ETI Sound Systems, INC Limiter switch US-3000 and US-4000 models only, Binding Post outputs

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THE BEAUTY OF POWER

US SERIES AMPLIFIERS

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5.LIMITER switch (US-3000 and US-4000 models only)

When the sound source signal is too high, the out- put signal will distort. To prevent this, both channels feature clip limiters to prevent gross distortions on the outputs. It is recommended to avoid clipping but if

it does occur, the clip limiters will greatly reduce the amount of distortion and stress on your speakers and amplifier. It is recommended to keep these switches in the ON position as this will result in better sound and increase the life of your loudspeakers.

NOTE: The US-1200 and US-1800 amplifiers have built-in limiters that are permanently engaged for constant protection and optimal performance.

6.BRIDGE / STEREO / PARALLEL switch Use this switch to change the amplifier’s operating mode to STEREO, BRIDGED MONO or PARALLEL MONO. Set this switch to the STEREO position for normal stereo, or 2-channel operation.

When set to PARALLEL, the input signal connected to channel 1 is routed to both channels. The PARALLEL MONO mode is convenient when running a long

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mono signal cable to a remote power amplifier(s), and then connecting speakers to both of the channels in order to reproduce the same signal. In PARALLEL mode the input of channel 2 is inactive and should not be used in this configuration.

In the BRIDGED position, the mono input signal con- nected to channel 1 is routed to both the right and left amplifier channels, yet in this mode the speaker is connected between the two channels’ hot outputs and is not referenced to the ground. In this mode the chan- nel 2 input is inactive.

NOTE: See the CONNECTIONS section later in this manual for more details on PARALLEL MONO and BRIDGED MONO modes. WARNING: DO NOT switch to PARALLEL MONO or BRIDGED MONO unless you have read and understood these connections and their limitations as described later in this manual.

7.Binding Post outputs

Use the binding posts to connect your loudspeakers to the amplifier. Binding posts are a good option for fixed installations or when you do not have Speakon- fitted speaker cables. The high-quality insulated

B-52 US Series Professional Power Amplifiers - Instruction Manual 11

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Contents US-1200 US-1800 US-3000 US-4000 Contents Welcome to the B-52 Family Unpacking and InstallationWHAT’S the Meaning of THIS? Important InformationImportant Safety Precautions US-1200 US-1800 US-3000 Power Ratings AT a GlanceAmplifier Features Blue illuminated strips Signal IndicatorsClip Indicators Front Panel ControlsAC Power Switch Protect IndicatorsRear Panel Controls Input connectorsLink connectors HPF High Pass Filter switchBinding Post outputs Limiter switch US-3000 and US-4000 models onlyRear Panel Controls Speakon output connectorsAC input ProtectionCircuit breaker Clip Limiters US-Series amplifiers have built Setting UP Your US-SERIES Amplifier Bridged Mono Mode Stereo ModeParallel Mode Connecting Your Speakers SPK- to PIN Wiring US-1200 US-1800 US-3000 US-4000 SpecificationsIncidental or Consequential Damages Limited WarrantyBeauty of Power Beauty of Power Professional

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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