Instruction/ maintenance manual of the product 275 Parasound
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Model 275 T w o Channel P o w er Amplier 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.
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.
TABLE OF CONTENTS 1 Unpacking and Accessories .......................................... 2 115v – 230v AC Selector Switch ........................................ 3 Ventilation Requirements ........................................... 3 Rack Mounting .
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Notes: CONNECTION AND SETUP NOTES 13.
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.
An important point after buying a device Parasound 275 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Parasound 275 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 Parasound 275 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Parasound 275 you will learn all the available features of the product, as well as information on its operation. The information that you get Parasound 275 will certainly help you make a decision on the purchase.
If you already are a holder of Parasound 275, 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 Parasound 275.
However, one of the most important roles played by the user manual is to help in solving problems with Parasound 275. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Parasound 275 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
