SKU: V-5925-MB1563 MB 156-3 Speaker Kit

Visaton Speaker Kit - MB 156/3
Art. No. 5925

Visaton MB 156/3 - shown assembled with suggested cabinets, not supplied.

Characteristics and Sound Properties
The MB156/3 extends the range of musicians' speakers available from Visaton by adding one new 3-way combination. The bass department is controlled in this arrangement by the BGS 40 - 8 Ohm, which is a carry-over from the successful MB 115/H. The mid-range is provided by the BG 17 - 8 Ohm which, thanks to its high sensitivity level, has no problem at all matching the output level of the woofer. The combination is neatly rounded off at the top range of frequencies by the HTH 8.7 - 8 Ohm horn which has also already made a good impression in other speakers.

To ensure that the high sensitivity of the BGS 40 - 8 Ohm, which on average is 95 dB (1 W/1 m), is also achieved at the low frequency range, there are two bass reflex vents in the baffle. Having the tuning frequency set at a high 55 Hz means that the thickness of the material used for the front panel is sufficient as the length of the bass reflex tubes. No tunnels or tubes are required.

A well-tuned crossover ensures that each of the three drivers only deals with the range of frequencies for which it was originally designed. In the case of the MB 156/3, this arrangement results in a highly linear frequency response, even at high output levels, which is close to hi-fi needs.

Technical Specifications

Frequency and Impedance Response

Frequency Response and Impedance Graph

Exploded Cabinet Drawing

Exploded Speaker Box Drawing

Assembly
At first the 80° bevel has to be added to all adequate boarders and sides of the cabinet panels which are cut from 19 mm chipboard or medium density fibreboard, butt-jointed and glued. After that, the openings for the driver and terminals are cut out and any necessary recesses cut. The tapering cabinet design is just for aesthetics. The cabinet can also be built in oblong design when the volume is retained.

The crossover has to be mounted on the inner side of the rear panel across from the woofer.

Internal Damping
The damping material is loosely pushed into the cabinet. The space immediately behind the bass reflex cut outs must remain free.

Component Parts List for Each Box - Supplied with Kit
The kit comes with all necessary components (see list below for one box), one set if the speaker is an each, or two sets for a pair, see price above for details.

Speaker Cabinet Material List to Make 1 Box - Not Supplied with Kit

Speaker Cabinet Dimensions

Loudspeaker Box Construction Diagram - all dimensions in mm.

Crossover - Supplied with Kit Already Assembled

Speaker Kit Crossover Circuit