Innovative Audio Electronics

Rolls Corporation is an innovative audio electronics manufacturer specializing in interface accessories, mixers, amplifiers, signal processors and signal sources. Rolls began in 1989 when Marilyn and David O. Di Francesco introduced the HR100 amplifier, the HR11c Microphone Processor, the HR6x mixers, and the HR210 eq -all half rack at the New York AES Convention. David is well known and respected in the professional audio electronics industry, his first company still bears his initials. RFX came into being in 1993 with the release of the MP128p MIDIBUDDY. Soon, this unit was followed by dual-function effects pedals, a volume pedal, and a wah/volume pedal. Bellari was born in the summer of 1995 with the introduction of the RP220 Dual Tube Mic Preamp. The company today employs people who have a concern for quality workmanship as well as an eye and ear for no-nonsense, useful products.

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WHAT'S NEW

HMB115

Signal Converter

The HMB115 converts consumer level stereo RCA signals to balanced XLR professional line level, and back. One side of the unit, labeled 1, has two XLR inputs and stereo RCA outputs. The other side labeled 2, has stereo RCA inputs and two XLR outputs. Each side has stereo level controls. An additional benefit of the MHMB115 is that it will act as a balanced XLR line level control. The HMB115 was also designed to mount into a Rolls RMS270 rack tray, as shown below --RMS270 Compatibility Image--. This is a professional option for mounting two HMB115’s into a single space rack..

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HRD342

Digital Room / Speaker Delay

The Rolls HRD342 is intended for low cost, simple, time alignment of speakers in larger rooms or outdoors. The delay dial is shown in mili seconds to make setup easy. The 32 to 360 ms shown on the dial will correlate to about the same in feet (32 ms = 32 ft). The Rolls HRD342 is inserted between the main console output and the amplifiers supplying the delayed speaker signal.

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DB228

Wall Direct Interface

The DB228 Wall Direct Interface is an ideal impedance matching device for connecting any unbalanced stereo signal to a balanced system. Consumer audio equipment such as CD players, DVD players, MP3 players, phone, etc., may be easily connected to a professional audio system. In addition it will mix a microphone with a line level signal and send it out via a plugable barrier strip connector.

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VP549

RIAA Phono Preamp

The Bellari VP549 phono pre has excellent true sound resolution. It\\\'s tone center is right in the middle of the music. It performs very well on the extremes, and never looses its solid performance in the meat of the music. Has a well rounded sound when needed, but has a very surprising shimmer when called on. The VP549 is bold, yet has a very surprising attack that will take your rig to the next level. Hundreds of hours went in to listening and improving the design. All Bellari products are hand built in Salt Lake City, Utah by people who care about high quality music. No surface mount parts are ever used at Bellari.

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MA258

Integrated Audio Amplifier with RIAA Phono Preamp

The MA258 is a Integrated Audio Amplifier with RIAA Phono preamp built in. It has three selectable stereo inputs phonograph, RCA and a 3.5mm jack for phones or tablets. The MA258 also has a very well designed headphone output so it can be used as a stand alone headphone amplifier. The MA258 was designed to have the highest level of sound quality, whether you are using it as a headphone amp or with speakers. At every design stage we spent a considerable amount of time focused on one thing, sound quality.

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