn type
Playback frequency band	30 Hz to 20 kHz
Maximum allowable input	60W
Impedance	8 Ω
Output sound pressure level	93dB/W(New JIS)
Crossover	3-way, 12dB/oct., LC balanced
Crossover frequency	800 Hz, 7 kHz
External dimensions	Width 383x Height 681x Depth 323 mm
Weight	24.0kg