Complex sentence: As a result of the improvements to PA systems and monitor systems, bass players in the 2000s no longer need to have huge, powerful amplifier systems; instead, contemporary bass amps featuring preamp-out jacks can be patched to the PA.
Split into simpler sentences: As a result of the improvements to PA systems and monitor systems, bass players in the 2000s no longer need to have huge, powerful amplifier systems. Instead, contemporary bass amplifiers usually have preamp-out jacks can be patched to the PA.