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Summary of Contents for Ashly pema 8250
- Page 1 Protea Equipped Media Amplifier pema 8250 pema 8125 pema 4250 pema 4125 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.com...
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Page 2: Important Safety Instructions
Operating Manual - Pema Protea Equipped Media Amplifier Important Safety Instructions Consignes de sécurité à lire attentivement The lightning flash with arrowhead symbol, within an equilateral triangle, Le symbole de la flèche dans un triangle équilateral symbolisant la foudre is intended to alert the user to the presence of uninsulated "dangerous est prévu pour sensibiliser l’utilisateur à... -
Page 3: Table Of Contents
4 .1h FR-8 or FR-16 Programmable Fader Controller . . . . . . . . . . . . . . . . . . . . . . . 18 4 .1i Ashly Remote Application for iPad . -
Page 4: Introduction And Unpacking
The philosophy we established from the very beginning holds true today: to offer only the highest quality audio tools at an affordable cost to the professional user – ensuring reliability and long life. Many years later, Ashly remains committed to these principles. -
Page 5: Pema Amplifier Models
Pema 4250 - Eight input, four 250W amp channels, low Z (speaker), or constant voltage (High Z) output models. Pema 8250 - Eight input, eight 250W amp channels, low Z (speaker), or constant voltage (High Z) output models. 2.2 Installation Requirements Each Pema model is 2RU, and weighs <22 pounds (10kg). -
Page 6: Front Panel Features
Operating Manual - Pema Protea Equipped Media Amplifier 2.3b Firewalls - If Protea software does not detect the amplifier or show real time changes, the firewall in the host PC may need to have Protea software added to its firewall exceptions, since firewalls may block the amplifier response to the PC. The current PC firewall status is found by clicking on the Windows Start button, then Control Panel, then double clicking on the security shield where firewall exceptions are configured. -
Page 7: Rear Panel Features
12. Data - These four pins offer serial data control and can be wired to Ashly remote control devices such as the WR-5 or RD-8C. Ashly also offers an in-line converter called the INA-1 that allows the Data port to be used with RS-232 controllers. -
Page 8: Amplifier Protection
In other words, a device icon on the canvas is not necessarily a live product. It may be a virtual device, or a device that is cur- rently off-line. In the device tree, all currently connected and active devices are highlighted in green. Ashly devices which have... - Page 9 Com LED on that unit’s face panel for two seconds. The project canvas is used to visually represent a sound system installation, and can display any of the networked 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 device functions within that project.
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Page 10: Device Options
1) Flash Reprogram Mode - The amplifier firmware can be updated by downloading a new firmware file to the amplifier over the network. Latest firmware updates, if available, can be found on the Ashly website. When the amplifier is put into flash reprogram mode, the power and standby LEDs both turn on and all audio function is suspended until flash reprogram is completed. -
Page 11: Device Control Tabs
PC connected to the network to recall files saved on either the PC or on the device. 2) Use contact closures to load presets 1-4 from memory by wiring switches to the rear panel contact closure connector. 3) Use an Ashly WR-5 or neWR-5 remote control. 4) Use the event scheduler Note: A full preset recall event will overwrite any unsaved changes, so be sure the current configuration is saved before continuing or it will be lost. - Page 12 Operating Manual - Pema Protea Equipped Media Amplifier Channel Thermal - This software LED indicator becomes lit when the channel is operating at an excessive and unsus- tainable temperature. Channel Protect - This becomes lit when any amplifier channel is switched into protect mode, meaning one or more fault conditions are occurring.
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Page 13: Security
The amplifier's firmware revi- sion is shown in the hardware configuration section as well. From time to time Ashly may post updated firmware on our website which can be downloaded and then flash reprogrammed to the amplifier. Flash reprogram is found in the device options menu when connected to a live Pema device. -
Page 14: Dsp Controls
Operating Manual - Pema Protea Equipped Media Amplifier 3.4d DSP Control Tab 3.4d - Pema DSP Control Tab The DSP tab includes an input side and an output side, with a cross linking matrix mixer in between. Key features of the DSP window include: Input Channel Number - Right click on this to bring up Clear, Copy/Paste, Link, and Sub Preset functions for that input channel. - Page 15 Operating Manual - Pema Protea Equipped Media Amplifier 5) Delay - Speaker Delay at 48kHz sampling rate is ≤21mS, and Delay is ≤682mS. At 96kHz, ≤10mS and ≤341ms. 6) Metering - -60dBu to +20dBu display 7) Signal Generator - Pink noise, White Noise, Sine Wave Extensive online help information is available for all DSP blocks within the software.
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Page 16: Input Source
Operating Manual - Pema Protea Equipped Media Amplifier 3.4e Input Source Tab Inputs are analog balanced mic/line, summed analog mono unbal- anced RCA connectors, or digital audio input (optional). Analog mic/ line preamp gain of 0dB, +20dB, +40dB, or +60dB is selected in this window by clicking on the <PRE>... -
Page 17: Pema Remote Control
A windowed mylar pocket is available to insert custom function button labels. The Ashly RPS-18 remote power supply is required when more than four WR-5 remotes are connected to one Pema amplifier. -
Page 18: Rd-8C Or Rw-8C Programmable Fader Controller
(not shown) - The Pema ampli- fier Data Port uses a proprietary serial communications protocol which can be converted to RS-232 using the Ashly INA-1 RS-232 adapter. This allows the use 4.1e - RD-8C or RW-8C-5 Wiring of custom designed third party RS-232 controllers. -
Page 19: Remote Control Functions
Operating Manual - Pema Protea Equipped Media Amplifier Remote Control Functions: The following functions within the Pema amplifier can be remotely controlled. A listing of the devices by which each function can be controlled is shown below and explained in the following paragraphs: Pema Function Control Device(s) •... -
Page 20: Remote Preset Recall
RD-8C is wired to a Pema amplifier Data port. The RD-8C will appear in the software Ashly Network device tree as a captive device to the host Pema. Place a Remote Gain function in the Pema DSP tab's input or output to assign fader control for that channel or group of channels. The RD-8C also has a mute button for each fader which will mute all associated channels. -
Page 21: Remote Channel Mute
Operating Manual - Pema Protea Equipped Media Amplifier 7) Protea Software - Real time gain control from software is available using a variety of tools. These include the main amplifier's software control surface using the channel main fader, a single fader gain control placed on an input or output chan- nel, a digital VCA group gain control placed on an input or output, a WR-5 (or neWR-5) gain control, and the output channel matrix mixer function. -
Page 22: Troubleshooting
Operating Manual - Pema Protea Equipped Media Amplifier 5. TROUBLESHOOTING No AC Power 1) Is the detachable AC power cord properly installed? Is it plugged into a known live outlet? 2) Has the Power switch been disabled in software? (sec 4 .2a) 3) Is the amplifier in Standby Mode? (sec 4 .2b) 4) Is the Power On Delay time set excessively high? (sec 3 .2) Amplifier Not Recognized in Protea... - Page 23 Operating Manual - Pema Protea Equipped Media Amplifier neWR-5 Doesn't Work Properly 1) Is the neWR-5 successfully communicating with the network? (sec 2 .3d) 2) Is the neWR-5 connected to a switch, hub, router, or power injector providing sufficient Power Over Ethernet (PoE), or using an external power supply? (sec 4 .1e) 3) Is the neWR-5 assigned within its device window to control the desired amplifier? 4) Is the neWR-5 hardware lockout switch being used, disabling all buttons? (sec 4 .1e) 5) If using neWR-5 for gain control, be sure to install a (ne)WR-5 Remote Gain function in a DSP...
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Page 24: Specifications
Operating Manual - Pema Protea Equipped Media Amplifier 6. SPECIFICATIONS 6.1 General Power Amplifier Specifications 0dBu = 0.775V rms Pema Amplifier Model 4125 8125 4250 8250 120VAC 230VAC 120VAC 230VAC 120VAC 230VAC 120VAC 230VAC Continuous Average Power Output Per Channel Low Z models, Stereo Mode, all channels driven 8Ω, 20Hz-20kHz 1%THD . -
Page 25: Input Source Selection
Operating Manual - Pema Protea Equipped Media Amplifier Remote Standby Contact Closure ......Euroblock 5.08mm - close contact for standby mode Preset Recall Contact Closure . - Page 26 Operating Manual - Pema Protea Equipped Media Amplifier Advanced Gate Controls Filter Level Key Engage Enable... . Yes Notch Filter ....-∞ Key Frequency .
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Page 27: Warranty
ASHLY AUDIO, INC. shall be obligated to only correct defects in the product itself. ASHLY AUDIO, INC. is not liable for any damage or injury, which may result from, or be incidental to, or a consequence of, such defects. -
Page 28: Block Diagram
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.
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