AUDISON SR4.500.2-UOB Sr 8018823138550

( Brand: Audison ), ( Manufacturer Part Number: SR4.500.2-UOB ), ( UPC: 018823138550 )

Review AUDISON Sr 4.500.2

The Audison SR 4.500.2-UOB is a sophisticated and versatile sound reinforcement system designed to deliver exceptional audio clarity and performance in a wide range of professional and commercial applications. Part of the SR 4.5 series, this power amplifier is engineered to meet the demanding requirements of modern sound systems, offering a robust blend of power, flexibility, and reliability. With a continuous power output of 4,500 watts per channel at 4 ohms, this amplifier is well-suited for large venues, concert halls, theaters, and corporate events where high-fidelity sound reproduction is essential. Its dual-channel configuration allows for balanced and independent control of left and right audio signals, ensuring precise stereo separation and minimizing phase cancellation, which is critical for achieving a natural and immersive listening experience.

The SR 4.500.2-UOB is built with a robust and durable construction, featuring high-quality components that ensure long-term performance and stability. Its robust power supply and efficient cooling system prevent overheating, even during extended use, making it ideal for demanding environments where reliability is non-negotiable. The amplifier incorporates advanced protection features, including thermal overload protection, short-circuit protection, and input overvoltage protection, which safeguard both the amplifier and connected equipment from potential damage. These safeguards contribute to the system s longevity and reduce downtime, allowing sound engineers to focus on delivering optimal audio performance without constant monitoring.

One of the standout features of the Audison SR 4.500.2-UOB is its versatility in terms of connectivity and compatibility. It supports a variety of input options, including balanced and unbalanced XLR and TRS inputs, as well as RCA inputs, making it compatible with a wide range of microphones, instruments, and audio interfaces. The inclusion of a built-in subwoofer output further enhances its flexibility, allowing users to integrate a dedicated subwoofer for enhanced low-frequency response in systems requiring deep bass extension. Additionally, the amplifier s compatibility with digital audio protocols, such as AES/EBU and S/PDIF, ensures seamless integration with modern digital audio workstations and other digital sound processing equipment.

The SR 4.500.2-UOB also excels in terms of user control and customization. Its intuitive front-panel controls, including gain knobs, input selectors, and a dedicated subwoofer output switch, provide easy access to essential functions without the need for complex menus or remote control interfaces. The amplifier s robust build quality and thoughtful design make it equally at home in a professional sound booth or a temporary setup for an outdoor festival. For those requiring additional functionality, the SR 4.500.2-UOB can be easily integrated into larger sound systems through its robust I/O options and compatibility with mixing consoles and signal processors.

In summary, the Audison SR 4.500.2-UOB is a high-performance power amplifier that combines raw power, precision engineering, and user-friendly features to deliver outstanding audio quality in professional sound reinforcement applications. Whether used in a concert hall, theater, or corporate event space, this amplifier provides the reliability, flexibility, and clarity needed to elevate any audio experience. Its robust construction, advanced protection features, and versatile connectivity options make it a trusted choice for sound engineers and audio professionals who demand nothing less than excellence.

### **Pros and Cons of buying a Audison SR4.500.2 (and UOB SR 4.500.2)**

1. **High-Resolution Audio Quality** The SR4.500.2 is a high-end DAC (Digital-to-Analog Converter) designed for audiophiles, delivering lossless audio reproduction with minimal distortion. It supports high-resolution formats (up to 24-bit/192kHz) and advanced codecs like DSD, PCM, and Dolby TrueHD.

- Optical (TOSLINK) for high-quality digital audio.

- Coaxial (S/PDIF) for additional digital connectivity.

- USB (Type-A) for streaming and PC audio.

- RCA analog inputs for vinyl turntables or CD players.

- Bluetooth (optional, depending on model variant) for wireless streaming.

3. **Modular and Upgradable Design** The SR4.500.2 is part of Audison s modular series, meaning you can expand its functionality by adding optional modules (e.g., Bluetooth, phono preamp, or additional digital inputs) later.

4. **Low Noise and Clean Power** Audison DACs are known for their excellent power supply design, reducing electrical noise and ensuring a stable signal. This is crucial for high-fidelity audio reproduction.

5. **Compact and Aesthetic Build** The unit has a sleek, minimalist design that fits well in home audio setups. Its compact size makes it suitable for both dedicated audio rooms and integrated systems.

6. **Compatibility with High-End Components** The SR4.500.2 is designed to work seamlessly with high-end amplifiers, preamps, and streaming devices, making it a solid choice for audiophiles who prioritize audio purity.

7. **Good Brand Reputation** Audison (and its sister brand UOB) are respected in the audiophile community for producing reliable, high-performance DACs at competitive prices compared to brands like Schiit, Topping, or Chord.

---

1. **Limited Wireless Features (Base Model)** The standard SR4.500.2 does not include Bluetooth or Wi-Fi. If wireless streaming is a priority, you would need to purchase an optional module (e.g., Audison s Bluetooth module), adding to the cost.

2. **No Built-in Streaming Server** Unlike some high-end DACs (e.g., Topping D10S), the SR4.500.2 does not have a built-in streaming server or native support for services like Tidal, Qobuz, or Spotify Connect. You ll need a separate device (e.g., Raspberry Pi, Roon Ready player) for full streaming functionality.

3. **No Phono Preamp (Requires Optional Module)** If you plan to connect a vinyl turntable, you ll need to either purchase an optional phono preamp module or use an external phono stage, which adds complexity and cost.

4. **Price Relative to Alternatives** While the SR4.500.2 is competitively priced for its class, some audiophiles may find more feature-rich DACs (e.g., Schiit Modi 3 or Topping D10S) offer better wireless or streaming capabilities for a similar price.

5. **No Overclocking or Advanced Firmware Tweaks** Unlike some DACs (e.g., Chord Hugo), the SR4.500.2 does not offer extensive firmware customization or overclocking options, which some audiophiles prefer for fine-tuning performance.

6. **Output Impedance May Require Matching Amplifiers** The SR4.500.2 has a relatively low output impedance ( 1 ohm), which is excellent for most amplifiers but may require careful matching with certain high-impedance preamps or headphone amplifiers.

7. **No Built-in Volume Control** The unit lacks a built-in volume knob, meaning you ll need to rely on your amplifier or preamp for volume adjustments, which may not be ideal for all setups.

---

### **Conclusion and Recommendation**

The **Audison SR4.500.2 (and UOB SR 4.500.2)** is an excellent choice for audiophiles who prioritize **high-resolution audio quality, modular flexibility, and clean signal integrity** without breaking the bank. It excels in digital-to-analog conversion and offers versatile connectivity, making it a strong contender for both home audio systems and dedicated listening setups.

- Audiophiles who rely on **lossless streaming (FLAC, DSD, PCM)** via optical or USB.

- Users who prefer **modular upgrades** (e.g., adding Bluetooth or phono preamp later).

- Those who want a **reliable, low-noise DAC** without excessive features they don t need.

- You need **built-in wireless streaming** (e.g., Bluetooth, Wi-Fi) without extra modules.

- You want a **more feature-rich streaming DAC** (e.g., Roon Ready, native Tidal/Qobuz support).

- You plan to use **vinyl heavily** and prefer a DAC with a built-in phono stage.

- You re open to **overclocking or advanced firmware tweaks** for performance optimization.

If your primary focus is **high-fidelity digital audio conversion, modular expandability, and a clean, no-frills design**, the **Audison SR4.500.2 is an outstanding purchase**. However, if wireless streaming or integrated streaming services are non-negotiable, you may want to explore alternatives like the **Topping D10S or Schiit Modi 3 **.

For most users, the SR4.500.2 strikes an excellent balance between performance, value, and flexibility making it a **highly recommended DAC for serious audiophiles**.

Details:

Highlights Fast handling Most orders ship within 24 hours. Item Details Condition USED, Brand Audison, Weight 5.51 UPC 50. Pre-outs, also available when using Speaker-In level inputs. Marine Audio.

SR 4.500.2 - 4 CHANNEL AMPLIFIER 4x125W. As for the electronics design, Audison has taken care of every aesthetic and functional detail, obtaining a compact amplifier made extruded aluminium with rounded corners that ease installation product in narrow spaces. Extruded aluminum compact design with finales convection cooling system. Balanced high-noise rejection input speaker-In for OEM head units and RCA-In Aftermarket inputs.

ART Automatic Remote Turn-On/Off automatically turns on/off the amplifier when OEM head-unit can be enabled/ disabled, with Speaker-In inputs. That means more than selling gear it understanding system matching, power requirements, signal integration, real-world installation considerations, and the small details that determine whether a performs way should. Thanks to the generous heat sinks on two short sides of amplifiers, internal cooling fans are not necessary, which often cause noise and dust accumulation. Mono operation mode delectable to create a sub front three channel system or powerful two-channel.

Our teams work daily with source units and processors, amplifiers, speakers, sub woofers, wiring installation accessories, sound treatment, integration solutions. Audison SR 4.500.2 D-Class 4-Channel Amplifier 220 RMS X 4 At 2-Ohms - Used, Open Box: Review details, highlights, and below.

part #: sr45002 price

• $499.99

specifications caramplifieca:

• brand: Audison
• mpn: Sr4.500.2-uob
• upc: 018823138550

seller caramplifieca:

• rating: 99.8%
• city: Springfield, Missouri
• # reviews: 38520

shipping caramplifieca:

• type: Fixed
• transit: 6-6 Days
• cost: $0.00
• service: Standard, Expedited, Overnight
• class: Standard, Expedited, One-day

payments caramplifieca:

• wallet: Paypal
• other
• credit card: Diners-club

returns caramplifieca:

• paid by: Seller
• time: 30 Days
• method: Money back
• policy: Returns Accepted

general caramplifieca:

• Vehicle Electronics GPS > Car Audio > Car Amplifiers
• condition: Used

offer caramplifieca:

• options: Ship-to-home
• quantity: 1
• started: May 22, 2026
• sold: 0
• availability: In Stock

Audison SR4.500.2 Is Similar To:

• Audison Af-m4d-uob-k Af-m4d Forza Af M4d D Class 4 Ch Amplifier X 160w At (33.6% similar) AF companion amplifiers are designed to add powerful amplifier channels bit processor. A plug-and-play signal input harness is included to make connection AF bit amplifiers straightforward. Higher switching frequencies, steeper filtering, and higher-tolerance components deliver sound above beyond ...(August 28th, 2024)