Emotiva manual Troubleshooting Guide, No Sound from one or more speakers connected to the UPA-2

Page 18

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.

No Sound (from one or more speakers connected to the UPA-2)

•Speaker cables may have come undone. Turn off your system and check the cables, and tighten the amplifier and speaker binding posts.

•Damaged audio cable.

•The preamplifier volume level is low for the channels concerned. Recheck the preamplifier calibration procedure.

•A preamplifier Mute switch may be on, or an external processor loop or a tape monitor loop is engaged.

•Check that your preamplifier or source is running the correct surround sound mode. Maybe it is set for 2-channel stereo when you were expecting 5.1 surround sound.

•Check in case any missing channels have been turned off in a preamplifier setup menu. For example, the center amplifier channel will not receive a signal if the preamplifier has been set to “Phantom.”

•If the unit is not on, the ON/OFFswitch on the UPA-2 might be in the off position.

•A internal fuse on the unit may have blown. Contact Emotiva for assistance.

The amplifier shuts down often or the line circuit breaker trips often

•Check that the positive and negative speaker wires are not shorted together.

•Make sure that no speakers are shorted internally. If you have an ohm-meter, disconnect the speaker wires and measure the resistance between the speaker’s positive and negative terminals. Measure all speakers and check their impedance speci fications. If necessary, review the “Series and Parallel Connections” section of this manual.

•If you have connected speakers in parallel, the overall impedance may be too low. It is recommended that you rearrange the speakers in series to increase the overall impedance, thus taking some of the load off the amplifier.

•Make sure that the amplifier has good ventilation and is not overheating. Allow good airflow underneath wherever possible. If the amplifier is in a closed rack, open up the rear panel or use a quiet fan for improved ventilation.

Poor Bass Performance from Full Range Speakers connected to UPA-2

•Make sure that your preamplifier does not have the bass (tone control) level turned down.

•Many surround preamplifiers have controls which can direct all the bass to subwoofers, or let your main speakers play the full range. Make sure that the preamplifier has been correctly set. If you are not using a subwoofer, set the speaker options to “Large” where possible.

Page 17

Page 17 Page 19
Image 18
Page 17 Page 19
Contents UPA-2 Table of Contents UPA-2 Technical Specifications Limited Warranty Safety Precautions Toll Free 877 EMO-TECH NEC National Electrical Code Standards Antenna Grounding Outside the HouseThank You for your UPA-2 Purchase Unpacking the UPA-2 InventoryRecording the Serial Number Emotiva UPA-2 Stereo Power Amplifier Front Panel LayoutRear Panel Layout RCA Audio Inputs/OutputsInstallation and Connections AC Power ConsiderationsPhysical Placement Input Connection Considerations Output Connection ConsiderationsConnection Tips for Superior Sound Connection Diagrams Connecting a 7.1 Preamp/ProcessorConnection using a 7.1channel preout to UPA-2 Connection using a 7.1 channel preout to UPA-2 12V Trigger Connections Series and Parallel Speaker Connections SeriesParallel Technical Note about Multiple Speaker Connections Troubleshooting Guide No Sound from one or more speakers connected to the UPA-2Turn-on and turn-off thumps Hum Noises in the SpeakersProblems with the whole A/V System Other Probable Causes of NoiseOne or more RED lights on the Front Panel are Blinking UPA-2 Technical Specifications Limited Warranty Emotiva Audio Corp Emotiva DisclosureEmotiva Audio Corp

UPA-2 specifications

The Emotiva UPA-2 is a versatile and powerful two-channel power amplifier designed to elevate your audio experience. Offering a combination of high-performance specifications and exceptional build quality, it is an ideal choice for both music enthusiasts and home theater aficionados looking to enhance their sound systems.

One of the standout features of the UPA-2 is its robust power output. It delivers a continuous power of 125 watts per channel into 8 ohms, and an impressive 200 watts per channel into 4 ohms. This high power output ensures that even the most demanding speakers can be driven with ease, providing clarity and detail across the audio spectrum. Whether you are listening to intricate orchestral compositions or thumping bass-heavy tracks, the UPA-2 is designed to reproduce audio accurately and without distortion.

The UPA-2 employs a high-quality Class A/B amplifier design, which combines the best characteristics of both Class A and Class B technologies. This results in efficient operation without compromising sound quality. The amplifier features an advanced Thermal Management System, ensuring it remains cool and reliable even during extended listening sessions. Additionally, its dual mono construction minimizes crosstalk between channels, leading to a clearer stereo image.

Another noteworthy characteristic of the UPA-2 is its solid build quality. Encased in a sturdy chassis, it is designed to withstand the rigors of daily use while providing a sleek and modern aesthetic. The amplifier features gold-plated RCA inputs and a detachable power cord for added convenience and connectivity. Furthermore, the UPA-2 is equipped with a comprehensive protection circuitry system, safeguarding against potential overcurrents, overheating, and short circuits.

In terms of compatibility, the Emotiva UPA-2 can seamlessly integrate into a variety of audio setups. It pairs well with both high-efficiency speakers and demanding high-fidelity systems, making it a versatile choice for various listening environments. The amplifier's balanced XLR inputs also support professional-grade equipment, further enhancing its utility.

Ultimately, the Emotiva UPA-2 stands out for its combination of power, efficiency, and sound quality. Its thoughtful engineering and feature set make it an exceptional choice for anyone looking to enhance their audio experience, proving that it truly deserves a place in any serious music lover's setup.
Top Page Image Contents