Instruction/ maintenance manual of the product TRA-4150 Ashly
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Multi-Channel Power Amplifiers Operating Manual Po w erflex ASHL Y AUDIO INC. 847 Holt Road W ebster , NY 14580-9103 Phone: (716) 872-0010 T oll-Free: (800) 828-6308 Fax: (716) 872-0739 www .
2 Operating Manual - P owerf le x Multi-Channel P ower Amplif ier T able Of Contents 1 INTR ODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 UNP A CKING . . . . . . . . . . . .
3 Operating Manual - P owerfle x Multi-Channel P ower Amplifier CAUTI O N RI S K OF ELEC T R I C SH O CK DO NOT OPEN The lightning flash with ar rowhead symbol, within an equalateral triangle, is inte.
4 Operating Manual - P owerf le x Multi-Channel P ower Amplif ier 1. INTR ODUCTION The Ashly Po werflex amplif iers combine the eff i- ciency of a MOSFET high-speed switching output stages with the so.
5 Operating Manual - P owerfle x Multi-Channel P ower Amplifier 3.3 A C Gr ounding Requirements T o reduce the r isk of ground loop hum, all system ground references should originate at the same point in your A C po wer distri b ution. Do not remov e the amplif ier’ s ground pin, as it creates a potential shock hazard.
6 Operating Manual - P owerf le x Multi-Channel P ower Amplif ier 6. FRONT P ANEL INDICA T ORS 6.1 Po wer Switch When the unit is switched on there is a fi ve sec- ond delay , during which time the PRO TECT circuit will activ at e, disconnecting the speakers from the amplifier output.
7 Operating Manual - P owerfle x Multi-Channel P ower Amplifier 7. REAR P ANEL FEA TURES 7.1 Input Connectors The Powerflex inputs use 1/4" tip-ring-slee ve (TRS) phone jacks, balanced XLR jacks, and balanced two piece "Euroblock" style connectors.
8 Operating Manual - P owerf le x Multi-Channel P ower Amplif ier 7.2 Input Ground Switch This switch separates internal circuit ground from the chassis ground on all inputs. Ground connections from an incoming signal are alw ays connected to internal cir- cuit ground, but float from the chassis ground as long as the switch is out.
9 Operating Manual - P owerfle x Multi-Channel P ower Amplifier The Po werflex 6250 is cap able of three channels of bridged output, while the Po werflex 440 is capable of two channels of bridg ed output. T o use bridged mode, first press MONO from the Stereo/Mono switch on the channel pair to be brid ged.
10 Operating Manual - P owerf le x Multi-Channel P ower Amplif ier 8. SELF-PR O TECTION FEA TURES Powerfle x amplifiers contain circuitry to self-pro- tect during e xtreme fault conditions. These fault condi- tions are: 1.) P ower supply under voltage 2.
11 Operating Manual - P owerfle x Multi-Channel P ower Amplifier 9. TYPICAL APPLICA TIONS The Powerflex 6250 is essentially three stereo amplif ier s in one c hassis, each with dual stereo, dual mono, and bridged mono capabilities, while the Powerfle x 4400 is two stereo amplifiers (four channels), b ut with more po wer per channel than the 6250.
12 Operating Manual - P owerf le x Multi-Channel P ower Amplif ier 9.3 Bridged Mono Setup 9.4 T ypical P A Setup (Mo n o) (Mo n o) +- B ridge /70V Ch1 (+ ) (- ) Ch2 (+ ) (- ) +- B ridge /70V Ch3 (+ ) (- ) Ch4 (+ ) (- ) +- B ridge /70V Ch5 (+ ) (- ) Ch6 (+ ) (- ) OUTPUTS As hly Au dio In c.
13 Operating Manual - P owerfle x Multi-Channel P ower Amplifier 10. DESIGN THEOR Y Powerfle x amplifiers are based on ster eo dri v er modules that use digital processing to generate a spread- spectrum switching pattern between about 200KHz and 1.5MHz, depending on input signal amplitude and fre- quenc y .
14 Operating Manual - P owerf le x Multi-Channel P ower Amplif ier 11.2 Distorted Sound 1.) Clip LED is flashing r e gularly Amplif ier is being ov erdri v en. T urn down the in- put le vel control, or reduce the output le v el from the sig- nal source.
15 Operating Manual - P owerfle x Multi-Channel P ower Amplifier T ypical Idle Current Powerflex 6250 Powerflex 4400 120V : 0.81A 120V : 0.9A 240V : 0.42A 240V : 0.5A Current with Typical A udio Program Mat er ial (4 ohm load - all Channels) Powerflex 6250 Powerflex 4400 120V : 6.
Operating Manual - P owerf le x Multi-Channel P ower Amplif ier Printed in USA 10/01 6250-3 ASHL Y AUDIO INC. 847 Holt Road W ebster , NY 14580-9103 Phone: (716) 872-0010 Fax: (716) 872-0739 T oll Free (800) 828-6308 www .ashly .com 2001 by Ashly Audio Corporation.
An important point after buying a device Ashly TRA-4150 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Ashly TRA-4150 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Ashly TRA-4150 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Ashly TRA-4150 you will learn all the available features of the product, as well as information on its operation. The information that you get Ashly TRA-4150 will certainly help you make a decision on the purchase.
If you already are a holder of Ashly TRA-4150, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Ashly TRA-4150.
However, one of the most important roles played by the user manual is to help in solving problems with Ashly TRA-4150. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Ashly TRA-4150 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
