Parasound 275 manual

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[...]

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[...]

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 ..........[...]

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[...]

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[...]

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[...]

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[...]

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[...]

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 [...]

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[...]

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[...]

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[...]

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[...]

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[...]

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

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