SELECTING OPERATING MODE

The three hundred watts available from the MC-300 can be -divided into two channels (stereo) [Figure I]. threechannels (stereo plus a single mono channels) [Figure 21, or four channels (front and rear stereo; or stereo bi-amp) [Figure 31.

To select any of these modes, remove the access plugs on the bottom of the amplifier and set the internal switches according to the desired mode of operation.

For two-channel operation. set both switches to MONO.

For three-channel operation, set one switch to STEREO and ttre other to MONO. Note carefully which is which, because you must connect wires accordingly.

For four-channel operation, set both switches to Sl~tHEO.

If you have an equalizerorlow-level crossover network(s) for bi or tri~amping. these components will be inserted between your tuner/deck and your amplifier(s). Refer to the manuals for these components for further details.

In four channel mode, all four input jacks (11 12.22, and 23j are active for CHANNEL A left and right, and CHANNEL B left and right, respectively.

In two CHANNEL mode, use only the “righf’ jack (12) for CHANNEL A. and only the “right” jack (23) for CHANNEL6.

In threechannel mode, useonlythe”right”jackforwhichever of main CHANNEL A or CHANNEL B is operating in mono. and both jacks for the other main channel,

OPTIMIZING FOR SPEAKER IMPEDANCE

As dellvered from the factory. your MC-300 has been opti- mized for 4 ohm operation. It is possible to optimize this amplifierto deliver lmaximum performance into 2.4. or8 ohm loudspeakers. This is done by moans of switches inside the amplifier.

Remove the plugs on the bottom of the amplIfter marked for Impedance optimization. Behind the plugs locate the two switches. one for CHANNELS A and one for CHANNELS B.

_Sel I!Tse switches separately based on the load which that speclflc patr of channels will be driving. If you are unsure of the impedance of your speakers, or you are wiring more than one speaker to a set of termlnals. consult your dealer or installer for the best settings.

INPUT CONNECTIONS

Inputs to the amplifter atlach by means of standard RCA- type jacks. The MC.300 achieves a level of performance at which cable and connector quality is significant: the jacks on your amplifier are gold plated. and we recommend Sound- stream Interconnecting cable or an equivalent premium cables

In most cases, the signal source will be the preamp output jacks of a tuner!deck. Some tuner/decks use preamp output connectors other than RCA jacks, in which case you will need a special adapter available from your dealer.

If your tuner/deck has speaker outputs and no preamp outputs. you can use the speaker outputs. Wire an RCA connector to the end of your tuner/deck’s output wires. making sure that you maintain consistent polarity in all channels.

OUTPUT CONNECTIONS

Use high quality Soundstream speaker cable or an equiva- lent premium cable for best results.

In four channel mode, all four terminals (4.5.6.7) are active for main CHANNELA: and all four terminals (15. 16. 17; 18) are active for main CHANNEL 13

In two channel mode, use only the “+”terminals (15, 18) for CHANNEL B. The “+right” terrrlinals (4, 7) have positive polarity in this mode.

In three channel mode, use only the “+“terminals for which- ever of main CHANNEL A or CHANNEL B is operating in mono, and all four terminals for the other tmain channel.

The terrrlinals on your loudspeakers are marked for polarity. and loudspeaker wire is coded bycoloror by markings on the jacket. Be sure to connect the left and right channels with the same polarity. Loudspeaker manufacturers are not consis- tent in their polarity markings, so if you have loudspeakers of different types connected to the same amplifier terminal. venfy correct polarity by ear. The correct polarity produces the most bass; incorrect polarity produces less bass and a strangely dislocated sound image on mono material.

If you have more than one amplifier: for each amplifier and its loudspeakers, the left and right channels must always be wired witl0he same polarity. But from one amplifier to the next. correctpolarity may bethesame, or it may be reversed. This is because of differences in amplifier design. the nature of crossover filters. and other factors. Again experiment and verify the correct polarity by ear.

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Soundstream Technologies MC-300 owner manual Selecting Operating Mode, Optimizing for Speaker Impedance, Input Connections
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MC-300 specifications

The Soundstream Technologies MC-300 is a cutting-edge multimedia car receiver that showcases the brand's commitment to delivering high-quality audio experiences while integrating advanced technology for a seamless user interface. Designed for audiophiles and casual listeners alike, the MC-300 stands out with its sleek aesthetics and user-friendly functionalities.

One of the key features of the MC-300 is its compatibility with both Apple CarPlay and Android Auto. This allows users to easily connect their smartphones and access navigation, music, and communication apps directly through the receiver's display. The large touchscreen provides a clear interface, enhancing ease of use while driving. The intuitive design ensures that essential functions are easily accessible, minimizing distractions on the road.

Audio performance is at the forefront of the MC-300's engineering. It supports high-resolution audio playback, delivering crystal-clear sound quality that elevates any driving experience. The device is equipped with a powerful built-in amplifier that offers high wattage output, allowing for robust sound with deep bass and clear highs. An equalizer with multiple presets gives users the ability to customize their listening experience according to their preference.

The MC-300 features Bluetooth connectivity, enabling hands-free calling and wireless audio streaming. This enhances convenience and promotes safety by allowing drivers to keep their hands on the wheel and eyes on the road. It also supports a range of audio formats, including MP3, WMA, and WAV, ensuring versatility for different media sources.

Another noteworthy characteristic of the MC-300 is its robust connectivity options. It includes numerous inputs and outputs, such as USB ports and AUX inputs, catering to various audio devices. For those who wish to expand their audio environment, it also features preamp outputs for adding external amplifiers and subwoofers.

In terms of durability, the MC-300 is designed to withstand the rigors of the car environment. It features a solid build quality, ensuring longevity and reliability. Additionally, the display is equipped with anti-glare properties, allowing for clear visibility even in bright sunlight.

Overall, the Soundstream Technologies MC-300 represents a harmonious blend of sophisticated technology and superior sound quality. Its array of features caters to modern driving needs, while its emphasis on performance makes it an excellent choice for anyone looking to upgrade their car audio system.
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