Page 2 - TABLE OF CONTENTS
CONGRATULATIONS! Thank you for purchasing the Niles SI-245, one of the most flexible and conve-nient amplifiers ever offered. Like all Niles products, the SI-245 is built to thehighest standards of quality control and reliability. With proper installation andoperation, you'll enjoy years of trouble-...
Page 3 - INTRODUCTION; Systems Integration Amplifier
INTRODUCTION The SI-245 is a member of the award-winning Niles Systems Integration Amplifierfamily. It is designed for use in home theaters and whole house audio systems,and is especially suited for use as a “zone” amplifier. Niles specifically designsSystems Integration Amplifiers to solve the prob...
Page 4 - FEATURES AND BENEFITS; FEA
FEATURES AND BENEFITS Real World Power The SI-245 delivers 45 watts per channel at 8 Ohms and 70 watts per channel at 4 Ohms. You’ll get tremendous bass and dynamics from every pair of speakers powered by an SI-245. Transparent Sound The audio circuitry of the SI-245 is constructed using the finest ...
Page 6 - INSTALLATION CONSIDERATIONS; Placement; Figure 1
INSTALLATION CONSIDERATIONS Placement Place the SI-245 on a flat level surface like a table or shelf. It should be placedupright so that its weight rests on the four attached feet. Placing the weight of theamplifier on the rear or front panel for even an instant may result in damage tothe amplifier'...
Page 9 - TECH TIP
INST ALLA TION CONSIDERA TIONS 8 Cable and Wire It will be easier to reconfigure or troubleshoot your system in the future if youlabel the cables and wires for their destination or source, rather than which ter-minal of the SI-245 they are connected to. The SI-245 connects to your preamp source via ...
Page 10 - FRONT AND REAR P
Red “Power” LED confirms the amplifier isconnected to a live AC power outlet. (andthat the master power switch is on). Green “Active” LED lights when theamplifier circuitry has been turned on bythe Turn-On circuits. Front panel “Master Power” switch turnsoff the entire amplifier, including theTurn-O...
Page 12 - INSTALLATION; Setting the Turn- On Mode Switch; INST
INSTALLATION Setting the Turn- On Mode Switch The SI-245 has three turn-on modes. Select the mode you wish to use by slidingthe mode switch. See Installation Considerations on page 6 for more informationabout each of the turn-on modes. Control Output This terminal provides a 12v DC signal suit-able ...
Page 16 - OPERATION; OPERA
OPERATION Power Switch The front panel switch is a master or "vacation" power switch. No matter whichturn-on mode you have selected, the master power switch will turn off all cir-cuitry —including the sensing circuitry. If you will not be using the amplifier foran extended period of time, tu...
Page 17 - TROUBLESHOOTING GUIDE
16 TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE When there is a problem consult this guide first. If the problem persists, or youhave additional questions, call your local Niles dealer or Niles Technical Supportat 1-800-289-4434. The most common problems relate to hook up. Call fromyour telephone ext...
Page 19 - SPECIFICATIONS
SPECIFICA TIONS 18 SPECIFICATIONS Design Principle Linear voltage/current amplification. Continuous Average Power Output 45 watts per channel RMS at 8 ohms.70 watts per channel RMS at 4 ohms. Input Impedance 22K ohms Input Sensitivity .77V for 8 Ω rated output Overall Voltage Gain 28 dB Frequency Re...
Page 20 - Niles Audio Corporation
Niles Audio Corporation www.nilesaudio.com 12331 S.W. 130 Street Miami, Florida 33186 Tel: (305) 238-4373 Fax: (305) 238-0185 © 1998 Niles Audio Corporation. Because Niles strives to continuously improve itsproducts, Niles reserves the right to change product specifications without notice.Niles and ...