JBL SA550

The JBL SA550 is inspired by the classic JBL SA600 amplifier from the 1960s. With its retro style and walnut veneer side panels, it will be an aesthetic addition to any interior, but most importantly, it fits perfectly with the design of the iconic JBL Premium Classic speakers. However, the exterior vintage impression is only deceiving, because inside are the latest advanced technologies. The possibilities of using this amplifier are very wide thanks to the built-in DAC and wireless streaming capability via Bluetooth. The SA750 amplifier draws on JBL's experience as one of the most successful audio companies in the world. It uses the highest quality components and technology and is designed to deliver the ultimate musical experience.

Key Features of the JBL SA550 HiFi Amplifier

Amplifier topology

With Class A hi-fi amplifiers, the traditional choice of audiophiles, we encounter two common problems. The single power supply used here operates continuously at full power, even when no signal is passing through. This results in low efficiency, high energy consumption and significant heating. Class A is great for reproducing the finest detail at low power (1-2 watts), but can struggle if you need a spike in power. Class A/B is the most commonly used class of amplifiers today. It has the advantage of a high power reserve and a lower price. It is effective, but as a result, this topology fails to properly present all the fine details that are the spirit of the music and that the listener appreciates, due to unwanted transient distortion that occurs at very low power levels. Class G is essentially a hybrid amplifier that uses Class A specifically for low-level signals, but turns on additional power for the higher parts of the power curve when needed. A significant portion of the curve is thus presented in Class A with undistorted finest detail and excellent microdynamics, while retaining the speed, accuracy and power reserve for perfect presentation of every musical genre.

Class G - the best of the options

With Class-G amplifier technology, the SA550 delivers perfect sound at all times. The amplifier offers a solid 2 x 90 W at 8 Ω (2 x 150 at 4 Ω), with the first 10 W of potential power delivered in pure Class A. Only in the event of an immediate need for higher output does the amplifier move to Class B, ensuring proper presentation of dynamic and power peaks. The result is a powerfully musical sound with Class A refinement and Class B dynamic capabilities. The G-Class offers high efficiency, low distortion and improved dynamic range, making it the ideal choice for audiophiles who demand the highest level of sound quality.

ESS 9038K2M DAC digital inputs for superior sound quality

While Class G amplifiers handle analog signal processing, the Sabre ESS 9038K2M high-end DAC gets the most out of your digital sources. Once you connect the digital source to the SA550, you get excellent presentation and a much more open sound with strong dynamics thanks to the integrated audiophile converter. Two coaxial digital inputs and one optical input allow you to connect up to three sources such as CD/SACD players, TV, etc.

Input for MM (or MC high output) phono cartridge

The SA550 is not only excellent in digital technology, but you can also use it very well to connect up to 4 analogue sources including a turntable. In addition to three line-level inputs, it also has a built-in phono preamplifier suitable for MM or MC high output cartridges. Unlike many other integrated phono preamps that merely add connectivity, the SA550 uses a carefully engineered audiophile-grade preamp with minimal noise and high transparency. This is a high quality component designed to fully satisfy even the most demanding vinyl lovers.

Bluetooth aptX with Adaptive technology

Many users will appreciate the ability to wirelessly stream music files from mobile phones, computers or tablets. Thanks to the built-in Bluetooth receiver with aptX Adaptive technology, support for high-resolution file streaming is ensured. The aptX Adaptive codec can even adapt perfectly to the music content the user is listening to. It will behave differently when listening to your favourite music from Spotify and react differently to audio connections, e.g. when playing video games.

Stylish audio system

Whether you're streaming audio from a mobile device, listening to a CD or a turntable, you can enjoy an immersive music experience with a range of JBL CLASSIC components. When configured with the JBL Classic speakers, the SA550 and SA750 amplifiers, MP350 streamer, CD350 CD player and TT350 turntable will blend perfectly with each other thanks to their vintage design and create an aesthetic and consistent whole in the interior.