English dropdown-ico

Directed Audio 250/4 manual

1
2
3
4
5
6
7
8
9
10
11
12
13
14

Go to page of

Similar user manuals

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Directed Audio 250/4, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Directed Audio 250/4 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of Directed Audio 250/4. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of Directed Audio 250/4 should contain:
- informations concerning technical data of Directed Audio 250/4
- name of the manufacturer and a year of construction of the Directed Audio 250/4 item
- rules of operation, control and maintenance of the Directed Audio 250/4 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Directed Audio 250/4 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Directed Audio 250/4, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Directed Audio service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Directed Audio 250/4.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Directed Audio 250/4 item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    models 200/2 300/2 250/4[...]

  • Page 2

    2 © 2003 Directed Electronics, Inc T ABLE OF CONTENTS CONGRA TULA TIONS Congratulations for choosing a Directed Audio power amplifier from Directed Electronics, the industry leader in high quality automotive security and audio equipment since 1990. Directed Audio power amplifiers continue to set new standards of perfor- mance, reliability , and af[...]

  • Page 3

    LIMITED TWO-YEAR CONSUMER W ARRANTY 3 © 2003 Directed Electronics, Inc Directed Electronics, Inc. promises to the original purchaser , to replace this product should it prove to be defective in workman- ship or material under normal use, for a period of two years from the date of purchase by the dealer as indicated by the date code marking of the [...]

  • Page 4

    4 © 2003 Directed Electronics, Inc High-powered car audio systems may produce sound pressure levels that exceed the threshold at which hearing loss may result. They may also impair a driver’ s ability to hear traffic sounds or emergency vehi- cles. Use common sense and practice safe listening habits when listening to or adjusting your audio syst[...]

  • Page 5

    5 © 2003 Directed Electronics, Inc INST ALLA TION GUIDELINES 1. Please read this owner’ s manual carefully before installing this ampli- fier . 2. Disconnect the batter y ground terminal prior to making any elec- trical connections. 3. Check for any hazards or obstruc- tions such as gas tanks, fuel or brake lines, and wiring harnesses before mou[...]

  • Page 6

    6 © 2003 Directed Electronics, Inc speaker load, the more heat is generated. For low impedance speaker applications or restricted ventilation installations, an external cooling fan may be advisable. 9. Batter y and ground connections to the vehicle should be made with crimped ring terminals of the appro- priate size (surface area is what counts); [...]

  • Page 7

    7 © 2003 Directed Electronics, Inc 1. H H i i g g h h L L e e v v e e l l I I n n p p u u t t C C o o n n n n e e c c t t o o r r - Accepts 1v to 10v input from the headunit’ s speaker output. 2. R R C C A A O O u u t t p p u u t t J J a a c c k k s s - - These pass through RCA jacks can be used to send the input signal to a second amplifier . 3[...]

  • Page 8

    1. S S p p e e a a k k e e r r O O u u t t T T e e r r m m i i n n a a l l s s - Connect the speakers to these terminals. (Refer to the Speaker Connection section of this guide.) 2. P P o o w w e e r r F F u u s s e e - - This fuse protects the amplifier against internal electrical damage and is meant to protect the amplifier only . All other power[...]

  • Page 9

    9 © 2003 Directed Electronics, Inc REM GND BAT T 20A FUSE SPEAKER OUTPUT LR BRIDGED FIGURE 2—AMPLIFIER CONNECTIONS 200/2 300/2 REAR 1 2 4 3 5 REM GND BAT T 25A FUSE LR BRIDGED SPEAKER OUTPUT FRONT REAR FIGURE 2—AMPLIFIER CONNECTIONS 250/4 REAR 1 2 4 3 5[...]

  • Page 10

    10 © 2003 Directed Electronics, Inc SPEAKER WIRING DIAGRAMS 200/2 300/2 Stereo operation (top view) Mono operation (top view) Simultaneous stereo/mono operation (top view)[...]

  • Page 11

    11 © 2003 Directed Electronics, Inc SPEAKER WIRING DIAGRAMS 250/4 Simultaneous stereo/mono operation (top view) N N O O T T E E : : For bridged two channel operation as shown in this diagram, connect right channel RCA cables to the front inputs of the amplifier , and left channel RCA cables to the rear inputs of the amplifier . For summed subwoofe[...]

  • Page 12

    12 © 2003 Directed Electronics, Inc CROSSOVER SETTINGS AND GAIN ADJUSTMENT Y our Directed Audio power amplifier needs to be adjusted carefully to achieve maximum performance. These are some guidelines to follow when fine-tuning the amplifier .  For full-range and simultaneous stereo/mono bass applications, the crossover selection switch should [...]

  • Page 13

    13 © 2003 Directed Electronics, Inc SPECIFICA TIONS Directed model 200/2 300/2 250/4 RMS continuous power per channel , both chan- nels driven into 4 ohms from 20 to 20,000 Hz, with less than 0.08% T otal Harmonic Distor tion @ 14.4 VDC RMS continuous power per channel , both chan- nels driven into 2 ohms from 20 to 20,000 Hz, with less than 0.1% [...]

  • Page 14

    16 © 2003 Directed Electronics, Inc The company behind this system is Directed Electronics, Inc. Since its inception, Directed has had one purpose, to provide customers with the finest vehicle security , car stereo products, rear seat entertainment, and accessories available. The recipient of more than 20 patents in the field of advanced electroni[...]