Linea’s XiB4 is a four channel amplifier suitable for use anywhere a powerful, clean sounding product with inbuilt DSP is required. Equally at home in portable PA, conferencing and contractor environments the XiB4 is the perfect choice in any application where being tamperproof is important.

XiB4 Features

• Four channels of sonically pure Class D amplification
• Unique, precise, 96kHz digital signal processing
• Over‐designed switch mode power supply
• 85V to 240V Auto-sensing PSU
• 5,000 watts RMS total output
• Tamper proof front panel
• USB and BvNet network operation
• Powerful grouping & multi‐layer EQ
• Fully designed and engineered in house by Linea Research
• Manufactured in the UK

Linea’s XiB4 is a four-channel amplifier suitable for use anywhere a powerful, clean sounding product with inbuilt DSP is required. Equally at home in portable PA, conferencing, and contractor environments the XiB4 is the perfect choice in any application where being tamperproof is important.

Remote operation is possible with Linea’s intuitive System Engineer 7 PC application over BvNet, our installation friendly network. BvNet is an RS485 based system that allows many XiB4 amplifiers to be ‘daisy chained’ over hundreds of metres using low-cost cables and without the need for network switches etc. Integration with other parts of a system is possible using dimple contact closure ports and Linea offer a range of interface units that allow seamless connection to Ethernet and Dante.

The XiB4 also provides extensive fault and status logging including driver integrity monitoring. These facilities are usually only associated with expensive specialised products, and this is the first time that they have been made available as standard features for no additional cost.

The advanced 96kHz DSP is fully integrated into the product and provides an array of unique and genuinely useful features. Because all aspects of the DSP algorithms are designed and hand crafted in house by Linea, they are not available on products from any other manufacturer. For example, LIR linear phase crossover filters which are as easy to use as more conventional filter shapes and have less latency than FIR filters.

Each of the XiB’s four channels can deliver 1,250 Watts RMS into 2 Ohms continuously, or up to 2,500 Watts into 4 Ohms for a bridged pair of channels. Unusually these are not, ‘transient’, ‘burst’ or ‘peak’ power figures, they are the power levels that are delivered by all channels simultaneously even when driven with the same dense program material.

With Linea amplifiers there is no need to ration power between channels, you can use all the power you have paid for all the time.

Linea can do this because state of the art components and a finely optimised design results in an amplifier that is more efficient than competitive products. This efficiency gain directly translates into the generation of less wasted energy (heat). In addition to reducing energy costs high efficiency results in generous power reserves ensuring that pristine sound quality is maintained even under the most extreme conditions.