Infinity Reference 4555A 5-Channel Amplifier
(Infinity REF4555A)
We Think You Should Know
- 5-channel Class D Amplifier
- 45W x 4 + 320W - RMS 4Ohm
- 65W x 4 + 500W - RMS 2Ohm
- 130W x 2 bridged @ 4Ohm + 500W @ 2Ohm
- ADAS & HALO Sonic Inputs
- SNR: 85dB
Overview
Infinity's Reference 4555a 5-channel amplifier will add a lot of muscle to your music without breaking a sweat, and it'll look good doing it. This amp sends 45 watts RMS to each of the front and rear speakers in your car while delivering up to 500 watts RMS to a subwoofer - a much better balance of "speaker-to-sub" power than most 5-channel amps provide. For a high-performance system, you can bridge the amp to 3-channel mode to power your front speakers with 130 watts RMS each, while still driving the sub with 500 watts.
Orders are usually sent out within two business days, and you can expect to receive them within 5-10 business days.
At RYDA, we understand that your order is delivered promptly and with the utmost care; we use Star Track Express and Australia Post with a signature. If no one is home, your delivery will normally be redirected to the Local Australia Post Office for collection over the counter with a Photo ID. Please note that bulky deliveries over 5kg and in a few areas where it is not possible to redirect to the post office, the parcel may be held at the local courier depot instead. Where possible, our warehouse will try and use recycled cartons for our deliveries, just as safe and sturdy as a new carton but more friendly to the environment.
All returned products must be in new condition without damage to any of the packaging and contain all original packaging, manuals, accessories and other documentation as supplied by the manufacturer. If the item is returned in any condition other than new, a restocking fee may be applicable; see below.
OPENED and USED items are subject to approval depending on the condition of the unit and packaging. Any product returned to us that has been trialled, installed, used or demonstrated may be rejected. A minimum of 20% restocking fee applies to refunds and exchanges.
Any product returned with damage to the product, packaging, or removal of any bar code or manufacturer's label will be rejected and returned at the customer's cost.
Any items missing from the returned product will be subject to a replacement charge and deducted from the total refund amount, in addition to a restocking fee.
Return requests for commercial quantities must be approved case-by-case and may be subject to additional conditions.
Goods should be received at the warehouse within 2 weeks from the APPROVED return authorisation unless previously arranged.



