Fohhn MA-4.100 Amplifier
Purchase price
The Fohhn MA-4.100 is a versatile tool for professionals, offering powerful output, high energy efficiency, and reliability. Its flexibility and advanced protection features make it the ideal solution for large-scale sound systems requiring outstanding audio quality and long-term stability.
Subcategory: Fohhn
Fohhn MA-4.100 – Multi-Channel High-Power Amplifier for Large-Scale Audio Installations
The Fohhn MA-4.100 is a professional, four-channel Class D power amplifier designed for use in extensive sound systems in various environments such as concert halls, theaters, churches, conference centers, music clubs, and other venues requiring flexible and reliable audio reinforcement. The MA-4.100 is known for its exceptional energy efficiency and high power, making it an ideal choice for professional applications where precise sound control and long-term reliability are crucial.
The Fohhn MA-4.100 delivers 4 x 1000 W RMS power at 4 Ohms, providing flexible usage in different sound system configurations. This amplifier is equipped with modern protection features, including overload, short circuit, and thermal protection, ensuring stable operation even in demanding conditions. Its cooling system is intelligently managed, actively monitoring the temperature to prevent overheating.
With the ability to bridge channels, the MA-4.100 offers maximum flexibility and allows you to tailor the power output to suit specific installation needs. Additionally, the amplifier includes balanced XLR inputs and Speakon and binding post outputs, making it easy to integrate into professional sound systems.
| Description | Value |
| Type | Four-channel Class D amplifier |
| Applications | Concert halls, theaters, churches, conference centers, music clubs |
| Power Handling | 4 x 1000 W RMS at 4 Ohm |
| Bridging | Yes, channel bridging capability |
| Frequency Response | 20 Hz – 20 kHz |
| THD | < 0.05% (at full power) |
| Protection | Overload, short circuit, thermal |
| Cooling | Active, temperature-controlled |
| Inputs | Balanced XLR |
| Outputs | Speakon, binding post terminals |
| Power Supply | 230 V AC |
| Dimensions | 88 x 482 x 450 mm (2U, 19″ rack-mount) |
| Weight | Approximately 13 kg |
Fohhn Audio AG is a respected German professional sound reinforcement manufacturer, founded in 1993 in Nürtingen near Stuttgart. The company is known for innovative audio solutions deployed in the most demanding installations worldwide — from opera houses and concert halls, through congress centres, to sports and sacred venues. All Fohhn products are manufactured in Germany, with ISO 9001 and ISO 14001 certification.
The MA-4.100 is the flagship power amplifier in the MA series, offering an impressive 4 × 1000 W RMS at 4 Ohm. Designed to drive the most demanding Fohhn speakers — including the powerful XT series models — the MA-4.100 combines enormous output power with advanced Class D technology, ensuring high energy efficiency and minimal heat generation. Channel bridging capability provides even greater flexibility in sound system design.
The amplifier features a comprehensive protection system — overload, short-circuit, and overheat protection — along with intelligent temperature-controlled cooling that ensures quiet, stable operation even during multi-hour sessions at full load. The 19″ rack-mount enclosure (2U) with professional XLR and Speakon connectors enables fast, reliable integration with professional sound systems.
The MA-4.100 is the ideal partner for Fohhn XT series speakers — including the flagship XT-33 — and XS series subwoofers. Through precise matching of power, impedance, and frequency response parameters, pairing the MA-4.100 amplifier with Fohhn speakers creates a fully optimised sound system, guaranteeing the highest sound quality and reliability in critical professional applications.
