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This amplifier was returned from a job site unused but the box has been opened.

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
RMS per channel, all 4 channels driven
Model 2 Ohms 4 Ohms 8 Ohms
XiB4 1250W 800W 450W

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

Remote operation is possible with Linea’s intuitive Podware 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

Each of the XiB’s four channels can deliver 1,250 Watts RMS in to 2
Ohms continuously, or up to 2,500 Watts in to 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

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 in to 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

Additional information