US SERIES AMPLIFIERS

THE BEAUTY OF POWER

REAR PANEL CONTROLS (cont.)

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binding posts offer a variety of connection options. Use speaker wires with stripped ends (do not strip them more than ½” or 12.5mm), using the holes on the bottom of the binding posts. Ensure that no part of the speaker wire is exposed when connected to the binding posts. Alternatively, you can also use speaker cables terminated with standard banana plugs. Make sure that no part of speaker wire or banana plugs are exposed when connected to the binding posts.

NOTE: US-Series amplifiers configured for use in Europe are provided with permanent plastic inserts which prevent using banana plugs for speaker connection. This is a safety measure required by European safety laws.

NOTE: In the BRIDGED mode, the loudspeaker must be connected using the two red binding posts. The positive (+) wire from the loudspeaker must be connected to the Channel 1 red post, and negative (-) wire from the loudspeaker must be connected to the Channel 2 red post, as indicated on the rear panel just below the binding posts.

WARNING: NEVER CONNECT speakers with an impedance lower than the rated minimum impedance of the amplifier. The lowest impedance in STEREO and PARALLEL modes is

2 Ohms for each channel. The lowest impedance

in BRIDGED mode is 4 Ohms. NEVER CONNECT 2 Ohms rated loudspeaker(s) or

a combination of speakers to the amplifier in the BRIDGED mode.

NOTE: Refer to the CONNECTIONS section later in this manual for speaker wire connection diagrams.

8.Speakon™ output connectors

Use these speaker outputs to connect cables fitted with Speakon™ cable connectors. US-Series amplifiers have two connectors, one for each channel, to con- nect Speakon™ fitted cables. The 1- pin is connected to the ground. The 1+ pin is connected to the output of each channel, which is an industry standard.

You can connect both channel 1 and channel 2 loudspeakers to the Channel 1 output connector. To do this a quad speaker cable must be used. The Channel 1 speaker should be connected to pins

1-/1+ and the Channel 2 loudspeaker is connected to pins 2-/2+.

You can use the Channel 1 output connector for BRIDGE connection of your loudspeakers (when the amplifier is in BRIDGE mode). In this configuration the loudspeakers connected must use the 2+ pin of the connector for the loudspeaker’s ground connection

(NOT CONNECTED TO THE GROUND OF AMPLI- FIER) and pin 1+ for the speaker’s HOT connection.

12 B-52 US Series Professional Power Amplifiers - Instruction Manual

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ETI Sound Systems, INC US-4000, US-1800, US-1200, US-3000 owner manual Rear Panel Controls, Speakon output connectors
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US-3000, US-4000, US-1800, US-1200 specifications

ETI Sound Systems, INC offers a range of powerful audio solutions designed to meet various sound reinforcement needs. Among their prominent offerings are the US-1200, US-1800, US-3000, and US-4000 models. Each model showcases a blend of advanced technologies and robust characteristics aimed at delivering high-quality sound.

The US-1200 is an entry-level model that makes waves in the audio landscape with its compact design and impressive performance. It features a lightweight cabinet, making it easy to transport and set up for events. The system delivers 1200 watts of peak power, ensuring clear and powerful sound reproduction. It includes a built-in amplifier, meaning users can connect their sound sources directly without needing additional equipment. The US-1200's integrated protection circuitry prevents damage from overloads, ensuring longevity and reliability.

Moving up the line, the US-1800 offers enhanced capabilities, boasting an output of 1800 watts. This model incorporates advanced digital signal processing, allowing for tailored sound adjustments to suit various environments. It features Bluetooth connectivity for wireless audio streaming, providing users the flexibility to play music from devices without the complications of cables. The US-1800 is ideal for mobile DJs and small venues looking for a powerful yet portable solution.

The US-3000 brings even greater power and sophistication to the table with 3000 watts of peak performance. It features advanced crossover technologies, optimizing the sound output across different frequency ranges. This model is designed for larger events, ensuring that every corner of the venue can experience high-quality audio. With multiple input options, including XLR and RCA, the US-3000 can accommodate various audio sources, making it a versatile choice for professional setups.

Lastly, the US-4000 stands as the flagship model in the ETI lineup. It boasts an astonishing 4000 watts of peak power and features cutting-edge audio processing technology. This powerhouse is equipped with a sophisticated feedback elimination system, ensuring clarity even at high volumes. The US-4000 is designed for large-scale events and professional installations, providing unparalleled reliability and sound quality. Its rugged construction is built to withstand the rigors of touring and extensive use.

In summary, ETI Sound Systems, INC has curated a diverse lineup with the US-1200, US-1800, US-3000, and US-4000, catering to different audio needs while incorporating advanced technologies that ensure exceptional sound quality and performance.
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