Sansui J33 loudspeakers

60 W Power Handling, 90 dB/W Efficiency and 45-20,000 Hz Frequency Range

There are speaker systems a hundred times the size of the Sansui J33 which can't offer nearly the sound quality. Power handling capacity is 60 watts, an advantage ordinary small speaker systems can't equal. Efficiency is an excellent 90 dB/W at one meter, meaning you can drive the J33 with a relatively low-powered amp or receiver without problems of lost dynamic during the loud passages. Then, to ensure that you get your music's worth when you play any true high fidelity source, the frequency range is a wide 45 to 20 kHz - strictly hi-fi , right systems - staggered from the center axis to the left and right respectively - are on the "outside" for ideal response in your listening area. The staggered arrangement of the speaker units within each system assures pinpoint stereo imaging.

 

Two-way Design and Mirror-Paired Units for Incomparable Stereo Imaging

Sansui packages the J33 in matched stereo pairs; we suggest you mount them so that the tweeter of the left and right systems - staggered from the center axis to the left and right respectively - are on the "outside" for ideal response in your listening, area.

The staggered arrangement of the speaker units within each system assures pinpoint stereo imaging.

 

Luxurious "Piano" Finish on a Compact Speaker System

The Sansui J33 is finished in a deep black luster much in the same way a fine piano is finished. First the surface on the high-density enclosure panels are filled, then two layers of special lacquer are applied, again sanded smooth. Three more coats of lacquer are applied,, again sanded with care, filled, then wax-buffed to a high shine. The entire process takes nine separate steps, and results in an enclosure surface so smooth and hard it can resist nicks and scratches to retain its beautiful luster over the years.

Precision Panel Joining Means Ideal Air-Suspension Performance

Here's one of the secrets of the realistic bass response in the j33 - air-tight enclosure cabinetry that acts as a "spring" to reinforce the rich resonance of the low frequency musical sound waves produced by the woofer. To enclosure solid joints, Sansui craftsmen use a "plain miter Joint" technique, angling the edges of the enclosure panels and fitting the corners with extreme precision.

Seamed-Sheet Cone Assures Deep Musical Bass in 21 cm Woofer

The uniformly distributed mass and even thickness of the cone materials offer ideal density without adding unnecessary weight. Shape, too is important here, for the woofer cone is not straight but curved - formed by seamed-sheet technique which discourages distortion of all kinds. Ideal internal loss contributes still more to rich bass response.

The cone is then suspended by a rolled surround for ideal compliance, retaining its mobility even at high-level driving. Response is smooth whatever the level because the magnetic circuit features a large-sized ferrite magbet forming an exceptionally strong magnetic flux along the specially-treated, low-mass voice coil. High power handling, unusually high efficiency for a compact and believable bass reproduction are the advantages.

One-Piece Soft-Dome Tweeter Spreads Crisp Highs

Soft-dome tweeters, such as that in the Sansui J33 are known for their ability to avoid "beaming". That is, their output is radiated evenly in an expanding arc pattern to reach every corner of your listening room. Our soft-dome diaphragm, formed of polyester fiber of ideal firmness and elasticity, is damped by a uniform coating of acrylic-based chemical agent to effectively control harmful resonance while assuring linear response to varying input levels.

The dome is formed with a rolled surround all in one piece. Tonal degradation, caused when domes and surrounds are separately manufactured and bonded together, is thus avoided. Heat and distortion, too, pose no problem. This is because we use a 13,000 gauss magnetic circuit, a light voice coil and a rigid voice coil bobbin.

 

Specifications

Speakers

Woofer:  210 mm (8-1/4") cone type

Tweeter ;  25,4 mm (1") dome type

Max. Input Power:  60 watts

Impedance:  6 Ω

Sensitivity:  90 dB /W (JIS at 1 1m)

Frequency Range:  45 to 20,000 Hz

Crossover Network:  2-way, 12 dB/oct, L-C parallel type

Crossover Frequency:  2,000 Hz

Dimensions (W x H x D):  240 x 410 x 200 mm (9-7/16" x 16-1/8" x 7-7/8")

Weight:  7,2 kg (15,9 lbs)