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Operating Manual - DPX-100 Graphic Equalizer - Compressor/Limiter

When Using Heavy Compression, Background Noise

Is Noticeable During Quiet Sections Of The Program

As defined in the section on compression, quiet

program material is effectively made louder while loud

peaks are made quieter. When the program source is thus

raised in volume, its noise floor is also raised in volume

by a proportionate amount. This is not a defect in the

compressor/limiter, but an unavoidable side effect of the

gain altering process. If the noise becomes a problem,

the solutions are to either decrease noise at the program

source, or use less compression.

Excessive Hum Or Noise

Hum is often caused by a "ground loop" between

components. Try using the suggested balanced input and

output hookups if the other pieces of equipment used in

conjunction with the DPX-100 have balanced inputs and

outputs. Noise can also be caused by insufficient drive

levels. Make sure you are sending a nominal 0 dBV line

level signal to the unit.

12. WARRANTY INFORMATION

Thank you for your expression of confidence in

Ashly products. The unit you have just purchased is pro-

tected by a five-year warranty. To establish the warranty,

be sure to fill out and mail the warranty card attached to

your product. Fill out the information below for your

records.

Model Number ______________________________

Serial Number ______________________________

Dealer _____________________________________

Date of Purchase ____________________________

13. SPECIFICATIONS

EQ:

Input Type . . . . . . . . . . . . . . . . Active Balanced

Impedance . . . . . . . . . . . . . . . . 20K

Max. Level . . . . . . . . . . . . . . . . +23dBu

Input Connectors . . . . . . . . . . 1/4" Phone Jack, XLR

Output Type . . . . . . . . . . . . . . . Pseudo-Balanced

Impedance . . . . . . . . . . . . . . . . 200

Balanced

10K

Unbalanced

Balanced

100

Unbalanced

Max Level . . . . . . . . . . . . . . . . +23dBu

Output Connectors . . . . . . . . . 1/4" Phone Jack, XLR

Frequency Response . . . . . . . . ±.25dB 20Hz-20kHz

THD (20Hz-20KHz) . . . . . . . . <.01%@+20dBu

IM Distortion (SMPTE) . . . . . <.01%@+20dBu

Output Noise (20Hz-20KHz) . <-100dBu

Gain Control . . . . . . . . . . . . . .

(EQ in, all faders flat,

20Hz-20KHz)

Filter Type . . . . . . . . . . . . . . . . Constant Q/Wein Bridge

Bandwidth . . . . . . . . . . . . . . . . 2/3 octave

Tolerance . . . . . . . . . . . . . . . . . ±3%

Range . . . . . . . . . . . . . . . . . . . . ±6 or ±15dB

Subsonic Filter . . . . . . . . . . . . 18dB/octave @20Hz

Compressor/Limiter:

Gain:

. . . . . . . . . . . . . . . . . . ±15dB

Ratio:

. . . . . . . . . . . . . . . . . . 2:1

Attack Time: . . . . . . . . . . . . 200 S-20mS

Release Time: . . . . . . . . . . . 100mS-3Sec

Output: . . . . . . . . . . . . . . . . . . -

Maximum Input Level: . . . . +23dBu

Maximum Output Level: . . +23dBu

Input Impedance: . . . . . . . . 20K

Output Impedance: . . . . . . . 200

Frequency Response: . . . . . ±0.2dB 20Hz-20KHz

Distortion: . . . . . . . . . . . . . . <.01% THD, 0dBu, 1KHz

Output Hum and Noise: . . . <-95dBu

DPX-100 Power Requirements:

93VAC-120VAC, 50-60Hz, 10W

Size and Shipping Weight:

19"L x 1.75"H x 6"D (8 lbs.)

Note: 0dBu = 0.775 Vrms

Pseudo-Balanced Output has balanced output impedance

with single ended signal.

to +6dB

to +18dB

balanced

Pseudo-Balanced

<0.15% THD, +15dBu,

20Hz-20KHz