AD-551XLS Compression Driver – High-Output Precision

The AD-551XLS Compression Driver – High-Output Precision is a robust and high-efficiency 1-inch throat compression driver, designed to deliver powerful, detailed, and reliable high-frequency performance across a wide range of professional audio applications. Whether you’re building a premium PA system, configuring line arrays, or upgrading your stage monitoring setup, the AD-551XLS offers the clarity, control, and durability that professionals demand.

At its core, the AD-551XLS is powered by a 51.3mm (2-inch) copper-clad aluminum (CCAW) voice coil as can be seen This component offers excellent thermal conductivity and high efficiency. It ensures stable, distortion-free output even at high volume levels. The AD-551XLS supports 100W RMS power and up to 200W program power, making it ideal for demanding sound reinforcement tasks. Its 108 ± 2dB sensitivity rating delivers strong output with minimal power input—perfect for large venues and high-SPL environments.

The frequency response range of 800Hz to 16,000Hz covers a broad high-frequency spectrum. This allows the AD-551XLS to reproduce vocals, instruments, and effects with precision and accuracy.

Whether you’re pushing mids or crisp treble content, it delivers with confidence.

The AD-551XLS features a 25mm (1-inch) throat diameter and a screw-on mounting type, allowing for easy integration with various horn flares and enclosures. It has an overall diameter of 134mm and weighs 2.7 kg. This offers a stable, solid structure while keeping the weight manageable for both portable and fixed sound systems.

A major highlight of the AD-551XLS is its composite diaphragm, engineered to balance strength, responsiveness, and fatigue resistance. This material helps maintain sonic consistency over time, even in high-demand applications. Paired with a Strontium Ferrite Y35 magnet, the driver generates strong magnetic flux for enhanced sensitivity and dynamic range.

Available in 8Ω and 6.5Ω impedance options, the AD-551XLS gives system designers flexibility in configuration and amplifier matching.

FAQ Section

1. What are the sound advantages of the composite diaphragm in the Audiotone AD-551XLS-2?

The composite diaphragm design balances mechanical strength with internal acoustic damping. This suppresses harsh breakup modes and resonance at high volumes, delivering smooth, natural vocals and pleasant, fatigue-free high frequencies across its 800Hz to 16000Hz response range.

2. How does the 100W RMS power handling impact overall system output?

With a 100W RMS power capacity and an efficiency rating of 108 dB sensitivity, the AD-551XLS-2 generates powerful, high-impact treble. It provides extra dynamic headroom in high-output PA tops and stage monitors, ensuring vocal projection remains clear without distortion during peak performance levels.

3. What horn lens mounting style is required for this compression driver?

Featuring a standard 25mm (1-inch) throat diameter, this driver utilizes a screw-on mounting system. It threads directly onto standard 1-inch screw-mount horn flares, making installation straightforward for both custom loudspeaker builds and driver upgrades.

4. What crossover frequency setting is recommended to safeguard the voice coil?

Given its wide operational bandwidth starting from 800Hz, pairing the driver with a passive or active crossover set between 1.2 kHz and 1.8 kHz (with an 18dB or 24dB/octave attenuation slope) shields the 51.3mm (2-inch) CCAW voice coil from unwanted low-frequency signals.

5. How can I view detailed specifications or locate dealers for the Audiotone AD-551XLS-2?

Full product specifications can be found on the official Audiotone AD-551XLS-2 Product Page. For regional dealer contacts, pricing quotes, or product inquiries, please submit a request through the inquiry form on the website.