How do you choose a Hertz amplifier?
This collection carries the compact HMP 4D four-channel and HMP 1D mono amplifiers, and the SP 4.500 and SP 4.900 four-channel amplifiers and the SP 1.900 mono subwoofer amplifier. Match the amplifier to your speaker impedance and channel count: a four-channel amp for the speaker stage and a mono amp for a subwoofer.
FAQ
HMP or SP, which line do I need?
The compact HMP amps suit a tidy, straightforward upgrade in tight spaces. The higher-power SP amps suit a larger, more demanding system. Match the power to your speakers and tell us the build.
Which amp for a subwoofer?
A mono amplifier, either the compact HMP 1D or the higher-power SP 1.900, depending on the subwoofer and the output you want. See the Hertz subwoofers.
How many channels do I need?
A four-channel amp such as the HMP 4D or SP 4.500 runs a front and rear pair or a bi-amplified front stage. A subwoofer normally adds a separate mono amp. Match the channel count to your layout.
Will a Hertz amp fit on my bike?
The compact HMP amps are sized for tight motorcycle spaces. Check the dimensions of the higher-power SP amps against your intended mounting location.