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Operating Manual - PROTEA SYSTEM II  3.24CL Crossover / System Processor

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1.  INTRODUCTION

Thank you for your purchase of this Ashly Protea 3.24CL Digital Crossover/System Processor.  The

Protea SYSTEM II series builds on the tradition of quality and value which has earned Ashly its place as a

market leader in crossovers, equalization, and signal processing.

Your new 3.24CL is a three input/six output digital signal processor capable of precise control of a

broad range of audio functions.  The front panel interface allows quick access to all control parameters by

offering dedicated function buttons, eliminating the need for hidden sub-menus.  

The 3.24CL-d is the same

as the 3.24CL in every respect except for the input and output delay structure.

1.1 AUDIO  FEATURES

The Protea 3.24CL utilize state of the art DSP technologies, beginning with 24 bit, 48kHz delta-sigma A/D convert-

ers with 128x oversampling.  Digital processing includes Gain, Polarity Invert, Parametric EQ, Shelving Filters, Time Delay,

Crossover Functions, Compression, Limiting, and Signal Routing, all taking place in twin high performance DSP proces-

sors.  D/A conversion uses 24 bit delta-sigma converters with 128x oversampling.  All inputs and outputs are precision

balanced and RF protected using XLR connectors.

1.2 USER INTERFACE

Front Panel Interface:

  A backlit 2 x 20 character LCD displays channel and function settings. Dedicated buttons

provide access to all audio functions and system tools.  The display indicates the current preset number, then subse-

quently shows the selected input or output and its active control parameters.  Five segment LED arrays on each input and

output provide audio level information and mute status.

2. UNPACKING

As a part of our system of quality control, every Ashly product is carefully inspected before leaving the factory

to ensure flawless appearance.  After unpacking, please inspect for any physical damage.  Save the shipping carton and

all packing materials, as they were carefully designed to minimize the possibility of transportation damage should the unit

again require packing and shipping.  In the event that damage has occurred, immediately notify your dealer so that a

written claim to cover the damages can be initiated.  The right to any claim against a public carrier can be forfeited if the

carrier is not notified promptly and if the shipping carton and packing materials are not available for inspection by the

carrier. Save all packing materials until the claim has been settled.

3.  AC  POWER  REQUIREMENTS

Note:  The AC power switch for model 3.24CL is on the back panel.

  The Protea 3.24CL uses a universal input

power supply which will accept any line voltage from 80VAC to 260VAC, 50-60Hz, and is resistant to voltage dips, or

"brown outs".  A standard IEC-320 grounded AC inlet is provided on the rear panel to accept the detachable power cord.

Never remove the AC earth ground connection to the 3.24CL.

  In the event of fuse failure, refer the product to a qualified

service technician for fuse replacement, replacing only with the same type and rating fuse.

Summary of Contents for 3.24CL-d

Page 1: ...DIO INC 847 Holt Road Webster NY 14580 9103 Phone 585 872 0010 Toll Free 800 828 6308 Fax 585 872 0739 www ashly com 3 24CL 3 24CL d Digital Crossover System Processor Operating Manual Digital Audio P...

Page 2: ...ANEL CONTROL FEATURES 5 4 1 Function Keys and Data Wheel 5 4 2 Presets 5 4 3 Input Select 5 4 4 Output Select 5 4 5 LED Indicators 5 4 6 Audio Functions 6 4 6a Gain 6 4 6b EQ 6 4 6c Delay 7 4 6d Cross...

Page 3: ...within an equilateral triangle is in tended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk...

Page 4: ...functions and system tools The display indicates the current preset number then subse quently shows the selected input or output and its active control parameters Five segment LED arrays on each inpu...

Page 5: ...settings should the unit be turned off before changes can be saved When the 3 24CL is first powered up the last working preset is loaded displaying the number and name last used before the unit was tu...

Page 6: ...annel has four selectable EQ filters In all cases each filter is se lectable between parametric PEQ 1st order Low Shelf LS1 2nd order Low Shelf LS2 1st order High Shelf HS1 and 2nd order High Shelf HS...

Page 7: ...ble the filter action will be Finding the problem frequency is relatively easy but finding the best combination of cut and bandwidth takes a little practice Again it is well worth the time becoming co...

Page 8: ...Lnkwtz 4 6d Crossover Xover Crossover functions on the Protea 3 24CL are available only on the six output channels Every channel s crossover consists of a high pass filter HPF and a low pass filter L...

Page 9: ...e reason for this is that Linkwitz Riley filters are defined in terms of performance criterion on the summing of two adjacent crossover HPF and LPF filters rather than defined in terms of the pole zer...

Page 10: ...he recall button once select the desired preset number and press recall again At this point the LCD display prompts the user to mute the outputs or not and selecting Yes or No will load the new preset...

Page 11: ...button then select the Security display line on the LCD Use the data wheel to select from the four security levels If the unit is brand new and has never had a security code or has had a factory reset...

Page 12: ...bleshooting Tips No power Is the detachable AC cord fully plugged in Is the rear panel power switch on Controls don t work check the Security Level If set to Full Lockout then Protea unit is view only...

Page 13: ...put Delay 0 85 milliseconds Output Delay 0 256 milliseconds Crossover HPF and LPF Frequency Range 19 7Hz to 21 9kHz Off Available Filter Types 12dB Oct Butterworth 12dB Oct Bessel 12dB Oct Linkwitz Ri...

Page 14: ...EQ Filter no 3 Filter Type _____________ Frequency _________ Boost Cut _______ Bandwidth PEQ ________ EQ Filter no 4 Filter Type _____________ Frequency _________ Boost Cut _______ Bandwidth PEQ ____...

Page 15: ...__________________ Attack Time ________________ Release Time ____________________ Output 4 Source ______________ Output Gain ____________ Polarity ___________ Output Delay ____________________________...

Page 16: ...LS 1st Order HS or 2nd Order HS 40 to 12dB Output Clip Indicator 0 21ms Output Source A B C A B All None Xover HPF LPF 12dB BWorth 12dB Bessel 12 dB Linkwitz 18dB Bessel 18dB Bworth 24dB Bworth 24dB...

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