PSI Car Audio Star Power 2500 Amplifier | PSI-SP-2500

MSRP: $799.99
(You save $200.99 )
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The Star Power 2500 amplifier is a single channel Mono amplifier designed to run at a 1 ohm load and is rated to produce 2500 Watts or more at 14.4V.

Star Power amplifiers are designed to offer better than rated power output capabilities along with the maximum possible reliability. These amplifiers will meet or beat their rated specifications

Star Power amplifiers can be linked together (strapped) so that 2 amplifiers can be combined to run as a single amplifier.

Standard version features include:
0 AWG Power and Ground terminal blocks (Dual for Star Power 5000)
Tiffany style RCA connections
Remote gain control knob
Clipping indicator (located on the amplifier and the remote gain control)
Protection indicator (located on the amplifier)
Thermal/Over Current/Speaker Short/Speaker DC protection circuits
Pink colored Double-sided epoxy PCB
Pink power LEDs
Custom tooled star heatsink
Reversible logo panel


Technical Specifications for Star Power 2500 Amplifier:
RMS Power Output @ 14.4V
4 ohms mono = 715 Watts
2 ohms mono = 1400 Watts
1 ohm mono = 2650 Watts
4 ohms linked (2 amplifiers) = 2700 Watts
2 ohms linked (2 amplifiers) = 5300 Watts

Signal-to-noise ratio = >90 db
Low pass frequency crossover = 30 Hz~250 Hz
Subsonic filter = 10 Hz~60 Hz
Bass boost = 0~12 db
Bass boost frequency = 30 Hz~90 Hz
Phase shift control = 0~180°
Frequency response  = 10 Hz~350 Hz
THD @ 4 ohm, 100 Hz = <0.1%
Efficiency @ 4 ohm, 100 HZ = 90%
Damping factor = >200
Input sensitivity = Variable 8V~200mV
Operating voltage = 8.5V~16V DC
Recommended inline fuse size = 200A


We recommend using a minimum of 12 AWG speaker cable, 10-8 AWG is preferred.

Do not mount your amplifier to your enclosure. Excess vibrations will cause damage.

Use fuses between the battery and amplifier (recommended 18″ or less from the battery)

We recommend a minimum starting impedance of 0.7 ohms (1 ohm rated load) for maximum reliability

Physical Specifications for Star Power 2500 Amplifier:
Width 9.69″ / 235 mm
Length 17.71″ / 450 mm
Height 2.22” / 56.5 mm

Star Power Amplifier User Manual

Products manufactured by PSI Car Audio are covered by a 1 year warranty.

  • PSI warranty covers all workmanship and materials on any defective items.
  • Defective items will be repaired or replaced at the discretion of PSI Car Audio.
  • Return freight costs shall be paid by the customer.
  • The warranty is NOT transferable.
  • The warranty does not cover burnt voice coils, burnt or ripped leadwire, ripped surrounds, customer abuse, improper installations, accidental damage, or any custom modifications.
  • The warranty does not cover amplifiers run under 1 ohm, damaged from low voltage, or overheating.
  • Any warranty repairs must the authorized via the PSI Warranty Request Form on their website

  • For further warranty information please see below url.

    5 Reviews Hide Reviews Show Reviews

    • 5
      Great, reliable, power house amp

      Posted by MaxB on Jul 19th 2021

      Great amp, never struggles when slappin’ or breaks a sweat. Got two of these strapped pushin two x12s. D4s wouldn’t carry a bad product so you know what it is dealing with the best. Psi will not disappoint

    • 5

      Posted by Max B on Jul 6th 2021

      You already know what to expect with PSI, superior performance and dope looks. D4S has by far the fasting shipping no joke. I live on east coast and literally got my amp in 2 1/2 days, crazy but true. Amp performs like a beast. I have two of the 2500 strapped, pushing 2 sundown x 12s d2’s @ 1 ohm and quakes pretty good. All in all tho this amp is what you pay for.. I’ve always had hifonics Brutus and yes PSI is mo money but it’s such a huge difference in sound and quality compared to hifonics. If you want a slappin’, bangin’, quakin, shakin’, setup, buy

    • 5

      Posted by Kevin Terrill on Jun 27th 2021

      This thing is a beast, quality components, quality equipment. If you are looking for the best! This is it.

    • 5
      I love this amplifier. This is my second one. I now own 2 psi star power 2500s on 4 12s and it is incredible in my extended cab Sierra.

      Posted by Bryan Hill on May 11th 2021

      Psi for the win

    • 5
      Beast amp

      Posted by Jose on Nov 13th 2020

      Way underrated very strong recommend to anyone wanting real deep bass