Care and Cleaning, Features | RBH Sound MC SERIES specs

Care and Cleaning

To maintain speaker appearance, we recommend an occasional application of furniture grade polish to the wood surface of the cabinet. To clean dust from the grille cloth, use a vacuum with a brush attachment.

Features

At the heart of the MC Series loudspeakers is a proprietary aluminum cone bass/midrange driver (speaker). The unique aluminum cone material combines stiffness, low mass and self damping properties in a manner which allows virtually uncolored presentation of program material. A powerful magnet, extended voice coil and bumped back plate give the bass/midrange driver high excursion capability, which ensures accurate dynamic reproduction. The drivers are shielded by using a steel cup and an additional magnet to cancel any stray magnetic field which may cause interference with video equipment such as tube televisions.

For high frequencies, a proprietary aluminum dome tweeter was developed. This tweeter uses Ferro Fluid® liquid cooling, allowing the tweeter to handle greater power while retaining detail and accuracy.

Steep acoustic slope crossovers are used to integrate drivers. The use of steep crossover slopes allows high power handling, minimizes driver interaction anomalies, and maximizes the clarity with which each driver is able to produce its respective frequency band. A polyswitch, or current limiting device, is used in the crossover to prevent damage to the tweeter if overdriven.

Cabinets are constructed of ¾-inch medium density fiberboard due to its inert properties, thereby preventing sound coloration due to cabinet diffraction. The thickness of the front baffles also prevents excess acoustic radiation. Large oversized gold binding posts ensure a good electrical contact. Sophisticated computer modeling and measurement techniques are used extensively in the RBH loudspeaker design process.

Attaching Speaker Wires

When attaching speaker wire to the terminals, it may become necessary to remove the black and red plastic protective inserts. To do this, loosen the binder nut from the post by twisting counter-clockwise until the nut is removed completely from the post. Remove the plastic inserts by pulling straight out. Replace the nut on the post by twisting clockwise. A hole is then provided in the top of the post to allow for banana type jacks to slide into. The nut is tightened until the wire is secure. Remember to strip the insulation from the wire prior to inserting the wire into the post. Repeat for the other speaker wire(s) as necessary. (See illustration on following page).