Master LED-DISPLAY, PFL Master | Electro-Voice PSX1600, PSX1000

MASTER

The frequency ranges and the characteristics of the of the equalizer were carefully chosen for live sound. If you want a clear and intelligible sound, which also provides cymbals and other instruments with added high frequency detail, you should raise the levels of the 8kHz or 16kHz bands a bit. If the mids sound too nasal, you should attenuate the 1 kHz and 2.5 kHz frequencies a few decibels. To provide the kick drum or other bass instruments with more punch, you have to boost the low frequency range, using the 80Hz or the 250Hz controls. In case the overall sound is undefined with too much bass, lowering the levels of these two frequency bands will solve the problem.

When using the equalizer, you should be aware of the fact that in most cases less adjustments (especially boosting) provides better results. Thus, your first choice should be to establish the mix using only the input channel EQs tosee if you can get satisfactory results. If so, you can use the graphic EQ for the AUX3 (monitor), where in most cases it is more needed. You will find the description of how to include the graphic EQ in the monitor bus later in this owner’s manual.

58. MASTER LED-DISPLAY

The PSX offers two 10-segment LED ladders to monitor the output levels of the L/R master signals. The indication range of the LED-meter is 33dB, displaying the levels in dBu which are present at the EQ OUTPUT and the POWER AMP INPUT. The meter’s 0dB mark is referenced to a 0dBu output signal at the POWER AMP INPUT. Increasing this level leads to the power amplifier’s maximum input level of +6dB – equaling an output power of 500 watts at 4 ohms per channel. Higher levels are not displayed, since the amplifier’s processor limits the signal at this point. When the LIMIT LED of the status indicator section lights, this shows that the internal limiter is activated.

59. PFL MASTER

When the master PFLbutton is engaged, the PRE FADER stereo master signal is routed to the headphones output. The volume of this signal is not affected by the setting of the MASTER faders.

60. MASTER L + R

Level controls to adjust the output signals of the left and right main outputs (MASTER).

Please make sure that the corresponding input channel fader or the master faders are set to their minimum position or the STANDBY switch is engaged, before connecting an external source to an input of the PSX. This will save you, your audience, and speakers from unnecessary stress.

POWER AMPLIFIER

The PSX’s PROCESSOR-CONTROLLED stereo power amplifier’s design uses bipolar out- put devices to provide a nominal output power of 500 watts at 4 ohms per channel. The minimal load impedance of 2.7 ohms allows the operation with a maximum of three paralleled 8 ohm loudspeakers connected to each channel. Their low distortion provides the amplifier of the PSX with outstanding sound quality that welcomes comparisons with the best profes- sional high-end, stand-alone audio power amplifiers.

The amplifier is also designed to handle the wear and tear of touring operation. It incorporates protection against thermal overload, short circuit, HF-interference or the occurrence of DC at the outputs. Further protection against dangerous back-EMF is provided by a special circuit. When the PSX is switched on, a relais control switching on of the power outputs. The internal fans run shortly on full speed, signaling acoustically that the PSX is operational. A limiter controls the initial current inrush, preventing the mains fuse from being blown during power- on.

The extensive comparator circuitry constantly monitors the input and output signals and activates the internal limiters whenever a non-linear operational state is encountered. This provides reliable protection of the connected loudspeaker systems against overload and clipping. Even when the maximum input level is overridden, no distortion is heard on the speaker outputs. The amplifier also incorporates EVI Audio-patented processors to eliminate transient problems of typical sound reinforcement speaker systems and provides extraordi- narily precise and powerful reproduction of low frequencies.

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PSX1600, PSX1000, PSX2200 specifications

Electro-Voice, a prominent name in professional audio equipment, has developed a series of high-performance power amplifiers known as the PSX series, which includes the PSX2200, PSX1000, and PSX1600 models. These amplifiers are engineered to deliver exceptional power, clarity, and reliability, making them suitable for a variety of applications such as live sound, installations, and portable use.

The PSX2200 is the most powerful model in the PSX lineup, offering a robust output of 2,200 watts at 4 ohms. This amplifier is designed to handle demanding audio environments, providing headroom and performance necessary for large audiences. One of its key features is the Peak х-Over Limiting technology, which ensures that the amplifier delivers maximum power without distortion during peak performance. Additionally, the PSX2200 is equipped with built-in high-pass and low-pass filters, allowing users to tailor the sound to their specific needs.

The PSX1000 represents a mid-range option that still packs a punch, delivering 1,000 watts at 4 ohms. It is designed for versatility, making it ideal for a range of sound reinforcement applications. One standout feature of the PSX1000 is its Intelligent Clip Limiting system, which automatically adjusts the input signal to prevent clipping and maintain audio clarity. Moreover, the amplifier features a rugged chassis and intuitive interface, which enhances both durability and ease of use in various settings.

The PSX1600 serves as a bridge between the PSX1000 and PSX2200, offering 1,600 watts at 4 ohms. It incorporates advanced thermal management technology, ensuring stable performance even under demanding conditions. The PSX1600 is engineered for reliability, featuring extensive protection circuitry that safeguards against issues like over-temperature, short circuits, and signal overloads. This amplifier is particularly favored for its ability to maintain sound quality during prolonged use.

All three models in the PSX series share common characteristics such as a lightweight design, durable construction, and efficient power supply systems, making them highly portable and easy to integrate into existing sound systems. The PSX amplifiers are also equipped with comprehensive monitoring capabilities, including LED indicators that provide visual feedback on power and operational status.

In summary, the Electro-Voice PSX2200, PSX1000, and PSX1600 represent a powerful trio of amplifiers that offer versatility and reliability for professional audio applications. With their advanced technologies, user-friendly features, and impressive performance specifications, these amplifiers are well-suited to meet the demands of sound engineers and audio professionals alike.