Protea™ 4.8SP and 3.6SP DSP Loudspeaker System Processors Operating Manual ASHLY AUDIO INC. 847 Holt Road Webster, NY 14580-9103 Phone: (585) 872-0010 Toll-Free: (800) 828-6308 Fax: (585) 872-0739 ashly.
Operating Manual - PROTEA™ 4.8SP and 3.6SP System Processors Important Safety Instructions Consignes de sécurité à lire attentivement The lightning flash with arrowhead symbol, within an equilateral triangle, is intended 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 of electric shock to persons.
Operating Manual - PROTEA™ 4.8SP and 3.6SP System Processors Table Of Contents 1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.1 Audio Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2 User Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 UNPACKING . . . . . . . . . . . . . . .
Operating Manual - PROTEA™ 4.8SP and 3.6SP System Processors 1. INTRODUCTION Thank you for your purchase of this Ashly Protea 4.8SP or 3.6SP Digital Crossover/System Processor. The Protea 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. The 4.8SP has four inputs and eight outputs, while the 3.6SP has three inputs and six outputs.
Operating Manual - PROTEA™ 4.8SP and 3.6SP System Processors 4. FRONT PANEL CONTROL FEATURES 4.1 Function Keys and Data Wheel To the right of the LCD display are two unlabeled function keys and a rotary data wheel. All audio and system parameters are edited using these three controls. Each of the two lines of text on the LCD display correspond to a dedicated function key, so that various tasks on both lines may be selected using their respective keys.
Operating Manual - PROTEA™ 4.8SP and 3.6SP System Processors 4.6 Audio Functions 4.6a Gain Input and Output Gain are separately adjustable from -40dB to +12dB in 0.1dB increments. The output gain menu also provides for selection of input source(s) for a given output channel, as well as polarity of the outgoing signal. Any input or combination of inputs can be routed to any or all outputs.
Operating Manual - PROTEA™ 4.8SP and 3.6SP System Processors audible change to the overall tone of a signal. Parametric filters are best used to hunt down and eliminate problem feedback frequencies, add or remove a characteristic "hot spot" from microphones, or clean up room resonance situations. It is well worth the time getting proficient with parametric EQ filters, as they offer the best solution to many EQ problems. Protea SP parametric filters have a boost/cut range of +15dB to -30dB.
Operating Manual - PROTEA™ 4.8SP and 3.6SP System Processors Output channels have time delay as well. Output delay is best used to align discrete drivers within a speaker cabinet or cluster, normally quite close together. For example, a typical three way speaker cluster would have low end, midrange, and high frequency drivers all located near one another.
Operating Manual - PROTEA™ 4.8SP and 3.6SP System Processors Butterworth Butterworth filters individually are always -3dB at the displayed crossover frequency and are used because they have a "maximally flat" passband and sharpest transition to the stopband. When a Butterworth HPF and LPF of the same crossover frequency are summed, the combined response is always +3dB.
Operating Manual - PROTEA™ 4.8SP and 3.6SP System Processors 4.7 Other Functions The Protea 4.8SP and 3.6SP have a full complement of non-audio functions within a single keystroke to navigate around the product quickly. Recall, Save, Copy, Mute, and a Utilities menu complete the user friendly interface Protea products are known for. 4.7a Recall There are 30 stored presets which can be recalled on the SP processor.
Operating Manual - PROTEA™ 4.8SP and 3.6SP System Processors 4.7e Util The Protea 4.8SP and 3.6SP utilities include a security section for password protected lockout, a dBu/VU meter preference select, and a device name display. Security There are four security modes in the 4.8SP and 3.6SP: Off, Preset Lock, Parameter Lock, and Full Lockout.
Operating Manual - PROTEA™ 4.8SP and 3.6SP System Processors 5. INTERCONNECT FEATURES 5.1 Audio Connections All Protea audio connections use three pin XLR jacks, with pin 2 (+), pin 3 (-), and pin 1(G). Inputs and outputs are electronically precision balanced. If an unbalanced signal is fed to an input, the signal should be on the (+) connection (pin 2) and pin 3 must be tied to ground, or significant signal loss will result. In other words, never float pin 2 or pin 3.
Operating Manual - PROTEA™ 4.8SP and 3.6SP System Processors The NE software project canvas The project canvas is used to visually represent and control a fixed physical sound system installation, and can display any of the Ashly processors, amplifiers, and remotes used in that system. The user can also place an assortment of isolated control objects such as level faders, single LEDs, meter bars, etc, and map them to specific product functions within that project.
Operating Manual - PROTEA™ 4.8SP and 3.6SP System Processors 7. TROUBLESHOOTING 7.1 - Audio Troubleshooting 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". Change security settings in Util menu or software. No sound - Check to see if the input or output is muted.
Operating Manual - PROTEA™ 4.8SP and 3.6SP System Processors Limiter Threshold Range . . . . . . . . . . . . . . . . . . . . Ratio Range . . . . . . . . . . . . . . . . . . . . . . . . Attack Time Range . . . . . . . . . . . . . . . . . . Release Time Range . . . . . . . . . . . . . . . . . Frequency Response . . . . . . . . . . . . . . . . . THD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dynamic Range . . . . . . . . . . . . . . . . . . . . . Audio Sampling Rate . . . . . . . . . .
Operating Manual - PROTEA 4.8SP and 3.6SP System Processors ASHLY AUDIO INC. 847 Holt Road Webster, NY 14580-9103, USA Phone: (585) 872-0010 Fax: (585) 872-0739 Toll Free (800) 828-6308 ashly.com ©2014 by Ashly Audio Corporation, a division of Jam Industries Ltd. All rights reserved worldwide. All features, specifications, and graphical representations are subject to change or improvement without notice. Printed in USA Protea 4.8SP and 3.
