English dropdown-ico

Jeff Rowland Design Group Model 2 manual

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

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 Jeff Rowland Design Group Model 2, 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 Jeff Rowland Design Group Model 2 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 Jeff Rowland Design Group Model 2. 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 Jeff Rowland Design Group Model 2 should contain:
- informations concerning technical data of Jeff Rowland Design Group Model 2
- name of the manufacturer and a year of construction of the Jeff Rowland Design Group Model 2 item
- rules of operation, control and maintenance of the Jeff Rowland Design Group Model 2 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 Jeff Rowland Design Group Model 2 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 Jeff Rowland Design Group Model 2, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Jeff Rowland Design Group 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 Jeff Rowland Design Group Model 2.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Jeff Rowland Design Group Model 2 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

    JE F F R O WL AN D DE SI G N G R OU P[...]

  • Page 2

    Model 2 Stereo Power Amplifier Owner’ s Manual[...]

  • Page 3

    Introduction W elcome to the Jeff Rowland Design Group “family” and congratulations on your purchase of what is unquestionably one of the world’s finest audio power amplifiers. þ With its combination of industrial grade active and passive devices, precision electronic circuitry and accurately machined chassis components throughout, your Mode[...]

  • Page 4

    Product Features þ XLR Balanced Input jacks for balanced (Differential Mode™) system configurations þ XLR to RCA Input adapters included þ User-selectable overall gain of 26 or 32 dB þ User-selectable input impedance of 36k Ω (HI) or 600 Ω (LO) þ All internal signal circuitry is totally isolated from chassis and system ground potentials [...]

  • Page 5

    1 2 3 4 5 6 Contents[...]

  • Page 6

    Initial Inspection I nspect the shipping container for damage. If the shipping container , packing material, amplifier or accessories are damaged or missing, notify your dealer and the shipper (if a claim is to be made). Note: Many shippers require notification and an inspection within twenty-four (24) hours of delivery to ascertain the nature of d[...]

  • Page 7

    Front & Rear Panel Function Controls A 1 2[...]

  • Page 8

    Front & Rear Panel Function Controls B efore attempting any system interconnection, please familiarize yourself with the front and rear panel controls of the Model 2 Amplifier . The descriptions below refer to the numbers associated with the features in the diagram above. Front Panel A FRONT P ANEL ST ANDBY/POWER button: Press to operate Amplif[...]

  • Page 9

    2 1 3 Rear Panel Power Connections[...]

  • Page 10

    Installation L ocate the Amplifier as close as possible to its final installation point. Allow access to the rear panel for making connections. The Model 2 Amplifier is convection cooled, eliminating the need for fan or forced air cooling. When operating, the chassis should have at least two (2) inches of air space around the heatsink areas. Multip[...]

  • Page 11

    2 1 Signal Connections 4 3 3[...]

  • Page 12

    Signal Connections T he Model 2 amplifier offers unprecedented compatibility with associated audio components. When connecting or disconnecting speaker or interconnect cables, it is only necessary that the FRONT P ANEL ST ANDBY/ POWER button be pressed to switch the amplifier to standby mode. The button will not be illuminated in this mode. 1 When [...]

  • Page 13

    Operation A fter following the procedures outlined in the Installation/Rear Panel Power Connections and Signal Connections sections, the Amplifier can be turned on by pressing the FRONT P ANEL ST ANDBY/POWER button. Allow approximately twenty (20) minutes for the amplifier to reach operating temperature and maximum performance potential. A short wa[...]

  • Page 14

    Performance Specifications Output Power Continuous RMS watts @ 8 ohms 75 watts @ 4 ohms 150 watts Power Bandwidth 0.1 Hz to 160 kHz, -3 dB Slew Rate 80 volts per microsecond THD and Noise Less than 0.05% at rated power Damping Factor Greater than 100, 20 Hz to 20 kHz, 8 ohms Output Current 20 amps continuous, 35 amps peak Overall Gain & Sensiti[...]

  • Page 15

    Basic T roubleshooting A summary of fault conditions, their causes and remedies, are listed below. The Model 2 Amplifier can produce high power levels which, without well designed pr otection circuitry, could damage loudspeaker s. Therefore, most fault conditions which may occur during use will be indicated by the Model 2 r everting to a standby co[...]

  • Page 16

    Condition FRONT P ANEL ST ANDBY/POWER button illuminates normally but RIGHT , LEFT or both Amplifier CHANNELS do no operate or warm up to normal operating temperature. AC MAINS CIRCUIT BREAKER (rear panel) switches off or will not remain on. 50/60 Hz hum noise in loudspeakers. High frequency, random or scratching noise in loudspeakers. Cause Intern[...]

  • Page 17

    I f you have any additional questions regarding installation or operation, please contact your authorized Jeff Rowland Design Group Dealer . JEFF RO WL AND DESI GN G ROUP[...]