RUPERT NEVE DESIGNS 545 (500 Series Primary Source Enhancer) (API 500 Series) [Official Japanese Product]

*To use this product, you will need a separate power supply dedicated to the 500 series, such as the LUNCHBOX 500-6B-HC.
*Delivery of this product may take approximately 2 weeks to 1 month.


★545 - 500 Series Primary Source Enhancer

With the world's most natural feedback reduction and the ability to focus on the main source, the 545 is a truly unique tool for improving your live sound.

Based on the circuitry of the Portico 5045, acclaimed in countless tours, arenas, houses of worship, and broadcast environments, the 545 is a mono device compatible with 500 series modules, ideal for vocals and instruments. It effectively boosts live microphone signal levels by up to 20dB while suppressing feedback without adversely affecting the source's sound quality. With a simple layout and easy operation, the 545 is an invaluable tool in any situation where feedback or reverberation is a problem.

●All analog design
The 545 shares some characteristics with traditional "noise gates," but operates on a different principle. One common aspect is that they reduce gain when there is no input signal. Specifically, attenuation begins once the signal level drops below a user-defined threshold. When the 545 detects a voice singing or speaking into the microphone, the signal passes; when it detects the absence of input, it appropriately reduces gain, eliminating elements that could lead to feedback.

It's important to remember that the 545 achieves these significant benefits without using filtering or digital processing. Its all-analog circuitry, built around custom input and output transformers by Rupert Neve Designs, offers superior control and sonic character without compromising the integrity of the material. The unparalleled intuitive and natural sound of the 545 makes it an extremely effective solution for feedback reduction.

●Simple and intuitive operation
The 545's appeal lies in its ease of use. Controls are kept to a minimum, with just a few knobs and switches, making it easy to operate even in situations where you don't have an experienced engineer on hand. Adjustments can be made instantly, even during a performance.

■Features◎Engage - An illuminated push button for turning the Engage Primary Source Enhancer effect on/off.

Active: This LED lights up when the input signal to the 545 exceeds the enhancement threshold. This is a very useful indicator when setting up the 545, as it will light up when the source you want as your main (such as a vocal) is passing through.

Threshold - Sets the dBu level at which the Primary Source Enhancer begins to have an effect.

Depth: Adjusting this knob sets the maximum amount of effect the 545 will have. In other words, it determines how much the input signal will be attenuated after it falls below the threshold. As you turn the DEPTH knob clockwise from 0dB to -20dB, the input signal will be attenuated more dramatically. Find the right balance between the perceived effectiveness of primary source enhancement and feedback reduction.

FAST - An illuminated pushbutton selects between two time constants. It determines how quickly attenuation occurs as the incoming word or phrase ends and becomes quieter. With the FAST button depressed, the 545 offers a slower attack and release - a setting that will serve as a good starting point in most situations. Pressing the button, on the other hand, provides faster attack and release times - this setting is useful for dynamic sources or passages where faster transient detection is required.

◎Peak
An illuminated pushbutton selects either RMS or Peak Detect mode. When lit, the 545 is in PEAK mode, which detects faster transient peaks and is useful for shaping dynamic envelopes. When unlit, the 545 is in RMS mode, which provides a slower, more averaged response in the sidechain.

■Technical specifications●Maximum input/output level
+24 dBu

●THD+N (Total Harmonic Distortion)
1 kHz, +20 dBu output level, no load
0.001% or less

20 Hz, +20 dBu output level, no load
0.1% Typical (2nd and 3rd harmonics)

Noise
(unweighted, 22 Hz to 22 kHz, 40 Ω balanced source)
Below -100 dBu @ Primary Source Enhancer Bypass

Frequency response (using a 30-foot cable for output)
+/-0.25 dB @ 30 Hz to 58 kHz
-3 dB @ 18.5 Hz

Threshold
-18 dB to +12 dB (continuously variable)

Depth
0 dB to -20 dB (continuously variable)

Attack and release in time constant/RMS mode
Slow 100 mS
Fast 200 mS
・Attack in PEAK mode (fixed)
20 mS
release
Slow 1 S
Fast 200 mS

●Power supply
Supplied by 500 Series rack, 80 mA @ ±16V DC