CHAPTER 2

Biamping

If your speakers can be biamped, the Cinema Grand AmpliÞer can be conÞgured to provide a very powerful stereo system.

Inputs

Tweeter

Woofer

A speaker which can be biamped or biwired will have two sets of binding posts. Sometimes these posts are joined with shorting links for normal operation.

Make sure that any links are removed when you want to biamp or biwire the speak- ers. If not, this may cause damage to the ampliÞer.

Each speaker can be driven by two ampliÞer channels, one to drive the woofer and one for the upper range. You will need to use four ampliÞer channels to run two speakers.

If you use the Cinema Grand Ampli- Þer for biamping, then a total of three speakers can be connected. You will need an extra two channel ampliÞer if you want to run the surround speak- ers in a Home Theater system.

The following connections are shown in the diagram on the next page.

Output connections

•Connect the ampliÞer’s right rear output to the right speak- er’s woofer input terminals and connect the ampliÞer’s right front current source output to the right speaker’s upper range input terminals. If you prefer, you could use the right front voltage source instead.

•Connect the ampliÞer’s left rear output to the left speaker’s woofer input terminals and connect the ampliÞer’s left front current source output to the left speaker’s upper range in- put terminals. If you prefer, you could use the left front voltage source instead.

Input connections

Each ampliÞer channel has two RCA inputs which are connected together internally.

•Connect the preamp stereo output to the front channel RCA jacks. Then install short interconnects from the other unused front RCA jacks across to the rear channel RCA jacks. In this way, the front and rear ampliÞer channels are fed with the same signal from your preamp.

•Note: you cannot use XLR cables in, with RCA out, or RCA in with XLR out. There is no direct internal connection between the RCA and XLR inputs.

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User's Manual

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Sunfire 400 ~ five, 200 ~ five manual Biamping, Output connections, Input connections
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200 ~ five, 400 ~ five specifications

The Sunfire 400 is a high-performance audio amplifier that has garnered attention for its remarkable features, advanced technologies, and exceptional sound quality. As part of Sunfire's renowned lineup, this amplifier is designed to meet the demands of audiophiles and home theater enthusiasts alike.

One of the standout characteristics of the Sunfire 400 is its impressive power output. Delivering 400 watts per channel at 8 ohms, it ensures that even the most demanding speakers are driven to their fullest potential. This translates to a dynamic audio performance that maintains clarity and detail, regardless of the volume level. Additionally, its ability to handle lower impedances makes it versatile for various speaker setups.

The Sunfire 400 incorporates advanced technologies that contribute to its superior performance. One such technology is the patented Tracking Downconverter, which allows the amplifier to achieve higher efficiency levels without compromising audio quality. This innovative design minimizes heat generation and maximizes power output, allowing for a compact form factor without the bulk associated with traditional amplifiers.

Another key feature of the Sunfire 400 is its comprehensive set of connectivity options. The amplifier includes balanced XLR inputs, RCA inputs, and speaker outputs, ensuring compatibility with a wide range of audio sources and setups. This flexibility makes it a viable choice for both two-channel audio systems and multi-channel home theaters.

The build quality of the Sunfire 400 is impressive, featuring a robust chassis that not only enhances durability but also aids in reducing unwanted vibrations. This construction is essential for maintaining audio fidelity, ensuring that the signal integrity is preserved through the entire amplification process.

Furthermore, the amplifier boasts advanced protection circuitry to safeguard both the amplifier and connected speakers from common issues such as overheating and short circuits. This reliability is crucial for those who wish to use the Sunfire 400 in extended listening sessions or during peak performance situations.

In conclusion, the Sunfire 400 stands out as an exemplary amplifier that combines power, efficiency, and sound quality. With its unique technologies, versatile connectivity, and solid construction, it’s designed to meet the needs of both casual listeners and serious audiophiles. Whether used in a home theater or a dedicated music setup, the Sunfire 400 promises a captivating audio experience that is hard to match.
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