Two Tone / 7 products
PA amplifiers
Power amplifiers, mixer-amps and multi-zone amplifiers.
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1–7 of 7 products
Optimal Audio
Optimal Audio Zone 4P Four-Zone Powered Audio Controller
Four zones with integrated DSP and amplification
The Optimal Audio Zone 4P combines four-zone audio routing, digital signal processing and four integrated amplifier channels in a two-unit rack controller. Each amplifier channel is rated at one hundred watts into four or eight ohms. Bridged operation is specified at two hundred watts into a minimum eight-ohm load or for seventy-volt applications; this is not a native one-hundred-volt output on every channel. Two microphone inputs provide forty-eight-volt phantom power, alongside four stereo line inputs and two HDMI inputs for television or video sound. The browser-based WebApp supports configuration, loudspeaker presets, programmable settings and timed events. Four line outputs allow connections to additional amplification where required. This is the powered Zone 4P rather than the unpowered Zone 4. Compatible loudspeakers, audio sources, network access and any optional ZonePad controllers are separate. Speaker loading and bridged connections must follow the manufacturer installation instructions.
Studiomaster
Studiomaster HX4-600 Power Amplifier
4-channel power amplifier
The Studiomaster HX4-600 is a 4-channel power amplifier for installation, entertainment and rental systems where rack space matters. Its 1U enclosure measures 483 × 44 × 323 mm, allowing it to sit within a compact equipment rack alongside the rest of a sound system. The published output at 4 ohms is 4 x 255W, with separate figures provided for 8-ohm and 2-ohm operation. These figures are rated under EIAJ conditions at 1 kHz and 1% THD, with two channels working simultaneously; they should not be presented as an unspecified continuous all-channel rating. Stereo, parallel and bridge operating modes provide options for configuring a compatible loudspeaker system. Power factor correction is part of the amplifier design, while the manufacturer also identifies operation with loads down to 2 ohms. The model-specific specification lists balanced and unbalanced input impedance figures and protection features. Choose the operating mode and load carefully using the manufacturer’s instructions, rather than treating a bridged rating as the output available from every individual channel. This listing describes one amplifier, not a complete loudspeaker package.
Clever Acoustics
Clever Acoustics MA 4120 MKII Four-Zone Mixer Amplifier
Four independent 120W RMS zones; 480W RMS total
The Clever Acoustics MA 4120 MKII is a rack-mounted installation mixer amplifier with four independently controlled output zones. Each zone has a one-hundred-and-twenty-watt RMS amplifier, giving four hundred and eighty watts RMS in total. Speaker terminals provide four- or eight-ohm low-impedance connections and twenty-five-, seventy- or one-hundred-volt line options. Input channels one to four use XLR and jack combination sockets with microphone, line or forty-eight-volt phantom-power selection; channel five accepts a stereo RCA line source. Inputs can be routed to the required zones, with physical gain, bass, treble and output-level controls. A telephone paging input, priority functions, zone line outputs and local monitoring support commercial installations. This is the MA 4120 MKII model identified by manufacturer code CRAM33, not a network-controlled DSP system. Loudspeakers, microphones and installation cabling are separate. Use only the appropriate output terminals for the connected load and follow the manual for mains selection and installation.
Behringer
Behringer NX6000D PA Power Amplifier with DSP
Two-channel Class D amplifier for passive PA speakers
The Behringer NX6000D is a two-channel Class D power amplifier for driving passive PA speakers from a line-level source. The manufacturer specifies maximum output of 2 × 3,000W at 4Ω or 2 × 1,600W at 8Ω. These are maximum output figures, not continuous or RMS ratings, and the headline power is not available independently from each channel. The NX6000 family does not offer bridged operation or a published 2Ω stereo rating. Built-in DSP supplies crossover filters, parametric and dynamic equalisation, delay and peak limiting. A rear USB Type B connection is for DSP control from a computer, not USB music playback. Two combination XLR and quarter-inch inputs accept line-level signals, while locking speaker outputs connect to suitable passive cabinets. Individual channel gain controls and fan cooling support installation in a two-unit rack. The amplifier weighs 6.0kg and requires mains power. Speakers, a source mixer, rack and speaker cables are separate components, not part of this amplifier listing.
Adastra
Adastra UX240 240W Compact 100V Mixer-Amplifier
240W installation mixer-amplifier
The Adastra UX240 is a compact mixer-amplifier for installed public-address and background-music systems. Its 240-watt output can operate with a 100V line speaker system or a suitable low-impedance load down to two ohms, with the mode selected by a rear-panel DIP switch. Screw terminals provide the speaker connection. A combination jack/XLR microphone input has switchable phantom power and an optional voice-operated priority function, while an RCA line input and front-panel 3.5mm auxiliary connection accept external audio sources. The built-in media player selects USB MP3 playback, DAB+ or FM radio, and Bluetooth audio. Master volume, bass and treble controls allow the output to be adjusted for the installation. The rear panel also provides antenna connections and 24V mute contacts for an external trigger. Supplied mounting brackets support paired half-width units in a one-unit 19-inch rack or flat surface mounting. This is an installation mixer-amplifier, not a stereo two-channel touring amplifier; speaker wiring and output mode must match the intended system. No unsupported phantom voltage, dimensions, weight or complete accessory list is claimed.
Behringer
Behringer NX6000 PA Power Amplifier
Two-channel Class D amplifier for passive PA speakers
The Behringer NX6000 is a two-channel Class D power amplifier for driving passive PA speakers from a line-level source. The manufacturer specifies maximum output of 2 × 3,000W at 4Ω or 2 × 1,600W at 8Ω. These are maximum output figures, not continuous or RMS ratings, and the headline power is not available independently from each channel. The NX6000 family does not offer bridged operation or a published 2Ω stereo rating. An analogue crossover switch selects low-frequency, high-frequency or full-range operation. This non-D model does not have the digital processing, LCD or USB DSP-control connection of the NX6000D. Two combination XLR and quarter-inch inputs accept line-level signals, while locking speaker outputs connect to suitable passive cabinets. Individual channel gain controls and fan cooling support installation in a two-unit rack. The amplifier weighs 5.9kg and requires mains power. Speakers, a source mixer, rack and speaker cables are separate components, not part of this amplifier listing.
Behringer
Behringer NX3000D PA Power Amplifier with DSP
Two-channel Class D amplifier for passive PA speakers
The Behringer NX3000D is a two-channel Class D power amplifier for driving passive PA speakers from a line-level source. The manufacturer specifies maximum output of 2 × 1,500W at 2Ω, 2 × 900W at 4Ω or 2 × 440W at 8Ω. These are maximum output figures, not continuous or RMS ratings, and the headline power is not available independently from each channel. It also supports bridged operation, rated at a maximum of 3,000W into 4Ω or 1,500W into 8Ω. Built-in DSP supplies crossover filters, parametric and dynamic equalisation, delay and peak limiting. A rear USB Type B connection is for DSP control from a computer, not USB music playback. Two combination XLR and quarter-inch inputs accept line-level signals, while locking speaker outputs connect to suitable passive cabinets. Individual channel gain controls and fan cooling support installation in a two-unit rack. The amplifier weighs 3.6kg and requires mains power. Speakers, a source mixer, rack and speaker cables are separate components, not part of this amplifier listing.