Emotiva UPA-2 manual Series and Parallel Speaker Connections

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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 connection of more than one speaker per channel will tend to degrade the speaker’s frequency response and may make the amplifier run hot. For the best sonic results, use one speaker per amplifier channel. If you must connect more than one speaker per channel, there are two methods in which to do so: Series or Parallel.

Series

A series connection is established when voice coils are connected in a string – end to end – so there’s only one way for audio signals to flow “in” and only one way for audio signals to flow “out”. For example, if you were to series-connect two speakers to the front right channel of the amplifier:

•The positive output terminal of the right channel connects to the positive input post of the first speaker.

•The negative input post of the first speaker connects to the positive input post of the second speaker.

•The negative input post of the second speaker connects to the negative output terminal of the right channel.

An example of a SERIES

connection between two

speakers

The total impedance of speakers in series is found by adding their impedances together. For example, two four ohm speakers in series is an eight ohm load. Series connections are easier on the amplifier than parallel connections as the total impedance is higher than driving a single speaker.

Parallel

A parallel circuit is established when voice coils are connected in a way that there are multiple paths for audio signals to flow “in” and multiple paths for audio signals to flow “out”. When speakers are connected in parallel, the total resistance at the amplifier is proportionally divided based on the value of each individual voice coil resistance. The term “divided” simply means all of the values together in parallel are a SMALLER value than each all by itself. For example, if you were to parallel connect two speakers to the front right channel of the amplifier:

•The positive output terminal of the right channel connects to the positive input post of the first speaker and to the positive post of the second speaker.

An example of a PARALLEL

connection between two

speakers

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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 Inventory Unpacking the UPA-2Recording the Serial Number Emotiva UPA-2 Stereo Power Amplifier Front Panel LayoutRear Panel Layout RCA Audio Inputs/OutputsAC Power Considerations Installation and ConnectionsPhysical Placement Output Connection Considerations Input Connection ConsiderationsConnection Tips for Superior Sound Connecting a 7.1 Preamp/Processor Connection DiagramsConnection using a 7.1channel preout to UPA-2 Connection using a 7.1 channel preout to UPA-2 12V Trigger Connections Series Series and Parallel Speaker ConnectionsParallel 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 SpeakersOther Probable Causes of Noise Problems with the whole A/V SystemOne 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.
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