Features & Benefits
- Pure power from a slim, compact chassis
- Designed to fit in more vehicles
- Latest amplifier topology
- Variable electronic crossovers
- High- and low-level inputs for easy interface
- Compatible with advanced driver assistance systems.
- Home Page /
- Electronics /
- Car & Vehicle Electronics /
- Car Electronics /
- Car Audio /
- Amplifiers /
- Multichannel Amplifiers /
- Infinity REF-4555A Reference 5-Channel, 45w X...
0 ratings
Infinity REF-4555A Reference 5-Channel, 45w X 4, 500w X1 Amplifier
0 ratings
Write a review
Out of stock
Imported from USA store
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
New Infinity Reference amplifiers deliver pure power from a slim, compact chassis that’s designed to fit in more vehicles.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
What Stands Out
5-Channel Power
Delivers optimal 45 watts to four channels with a powerful 500 watts for the subwoofer, enhancing the listening experience by driving multiple speaker setups effortlessly.
Compact Design
Designed for space efficiency in vehicles while providing high output; this amplifier fits comfortably in limited spaces without compromising sound quality or performance.
Enhanced Performance
Utilizes advanced circuitry for superior sound clarity and bass response, making it ideal for audiophiles seeking an immersive audio experience with minimal distortion.
Product Details
| Minimum Supply Voltage | 10 Volts |
| Mounting Type | Surface Mount |
| Number of Channels | 5 |
| Output Power | 1800 Watts |
| Package Type Name | cardboard box |
| Item Dimensions | 9.75 x 15.25 x 17 inches (24.8 x 38.7 x 43.2 cm) |
| Manufacturer | Infinity |
| Model | REF-4555A-KL |
| Brand Name | Infinity |
| UPC | 050667370923 |
| Part Number | REF-4555A-KL |
| Item Weight | 10.4 Pounds (4.72 kg) |
| Included Components | REF-4555A-KL |
| Unit Count | 1.0 Count |
| Item dimensions L x W x H | 9.75 x 15.25 x 17 inches (24.8 x 38.7 x 43.2 cm) |
| Brand | Infinity |
| Country of Origin | This item will be imported from US |
| Date First Available | April 09, 2021 |
Who Should Buy?
-
Audio Enthusiasts
Ideal for users seeking high-quality sound and strong performance in multi-channel setups for enriching audio experiences.
-
Home Theater Systems
Perfect for home theater enthusiasts wanting to enhance their audio with powerful amplification and rich sound quality.
-
Car Audiophiles
Great for car audio fans desiring powerful amplification of multiple speakers and a subwoofer for a premium sound system.
-
Budget-Conscious Shoppers
May not be suitable for users looking to stay within a tight budget, as it typically requires a higher investment.
Product Description
Infinity REF-4555A Reference 5-Channel, 45w X 4, 500w X1 Amplifier
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What are the main features of the Infinity REF-4555A amplifier?
Answer: The Infinity REF-4555A is designed with a 5-channel configuration, delivering 45 watts per channel for your front and rear speakers, while providing a robust 500 watts for a subwoofer. This amplifier supports a wide frequency response, ensuring clear highs and powerful lows. Additionally, its compact design allows for versatile installation options in various vehicle types. You can enjoy a rich sound experience, whether you're listening to music or enjoying a movie. -
Question:
How does the Infinity REF-4555A compare to other amplifiers in the same range?
Answer: Compared to similar models, the Infinity REF-4555A stands out due to its combination of power and efficiency. Its high-quality components ensure a clean and dynamic sound output that is above average for its class. Many users appreciate its ability to drive subwoofers without distortion, providing a fuller audio experience. This makes it ideal for both casual listeners and audio enthusiasts seeking to enhance their sound systems. -
Question:
What is the ideal installation setup for the Infinity REF-4555A?
Answer: For optimal performance, the Infinity REF-4555A can be installed in various setups. It works well in vehicles where you want to power both full-range speakers and a subwoofer simultaneously. A common setup includes connecting the four channels to your car's full-range speakers for clear mids and highs, while using the fifth channel exclusively for the subwoofer to achieve deep, resonant bass. Ensure proper wiring and speaker matching to maximize the amplifier’s capabilities. -
Question:
Is the Infinity REF-4555A compatible with aftermarket head units?
Answer: Yes, the Infinity REF-4555A is compatible with most aftermarket head units. Its flexible inputs allow for connection to a wide range of audio sources, whether it's an aftermarket stereo or OEM unit. Users often report that performance improves significantly when paired with high-quality head units, making it a great choice for upgrading system sound. Ensure you check compatibility with your specific head unit for a seamless integration. -
Question:
What type of speakers work best with the Infinity REF-4555A?
Answer: The Infinity REF-4555A pairs well with high-efficiency speakers that can handle the output capabilities of the amplifier. Look for components or coaxial speakers rated close to 45 watts RMS for channel use. Many users find that Infinity's own speakers offer an excellent match, enhancing system coherence and achieving an immersive sound experience. For audiophiles, combining it with a quality subwoofer can further elevate the audio performance. -
Question:
Can I use the Infinity REF-4555A for home audio systems?
Answer: Although the Infinity REF-4555A is primarily designed for automotive use, it can be adapted for home audio systems with the right connections and configuration. Users have successfully integrated it into home setups with passive speakers and subwoofers using compatible input sources. This versatility opens up creative possibilities for enhancing home audio, especially for those looking to achieve a powerful soundstage. -
Question:
What is the ideal power handling for the subwoofer used with this amplifier?
Answer: For the Infinity REF-4555A, it's recommended to pair it with a subwoofer that can handle a minimum of 500 watts RMS. This ensures that you get the full benefit of the amplifier's output capabilities without risk of overdriving your subwoofer. Users often find that this setup allows for deep, impactful bass without sacrificing clarity across the speaker range, supporting a balanced overall sound in various music styles. -
Question:
Does the Infinity REF-4555A come with installation instructions?
Answer: Yes, the Infinity REF-4555A typically includes a set of user-friendly installation instructions in the packaging. These guide you through the basic installation steps, wiring diagrams, and safety tips to ensure a successful setup. Many users benefit from these guidelines, especially first-time installers, as they can significantly reduce the setup time and ensure optimal amplifier performance once connected. -
Question:
What type of inputs does the Infinity REF-4555A support?
Answer: The Infinity REF-4555A supports various input types, including high-level inputs, low-level RCA inputs, and speaker-level connections. This versatility allows it to be integrated with both factory head units and aftermarket stereos. This makes it a popular choice among users looking to upgrade their audio systems without needing extensive modifications. Additionally, the flexibility in input options simplifies the installation process. -
Question:
Where can I buy the Infinity REF-4555A Reference 5-Channel Amplifier?
Answer: You can buy the Infinity REF-4555A Reference 5-Channel Amplifier from Ubuy in Micronesia. Ubuy offers a reliable platform for purchasing electronics and audio equipment, ensuring quality service and support. When shopping at Ubuy, you can also explore additional related products to enhance your audio experience.
Infinity Multichannel Amplifiers Editorial Review
The Infinity REF4555A 760-watt 5-channel Amplifier provides all the punch needed for a great audio experience. It works perfectly with Alpine head units, delivering fantastic sound quality. Highly recommended for its performance.
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Delivers powerful punch
- Works well with Alpine head units
- Fantastic sound quality
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
Currently unavailable.
We don't know when or if this item will be back in stock.
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.