Operating Manual - PQX 571 and PQX 572 Parametric Equalizer

10.SPECIFICATIONS

(0 dBu = 0.775 volts rms, Balanced input)

10.1Master Gain Level:

±15dB

10.2 Peak Filter Amplitude:

±15dB

10.3Peak Filter Frequency Range

Range Switch Out

200Hz - 20KHz

Range Switch In:

20Hz - 2KHz

10.4Peak Filter Bandwidth:

3 1/3 - 1/20 octave

10.5Shelving Filter Frequency Ranges (At midpoint of shelving slope)

Low:40Hz - 400Hz

High:1.6KHz - 16KHz

10.6Shelving Filter Amplitude:

(At flat portion of shelving response)

±15dB

10.7Input Impedance:

20KΩ active balanced

10KΩ unbalanced

10.8Output Impedance: (Terminate with 600Ω or more)

200Ω balanced

100Ω unbalanced

10.9Maximum Input Level: All filters in

All level controls at unity gain

+23dBu

One peak filter at max boost Bandwidth control .3 octave or greater

+7dBu

10.10Frequency Response:

20Hz - 20KHz ±.2dB

10.11Distortion:

(THD, +4dBu, 20Hz - 20KHz) < .03%

10.12Hum and Noise:

(20Hz - 20KHz, unweighted, all controls at unity gain)

EQ Out

-109dBu

EQ In, peaking filters in

-93dBu

EQ In, peaking and

 

shelving filters in

-90dBu

10.13Power Requirements: (240 VAC Available) 94 - 130VAC 50-60Hz

10.14Power Consumption:

15W

10.14Size:

PQX 571: 19"L x 1.75"H x 6"D

PQX 572: 19"L x 3.5"H x 6"D

10.15Shipping Weight

PQX 571:

8 lbs.

PQX 572:

10 lbs.

11.WARRANTY INFORMATION

We thank you for your expression of confidence in Ashly products. The unit you have just purchased is protected by a full five year warranty. To establish the warranty, be sure to fill out and mail the warranty card attached to your product.

Please fill out the information below for your records, and have it ready should you need to contact ASHLY or one of its dealers.

Model Number _________________________________

Serial Number _________________________________

Dealer ________________________________________

Date of Purchase _______________________________

Dealer’s Address _______________________________

______________________________________________

Dealer’s Phone _________________________________

Salesperson ____________________________________

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Ashly PQX-571, PQX-572 manual Specifications, Warranty Information

PQX-571, PQX-572 specifications

The Ashly PQX-572 and PQX-571 are advanced audio processing devices designed to enhance sound quality in professional audio applications. Known for their exceptional performance and reliability, these two models are vital tools for sound engineers and audio professionals. Both devices integrate cutting-edge technologies that enable them to deliver superior sonic precision.

Starting with the Ashly PQX-572, this model serves as a 2-channel parametric equalizer that offers extensive control over audio frequencies. One of its standout features is the adjustable Q factor, which allows users to fine-tune the bandwidth of each frequency band. This feature enables precise adjustments, making it easier to eliminate unwanted resonances or enhance desirable frequencies. The PQX-572 also incorporates 20 Hz to 20 kHz frequency ranges, which ensure that audio processing can be applied across the audible spectrum, accommodating diverse audio sources.

Equipped with high-headroom circuitry, the PQX-572 provides low distortion levels, allowing for clean and transparent audio processing. Its front panel includes intuitive rotary controls for gain, frequency, and Q, enabling real-time adjustments during any audio session. Additionally, the device features bypass switches for each channel, providing flexibility when comparing processed and unprocessed audio.

On the other hand, the Ashly PQX-571, a single-channel version, shares many features with its twin yet possesses its unique strengths. This model is especially beneficial in setups where space is a concern since it occupies a single rack unit. The PQX-571 is ideal for musicians, small venues, and mobile setups that require high-quality sound processing without extensive equipment.

The PQX-571 maintains the same stellar audio performance found in the PQX-572, offering discrete, high-performance circuitry and low-noise operation. It also provides similar capabilities in frequency adjustment, emphasizing the importance of flexibility in audio manipulation. Both models are ruggedly built, making them suitable for various environments, from recording studios to live sound applications.

In summary, the Ashly PQX-572 and PQX-571 are robust audio tools designed for precise sound control and exceptional audio quality. Their intuitive interfaces and advanced features make them essential components for any audio professional looking to elevate their sound production capabilities. Whether in a recording studio, live venue, or mobile setup, these devices deliver performance and reliability that audio engineers can trust.