English dropdown-ico

Parasound 275 manual

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

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 Parasound 275, 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 Parasound 275 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 Parasound 275. 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 Parasound 275 should contain:
- informations concerning technical data of Parasound 275
- name of the manufacturer and a year of construction of the Parasound 275 item
- rules of operation, control and maintenance of the Parasound 275 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 Parasound 275 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 Parasound 275, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Parasound 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 Parasound 275.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Parasound 275 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

    Model 275 T w o Channel P o w er Amplier O WNER’S GUIDE Model 2 7 5 T wo Channel Amplifier A B Power Model 275 Two Channel Amplifier Protect Hi Temp L R[...]

  • Page 2

    IMPORTANT SAFETY INSTRUCTIONS The lightning flash with the arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of “dangerous voltage” inside the product that may constitute a risk of electric shock. The exclamation point within an equilateral triangle is intended to alert the user to the presence of imp[...]

  • Page 3

    TABLE OF CONTENTS 1 Unpacking and Accessories .......................................... 2 115v – 230v AC Selector Switch ........................................ 3 Ventilation Requirements ........................................... 3 Rack Mounting ................................................. 3 Rear Panel Connections and Controls ..........[...]

  • Page 4

    INTRODUCTION 2 Congratulations and thank you for your purchase of this precision Parasound audio component. The Parasound Model 275 is the latest generation of popular and proven audio power amplifiers dating back to 1981. It has been designed for a wide variety of applications, establishing a new standard for audio performance, user-friendliness a[...]

  • Page 5

    AC VOLTAGE, INSTALLATION AND RACK MOUNTING 3 115v - 230v AC Voltage Selector Switch This switch is found on the chassis rear panel. The 115V position of this switch is correct for North America; most other regions require setting it to 230V. Make sure the 115/230V switch is set for the correct AC line (mains) voltage before you connect the Model 27[...]

  • Page 6

    REAR PANEL CONNECTIONS AND CONTROLS 4 Connection Precautions Di sc on ne ct the AC co rd bef ore ma ki ng or ch an ging any inp ut , tr igge r, or sp ea ke r wire con ne ct io ns. Make sure there is no strain or tension on any wires that could cause them to pull loose. In Jacks Connect the shielded audio cables from your preamplifier or system cont[...]

  • Page 7

    High Pass Filter Switch The High Pass filter can improve the sound in virtually any installation. It’s called a “high pass” filter because it permits signals higher than 20 Hz and 40 Hz to pass, while preventing signals below these frequencies from passing. • The Flat switch position disconnects the filter and the 275’s frequency response[...]

  • Page 8

    REAR PANEL CONNECTIONS AND CONTROLS continued Correct Speaker Polarity is Important As you connect the speaker wires, you can see that the insulation on one of the two wires in each pair has either printing or a raised ridge. The marking lets you know which wire you con- nected to the positive speaker terminal at its other end. Make sure the + wire[...]

  • Page 9

    REAR PANEL CONNECTIONS AND CONTROLS continued For a sin gle pair of 4 ohm or 8 ohm speaker s the Loa d Impedance switch may be set to its 4-8 Ohms positi on. The Load Impedance Switch must be set to 2-3 ohms whe never the load will be lower than 4 ohms. Speaker loads below 4 ohms impedance can cause the Model 275 to over - heat rapidl y and cau se [...]

  • Page 10

    REAR PANEL CONNECTIONS AND CONTROLS continued 8 Note: If the controller’s trigger output is a + and - terminal, you can cut the 2.5mm plug off one end of the included trigger wire and attach the bare wires to these terminals. The lead with the white stripe on it corresponds to the plug’s tip and the unmarked lead corresponds to the sleeve of th[...]

  • Page 11

    Power Button Press the Power button once to turn the Model 275 on, press it again to turn it off. The Power button is inoperative when the Auto Turn On switch is set to Audio or 12V. Note: It is normal for the 275 Protect indicator to flash briefly right after turn on. A and B Speaker Select Buttons These buttons turn on the speaker pairs connected[...]

  • Page 12

    Maintaining Your Model 275 Your Parasound Model 275 power amplifier requires no periodic maintenance other than the knowledge that you are bragging about it to your friends. It has no user-serviceable parts inside. To avoid the risk of electric shock, do not remove its top cover. The exterior can be cleaned with a soft cloth pre-moistened only with[...]

  • Page 13

    Call your Parasound dealer first. If the dealer can’t help you with your problem we encourage you to call Parasound’s Technical Service Department, toll-free at 1-866-770-8324 , Monday - Friday, 8am - 4pm Pacific time. We can suggest other diagnostic tests you can easily per- form. If we determine that your Model 275 should be returned to Paras[...]

  • Page 14

    Continuous RMS Power Output 20 Hz – 20 kHz, Both Channels Driven 75 wa tts x 2, 8 Ω 12 0 wa tts x 2, 4 Ω 12 0 wa tts x 2, 2 Ω Continuous RMS Power Output 20 Hz – 20 kHz, Bridged Mono 200 watts, 8 Ω 200 watts, 4 Ω Current Capacity 20 amps peak per channel Frequency Response 20 Hz - 50 kHz, +0/-3 dB, 1 watt Dynamic Headroom 1.3 dB Total Harm[...]

  • Page 15

    Notes: CONNECTION AND SETUP NOTES 13[...]

  • Page 16

    W e i n v i te y o u t o v i s it w w w .p ar as ou n d . co m f or t h e m o s t u p -t o- da te in fo rm a t i on on yo ur un it an d to fi nd ou t ab ou t o the r Pa ra sou nd pro d uc t s. Lea rn why P a ra so un d ha s be en a q ua l i t y a n d v a lu e fa vo ri te of ma ga zi ne re vi ew e r s , s o u nd p r of es si on al s a nd l is te n e[...]