Ashly 2.24PS Quick start guide

TECHNICAL NOTES & SPECIFICATIONS
ARCHITECTS SPECIFICATIONS
Protea System II 2.24PS Two Channel Digital Parametric Equalizer Slave
 24 Bit A/D - D/A Audio Resolution
 24 Bit/100MHz (x2) Digital Signal Processing
 Two 12-Band Channels of Parametric EQ
 Programmable Compressor/Limiter
 Programmable Delay up to 1.364 Seconds
 Programmable High and Low Pass Filters
 Programmable High and Low Shelf Filters
 Control From PC or MIDI
 Contact Closure for External Recall of 6 Scenes
 Balanced XLR and 1/4 Inputs and Outputs
 Linkable Channels
 +10/- 20dB Boost and Cut, 0.5dB increments
 128 Preset Locations, 50 Scenes
 RS-232 Computer Interface
 Full MIDI Implementation
 5-Year Worry-Free Warranty
Protea System II 2.24PS
The programmable parametric equalizer shall consist of two inde-
pendent channels of 24 bit digital parametric equalization. Each
channel shall consist of 12 bands with an adjustable Q ranging
from 1/25th to 3.3 octaves. Frequency adjustment shall be twen-
ty-four step/octave from 20Hz to 20KHz. The range of equaliza-
tion per band shall be +10/-20dB in 0.5dB increments. The
equalizer shall have a gain of unity with all bands set at zero, and
shall have a maximum in/out level of +20dBu. Frequency
response shall be ±.25dB 20Hz to 20kHz. Dynamic Range shall
be greater than 110dB (20Hz-20KHz, unweighted) and SMPTE
intermodulation distortion or THD shall be less than 0.01% at
1KHz, +20dBu. Input impedance shall be 18K ohms balanced.
Output impedance shall be 200 ohms. Inputs and outputs shall
be balanced type on XLR and 1/4 phone jacks. Each channel
shall have a programmable high shelf filter adjustable from
1.6KHz to 20KHz and a low shelf filter adjustable from 20Hz to
240Hz. Level adjustment of the High and Low Shelf shall be in
0.5dB increments with a range of +/-15dB and shall have a selec-
table slope of 6 or 12dB. The equalizer shall also include on each
channel a 24dB per octave high pass filter adjustable from 20Hz
to 10.6KHz, a 24dB per octave low pass filter adjustable from
33Hz to 20KHz, a full function, pre/post switchable compres-
sor/limiter with adjustable threshold, ratio, attack and release
controls, and a time delay capable of a maximum of 1.364 sec-
onds adjustable in 20us increments. LED indicators shall show
signal present, clip and MIDI channel number. Channel gain
shall be adjustable over a range of +6dB to - infinity in 0.5db
increments. Control of the unit shall be via the RS-232 serial
port using Ashly Protea System Software, or via MIDI. External
recall of up to six scenes via contact closure shall be accessable
through a db9 connector. The equalizer shall weigh 13 lbs. net
and mount in a standard 19 rack using 1 space (1.75 high). The
power requirement shall be 90-125VAC (180-250VAC, switch-
able), 50-60Hz, 20W. The unit shall be the Ashly Audio Protea
System II 2.24PS.

Ashly Audio Inc., 847 Holt Road, Webster, NY 14580-9103, Toll Free [phone], Telephone [phone], FAX [phone]
Internet: http://www.ashly.com, email: [email protected]
Ashly manufactures a complete and comprehensive line of Graphic and Parametric Equalizers,
Electronic Crossovers, Power Amplifiers, Compressor-Limiters, Mixers, and
Amplifier Input Options. Please call, write or visit our web site for information on any of these Ashly Products.
Applications:
PA Systems, Concerts, Outdoor Festivals, Churches, Sports Stadiums, Auditoriums, Studios, Dance/Night Clubs, Lecture Halls
Rear Panel 2.24PS
General Specifications 2.24PS
INPUT
Type:
Impedance:
Max. Level:
OUTPUT
Type:
Impedance:
Max. Level:
Frequency Response:
THD (20Hz-20kHz):
Dynamic Range:
Output Noise:
FILTERS
Type:
Number:
Bandwidth:
Frequency Resolution:
Range:
Power Requirements:
Shipping Weight:
Dimensions:
I/O Connectors:
Environmental
Active Balanced
18 K ohms
+20dBu
Pseudo-Balanced
200 ohms
+20dBu
±.25dB 20Hz-20kHz
<.01% @ 1KHz, +20dBu
>110dB (20Hz-20KHz) unweighted
<-90dBu unweighted
Parametric
2 X 12
1/25 Octave to 3.3 Octave
1/24 Octave
+10/-20dB, 0.5dB Increments
90-125VAC, 50-60Hz, 20W
180-250VAC, 50-60Hz, 20W
9 lbs
19"L x 1.75"H x 8"D
XLR, 1/4"
40-120 deg. F Noncondensing
COMPRESSOR/LIMITER
Threshold:
Ratio:
Attack:
Release:
HPF
Range:
LPF
Range:
HIGH SHELF FILTER
Range:
LOW SHELF FILTER
Range:
DELAY
Maximum Delay:
Increment:
PROCESSOR
Input A to D
Output D to A
Processor
Sample Rate
Propagation Delay
-20dBu to +20 dBu
1dB increments
1.2:1 to Infinity
(1.2:1, 1.5:1, 2:1, 3:1, 4:1, 6:1, 10:1, 20:1,
inf:1)
0.5ms to 50ms per dB
(.5, 1, 2, 5, 10, 20, 50ms)
10ms to 1 sec per dB
(10, 20, 50, 100, 200, 500ms, 1 Sec)
24dB/Octave
20Hz to 10.6Khz
24dB/Octave
33Hz to 20.1KHz
Selectable, 6 or 12dB/Octave
1.6KHz to 20Khz
Selectable, 6 or 12dB/Octave
20Hz to 240Hz
1.364 seconds
20us
24 Bit
24 Bit
24 Bit, 56 Bit Accumulator
48KHz
1.46ms
Notes: 0 dBu = .775 V RMS
Misc:
Protea System Software for PC control of the Protea 2.24PS may be downloaded free from our website. Use it to control the 4.24C, 4.24D,
4.24G, 4.24GS, 4.24PS, 2.24GS and 2.24PS. Download it now to preview the capabilities of the Protea System II Digital Products. Protea System
Software operates on Windows 95, 98, 2000, NT, ME and XP platforms.