uPA-2 STEREO USER’S GUIDE
Table of Contents Safety Precautions 3 NEC (National Electrical Code) Standards 5 A Note for the Cable Television (CATV) Installer Antenna Grounding Outside the House 5 5 Thank You for your UPA-2 Purchase 6 Unpacking the UPA-2 7 Inventory Recording the Serial Number 7 7 Emotiva UPA-2 Two Channel Amplifier 8 Professional 250 Watt Amplifier Features 8 Front Panel Layout 8 Rear Panel Layout 9 Installation and Connections 10 AC Power Considerations Physical Placement Input Connection Consid
Series Parallel Technical Note about Multiple Speaker Connections Troubleshooting Guide 15 15 16 17 No Sound (from one or more speakers connected to the UPA-2) The amplifier shuts down often or the line circuit breaker trips often Poor Bass Performance From Full Range Speakers connected to the UPA-2 Turn-on and turn-off thumps “Hum” Noises in the Speakers Other Probable Causes of Noise One or more RED lights on the Front Panel are Blinking Problems with the whole A/V System 17 17 17 18 18 19 19 19 UPA
Safety Precautions Read this User’s Guide thoroughly before attempting to install and configure the Emotiva UPA2 Amplifier. All the safety and operation instructions should be read before any operation of the component(s) begin. After successful installation and configuration of the Emotiva UPA-2 Amplifier, be sure to retain this manual in a safe place for any future reference needs. All warnings on the Emotiva UPA-2 Amplifier and in these operating instructions should be followed.
The user should not attempt to service the UPA-2 Amplifier beyond the means described in this Owner’s Guide. All other servicing should be referred to qualified service personnel. To prevent electric shock, do not use this polarized plug with an extension cord, receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure.
NEC (National Electrical Code) Standards A Note for the Cable Television (CATV) Installer This reminder is to call the CATV system installer’s attention to Article 820-40 of the NEC that provides guidelines for proper grounding and in particular, specifies that the cable ground shall be connected to the grounding system of the building as close to the point of cable entry as practical.
Thank You for your UPA-2 Purchase Dear Home Entertainment Enthusiast, Thank you for purchasing the Emotiva UPA-2 Amplifier. We sincerely believe that it offers you outstanding performance and value. Emotiva products are engineered and produced with the highest quality materials and incorporate the latest technology. We think you will find the Emotiva UPA-2 meets or exceeds your expectations. The Emotiva UPA-2 is a flexible, high performance amplifier.
Unpacking the UPA-2 The Emotiva UPA-2 Amplifier should reach you in flawless condition. If you notice any shipping damage or other issues upon unpacking the unit, please contact your Emotiva Retailer immediately. Inventory Included with your UPA-2 amplifier should be an IEC Class 1, 2 prong power cord, and this User’s Guide. Please take a moment to make sure all the items are there in the packaging. Gently lift out the unit and remove all the packing material and accessories.
Emotiva UPA-2 Stereo Power Amplifier Professional 250 Watt Amplifier Features • Audiophile Quality Stereo Power Amplifier • Two125 watt channels of Amplification • Low noise 300VA Toroidal power transformer • Complementary, discrete power amplifier design incorporating high current, high speed, ON Semiconductor power devices • Channel status indicators for standby, operate, and fault • Completely stable into 4 ohm loads • Signal to Noise Ratio is greater than 100dB, unweighted reference full output • THD .
Rear Panel Layout RCA Audio Inputs/Outputs These inputs are for signal input for each channel on the UPA-2. Simply connect the appropriate input to your preamplifier/processor or other preamp level audio device. Loop outputs and inputs are paralleled. Level Control When set to Minimum,the amplifier has no output;when set to Maximum, it has 32dB of gain and will match the gain structure of all the other Emotive Amplifiers.(Note:Loop out is not controlled by it.
Installation and Connections AC Power Considerations Ensure that the unit is plugged into an outlet capable of supplying the correct voltage and current specified for your model. Remember to account for the electrical power that other components will require if they share a common wall socket or electrical circuit. The majority of household electrical sockets in places other than the kitchen and garage are 15 amperes maximum. Most DVD players and other source components are fairly low current items.
Input Connection Considerations Whenever possible, keep preamplifier level audio cables away from electrical power cords by at least a few inches. It’s more important with amplifiers as the AC power cords are carrying much more current than other source and preamplifier components, which means there is a larger degree of noise or “hum” potential with the amplifier power cord in close proximity.
Connection Diagrams Connecting a 7.1 Preamp/Processor Connection using a 7.
Connecting a 7.1 Preamp/Processor Connection using a 7.
12V Trigger Connections The 12 VDC trigger connection shown can be used to turn the amplifier on when the preamplifier turns on. UPA-2 could also be used to turn on another amplifier,when it is on. This trigger will actually trigger with any switched DC Voltage from 5-12 VDC (The trigger output voltage is 12VDC 500mA MAX); however, the majority of home theater components use a standard 12 VDC trigger connection for this function. This is the preferred connection as it has the greatest degree of reliability.
Series and Parallel Speaker Connections Whenever connecting more than one speaker per channel to an amplifier (regardless of the brand), you must consider the way in which the amplifier will be impacted by adding the additional speaker(s). Additionally, speakers with dual voice coils also apply to this consideration. Two voice coils in a single speaker also cause different reactions from an amplifier depending on the way in which they connect to the amplifier.
• The negative output terminal of the right channel connects to the negative input post of the first speaker and to the negative post of the second speaker. The total impedance of equal speakers in parallel is found by dividing the impedance of one speaker by the number of speakers. For example, two eight ohm speakers in parallel is a four ohm load (eight ohms divided by two), four eight ohm speakers in parallel is a two ohm load (eight ohms divided by four).
Troubleshooting Guide The Emotiva UPA-2 is expertly designed and built to provide years of trouble-free performance. Most problems that occur can usually be solved by checking your setup or making sure that the audio and video components connected to the amplifier are on and fully operational. The following information will help you deal with common setup problems you may experience during normal use of your unit. If problems persist, contact Emotiva for help.
• Check that the speaker wires have been connected correctly: Make sure that the positive of each speaker connects to a positive output of the amplifier, and the negative of each speaker connects to a negative output. If one speaker is wired incorrectly, than it will be “out of phase” with the others, resulting in poor bass performance. DOUBLE CHECK ALL THE SPEAKER CONNECTIONS!! Turn-on and turn-off thumps • Plug the amplifier into an un-switched AC outlet, and use the 3.
Ground loop isolators are available for audio lines and video devices. If you need assistance, contact Emotiva . Although this is not always an ideal solution, the grounding differences between certain home entertainment components sometimes require ground loop isolators. This is the exception rather than the rule. Other Probable Causes of Noise Speaker noise may also be caused by interference or noise on your AC line.
UPA-2 Technical Specifications Rated Power Output: (All Channels Driven @ 1Khz, 115VAC/ 60HZ supply, THD noted) Channels 1-2 125 Watts into 8 Ohms (0.04%THD) 225 Watts into 4 Ohms (0.04%THD) Frequency Response: 20-20Khz: +/-0.1dB 10-100Khz: +1/-3dB Total Harmonic Distortion (THD): (80kHz measurement bandwidth) Channels 1-2: <0.
Limited Warranty The Emotiva UPA-2 has been created to perform flawlessly for many years. As a result of this quality and craftsmanship, Emotiva offers the following warranty to owners of the UPA-2. Emotiva Audio warrants the UPA-2 to be free from defects in materials and workmanship for a period of five years from the original date of purchase. The following items are excluded from, or will void this warranty coverage: 1) Damage to the UPA-2 caused during shipment and handling.
Emotiva Audio Corp. 106 Mission Court, Suite 101 Franklin, TN 37067 Toll Free Website - Rev 1.06 12/2008 (877) EMO-TECH www.emotiva.
