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Energy Pro High Power 3 Channel High-Fidelity Power Amplifier – E3H B-Stock Open Box
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Energy Pro High Power 3 (Three) Channel High-Fidelity Power Amplifier E3H
900 watts per channel at 4ohms, and 600 watts per channel at 8ohms, the Energy E3H features a new circuit design and sporting three times the power output of the regular E3 Power Amplifier. Not only does the PRO series of Energy Amplifiers offer raw horsepower, they will sound amazing while doing it with low distortion and noise. Featuring multiple protection circuit designs, with quality that will last for years to come.
Designed specifically for the high-end market, it features superb sound quality, with detailed and natural sound reproduction. Even in large listening environments, low impedance and even low efficiency speakers can be driven with ease.
Nowadays, audio enthusiasts are increasingly seeking higher sound quality. Even the most advanced AV receivers or amplifiers are unable to fully satisfy this ever-growing demand for exceptional audio performance. The Aperion Energy Pro high fidelity power amplifier offers a solution for those looking to enhance their music or movie experience. For instance, by combining 1 E2H and 1 E3H in a classic 5.1 setup, you can enjoy powerful reference-grade sound, precise control, and high-fidelity audio in rooms exceeding 860 square ft.
Back / Front


Why you need the Energy Pro E3H Power Amplifier
The integrated AV receiver combines the functionalities of a pre-amplifier and power amplifier. It not only amplifies the audio signal but also allows for volume adjustment, sound quality adjustment, input source switching, EQ adjustment, and more. On the other hand, a pure power amplifier's main purpose is to amplify the sound signal from the pre-amplifier to drive the speakers. It does not have features such as volume control, sound quality adjustment, and EQ, and needs to be used in conjunction with an independent pre-amplifier.
The integrated pre-amplifier offers a smaller size and lower cost due to its inclusion of both pre-amplifier and power amplifier functions. This makes it suitable for individuals with limited space or budget who do not have high-performance requirements. However, since the integrated pre-amplifier houses everything in a single chassis, its performance and heat dissipation capabilities are limited. As a result, this limitation can impact the stability and lifespan of the integrated AVR.
The Energy power amplifier series by Aperion is dedicated to power amplification, offering higher power output and improved sound quality performance. The circuit board of the power amplifier is constructed with superior quality and precise components, enhancing its overall performance. Additionally, the heat dissipation capabilities are significantly improved, allowing for stable long-term operation.
Moreover, our Energy power amplifiers are compatible with independent pre-amplifiers, enabling users to select different pre-amplifiers from the market to adjust sound quality according to their preferences. This allows for more refined sound quality control without any interference, resulting in enhanced sound details and versatility.
The Energy Pro power amplifier is meticulously crafted for exceptional durability and stability, ensuring seamless operation even in expansive listening spaces. Capable of effortlessly driving large speakers with low impedance and efficiency, the Energy Pro amplifiers deliver a truly immersive music listening experience. Every detail of the music is faithfully reproduced, with remarkable sound clarity and precision that enhances the performance of all genres of music. The discreet design, featuring individual amplifier sections for each channel, enables an unparalleled level of performance. The three channels is powered by a permium high-performance toroidal transformer, capable of handling up to 4140 watts of input power.
This top-tier high-fidelity power amplifier, meticulously designed and built, boasts exceptional durability and long-term stability. It is not only ideal for stereo systems (when paired with a stereo preamplifier), but also seamlessly integrates into your home theater setup. Compatible with all contemporary AV receiver/pre-amplifiers available on the market, it can easily be linked to other Energy power amplifiers through the Trigger Out function.
The Energy Pro E3H serves as a high-power three-channel power amplifier, ideal for driving the front three main channels of a 5.1 or 7.1 channel system or for powering a HiFi stereo system. It boasts improved channel balance, lower noise floor, and overall delivers a purer sound with reduced distortion and increased dynamic range, providing clean and potent power output. All APERION® Energy Series amplifiers come equipped with Aperion’s Soft Switch protection feature. This circuit ensures a gradual power-up process for the amp, preventing your circuit breaker from tripping or straining your home's circuit.
APERION Energy Pro Series amps are passively cooled with large heat sinks for efficiency and low noise operation. Featuring toroidal transformers with bi-filar windings ensures low noise and crosstalk, hallmarks of all Energy amplifiers.
The Energy Pro 3-Channel Power Amplifier brings intensity, impressive dynamics and an open sound stage for your home theater. Equipped with Aperion's premium components and technologies, this amplifier delivers pristine audio performance that is unwaveringly faithful to the source. It also provides enough bandwidth and power reserves to handle whatever you throw at it, so you'll enjoy exceptional audio during even the most audio-intensive movie scenes. With its efficient power consumption and durable design, the amplifier is a welcome addition to any home theater system, and is a perfect companion for any Preamplifier.
Product Features

Class AB Amplifier
All Energy series amplifiers adopt the Class AB design. The core advantage of Class AB amplifiers lies in their ability to balance sound quality and efficiency. By setting a small static bias current, it eliminates the crossover distortion of Class B amplifiers and avoids the inefficiency and high heat of Class A amplifiers. In other words, it features low distortion, high fidelity, high efficiency, and strong driving capability.

Three Channels for Your Front Stage
We designed the E3H to drive the three main speakers that handle most of the crucial tasks in home theater: the left, center, and right channels. This makes it a perfect match for the front stage in a 5.1, 7.1 Dolby Atmos, or DTS:X setup, where clarity, dynamics, and dialogue are essential.

Modular Design
The E3H is intricately designed with our power modular system, showcasing two robust single-channel modules that operate autonomously. Each module is engineered for effortless disassembly, allowing for straightforward maintenance and upgrades. This thoughtful design not only enhances operational efficiency but also ensures that components are easily accessible and serviceable, making the E3H a user-friendly solution for high-power applications.

Easy System Intergration
Connect the E3H to your AV processor or AVR utilizing the PRE OUT connections on your AVR, then select either balanced XLR or unbalanced RCA for each channel using the input selector switches on the rear panel. Should you want a seamless experience, use theIncluded trigger cable, allowing your new Energy E3H to start-up when you power on your AV Processor or AVR.

Protection Circuits
The Energy power amplifier's protection circuitry's are designed to ensure uninterrupted operation during normal listening while preventing common electronic issues such as overheating, input overvoltage, DC current, and short circuits in speaker connections. Four major protection features safeguard your system.

A Modern Visual
Featuring a sleek and contemporary design, which harmoniously integrates with your existing audio systems, It's clean lines and elegant finish not only enhance its visual appeal but also make a striking statement in any room. The Energy E3H amplifier not only looks stunning but also delivers impressive performance, elevating your audio experience to new heights.

Bespoke Toroidal Transformer and Capacitors
Featuring an over-sized toroidal transformer with bi-filar windings ensures low noise and crosstalk, hallmarks of all Energy Power Amplifiers.
Using high current supply capacitors allows for maximum response to sonic transients. Action films come to life as you hear a thunderous explosion - the amp carries the weight and the large capacitors intervene as short-term electrical storage and "cushion" the peak, allowing the sound effects their own dimension and dynamic.

Passive Cooling
The Energy E3H utilizes oversized heat sinks, instead of fans, to keep your amplifier as cool and as silent as possible. No fans means less dust, a longer operating life for your equipment, and less distractions during your HiFi movie watching time.

Remote Trigger
Trigger Off On Switch
Should you want to use the included 12V Remote Trigger Cable, ensure that you flip the switch to the "ON" position to allow the 12V signal to passthrough.
Trigger In
Utilizing the remote trigger allows the Energy E3H Power Amp to be powered on automatically when the connected source or preamplifier device is turned on.
Trigger Output
Have more than one Power Amplifier? The Trigger Output allows you to link out to another amplifier via a 1/8" 12V Trigger Cable.

XLR & RCA Inputs
Use the UNBALANCED RCA or BALANCED XLR INPUT jacks to connect to the outputs of a preamplifier or other control device.

LED Logo Design
Featuring a novel Aperion Logo LED indicator design, with backlit lights covering the entire front logo and around the power button. After powering the Amplifier on, there will be a white light, gradually dimming to dark after aproximately 20-30 seconds. In standby mode the light will showcase a dim red light.

Hydraulic Magnetic Circuit Breaker
The hydraulic magnetic circuit breaker is a unique electrical protection device that integrates overload protection and fault protection in one mechanism, eliminating the need for separate thermal and magnetic mechanisms for each function. It controls the current flow to each amplifier bank, automatically switching off in case of an overload. To reset the amplifier, lower the volume, and manually switch the breaker back to the "ON" position.
Getting to Know the Rear Panel
1. Input Selector Switch
Selects either the BALANCED INPUT (XLR) or the UN-BALANCED (RCA) INPUT jack.
2. Unbalanced RCA Audio Inputs
Use the UNBALANCED INPUT jacks to connect to the out-puts of a preamplifier, receiver with preout connections, CD player, or other source device with RCA style outputs.
3. Balanced XLR Audio Inputs
Use the BALANCED INPUT jacks to connect to the outputs of a preamplifier or other control device with XLR outputs.
4. Trigger Input and Output Port
Trigger Input: This allows the amplifier controlled by a source or preamplifier device. Trigger Output: Link out to anther amplifier via 1/8" mono minicable.
5. Product Serial Number
This is where we attach the product serial number. All Aperion products come with a serial number sticker. This sticker is like the product's identification information and is related to your after-sales service. Please keep it and do not remove it.
6. Speaker Outputs
Use the OUTPUT binding posts to connect the amplifier to your Speakers, red for positive, black for negative.
7. Hydraulic Magnetic Circuit Breaker & Master Power Switch
The hydraulic magnetic circuit breaker is a specialized type of electrical protection device that combines overload protection and fault protection into a single mechanism, instead of using separate thermal and magnetic mechanisms for each function.
Turns the current to each bank of the amplifier on or off.
If you meet an overload situation, the switch will automatically jump to the Off position, in this case, you need to turn down the sound volume, and then manually put the switch up to "ON" position to restart the amplifier.
8. AC Input
Use the included power cords to connect your amplifier to an AC power source.
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Specifications & Features
Specifications
Type: High Power 3 Channel Power Amplifier
Power Output (RMS) @ 1 Channel Driven: 700W (8Ω, 1 Channel), 1000W (4Ω, 1 Channel)
Power Output (RMS) @ All Channels Driven: 600W (8Ω, All Channel), 900W (4Ω, All Channel)
Connections: RCA Inputs and Balanced XLR-Inputs
SNR: 96dB/RCA, 108dB/XLR
Total Harmonic Distortion (THD+N): ≤0.015% (Measured during peak power at 1 kHz)
Frequency Response (+/-1dB): 10 Hz-32 Khz
Power Supply: 110 - 220 VAC (Switches and Detects Automatically)
Transformer: Dual High-performance toroidal transformer
Peak Power Consumption: 4140W
Standby Consumption: <0.5W
Input Sensitivity: 1.2 V for Full Rated Power@8 ohms
Load Impedance: 4 - 16 ohms
Input Impedance: Nominally 50kΩ
Remote Trigger Voltage: 5-24V
Capacitance: 80000 µF per channel
Product Weight: 81.6 lb / 37 kg
Product Dimension: H 9.1" x W 17.2" x D 17" / H 230mm x W 437mm x D 432mm
Shipping Weight: 91.5 lb / 41.5 kg
Shipping Dimension: L 24" x W 22" x D 14" / L 600mm x W 560mm x H 360mm
Class AB 3 Channel Power Amplifier
The E3H is a three-channel power amplifier, and is perfect for powering the front three main channels of a 5.1 or 7.1 channel system, or Dolby Atmos / DTS:X home theater system.
High Effective Output Power
The Aperion Audio Energy Pro E3H 3-Channel High-Fidelity Power Amplifier is a high-powered animal, with 900 Watts RMS per channel at 4 ohms, and 600 Watts RMS per channel at 8 ohms, giving your speakers a whole new world of headroom and performance.
High-Fidelity Sound Quality
Designed specifically for the Hi-Fi market, the Energy E3H features superb sound quality, with detailed and natural sound reproduction without adding any coloration. Even in a large listening environments, low impedance or low efficiency speakers, can all be easily driven by this monster of a Power Amplifier.
Remote Trigger
Trigger Off On Switch: Should you want to use the included 12V Remote Trigger Cable, ensure that you flip the switch to the "ON" position to allow the 12V signal to passthrough.
Trigger In: Utilizing the remote trigger allows the Energy E7 Power Amp to be powered on automatically when the connected source or preamplifier device is turned on.
Trigger Output: Have more than one Power Amplifier? The Trigger Output allows you to link out to another amplifier via a 1/8" 12V Trigger Cable.
LED Logo
The Logo on the front of your Amplifier turns on as a white light to signify that it has powered on, gradually dimming until off after 20-30 seconds; a red light means it is currently in Stand By mode
Protection Circuits
Overheating Protection Circuit: The power amplifier is intended to operate within a certain temperature range. If the ambient temperature rises excessively or if there is a malfunction, the device will automatically curtail the output when it identifies that the internal temperature has exceeded the specified limit. The operation will only resume once the amplifier's temperature has reverted to the rated level.
DC Current Protection: In cases where the input signal has a considerable DC voltage component, the power amplifier will automatically restrict the DC output voltage to safeguard the loudspeaker drivers from harm.
Overcurrent Protection: Safeguards equipment from damage when there is an unusual rise in output current.
Load Short-Circuit Protection: In instances where the power amplifier's output circuitry goes into a short-circuit state—particularly at elevated volume levels—the load on the amplifier surges dramatically. This leads the amplifier to engage a protection mode to avoid damaging the amplification circuitry.
Hydraulic Magnetic Circuit Breaker
The hydraulic magnetic circuit breaker serves as a distinctive electrical protection tool that merges overload and fault protection within one mechanism, thus eliminating the requirement for separate thermal and magnetic systems for each role. It manages the current flow to each amplifier bank, automatically turning off in the event of an overload. To reset the amplifier, simply lower the volume and manually switch the breaker back to the "ON" position.
Power Dynamics
The Energy Pro E3H 3 Channel Power Amplifier is engineered to produce crisp and pure audio throughout a vast dynamic range, accurately conveying the softest whispers, the most intense peaks, and everything in between.
XLR & RCA Input
Easily connect the Energy Pro E3H Three Channel Power Amplifier to your PreAmp or Receiver using either Unbalanced RCA Interconnects, or Balanced XLR cables. Simply flip the switch to "XLR" or "RCA" depending on what you are using.
To power up your passive speakers, simply use your speaker cable of choice and connect them to the heavy-duty 5-way gold plated binding post terminals using either; bare wire, banana plugs, spade connectors, round pins, or flat pins.
5-way binding posts
Aperion customized audiophile-grade, gold-plated, 5-way binding posts.
Passive Cooling
The Energy E3H opts for massively oversized heat sinks rather than fans to keep your amplifier cool and quiet. This fanless approach means less dust, a longer operational life for your devices, and fewer distractions while watching movies.
Toroidal Transformers
Featuring toroidal transformers with bi-filar windings ensures low noise and crosstalk, hallmarks of all Energy amplifiers.
High Current Supply Capacitors
Using high current supply capacitors allows for maximum response to sonic transients. Action films come to life as you hear a thunderous explosion - the amp carries the weight and the large capacitors intervene as short-term electrical storage and "cushion" the peak, allowing the sound effects their own dimension and dynamic.
Warranty and Downloads
Five (5) year warranty and lifetime maintenance and support.
FAQs
Will the E3H overheat during long movie or music sessions?
The E3H is highly unlikely to overheat if basic ventilation is allowed. The E3H uses large passive heat sinks, an oversized toroidal transformer and 80,000 µF per channel capacitance for stable high-fidelity output, so it runs cool without the use of a fan. We recommend to give at least 4 - 8 inches of clearance, while avoiding closed cabinets if possible.
Can the E3H drive large, low-sensitivity speakers in a big room?
Yes—the Energy Pro 3-channel power amplifier is built for headroom. You get RMS 600W at 8Ω, RMS 900W at 4Ω, all-channels driven, and a 4–16Ω load range, so it can drive low-sensitivity speakers in large rooms.
How do I connect the E3H to my preamp or AV receiver?
Use your preamp or AV processor’s pre-outs into the E3H’s XLR (preferred) or RCA inputs. The 1/8" trigger cable (5–24V) lets you daisy-chain power-on with multiple amps. If a specific configuration feels undefined, contact Aperion support before wiring.
Do I need a dedicated rack fan for the E3H?
Not necessarily. The E3H’s passive heat sinks handle normal home-theater duty without onboard fans, but rack installations with little airflow or stacked amps benefit from forced ventilation. We also recommend keeping a 4" - 8" clearance around the chassis.
Is upgrading from my integrated AVR to the E3H worth it?
Short answer? Yes. If you want cleaner, higher continuous power and more headroom for your LCR channels, yes—the Aperion E3H offers dedicated amplification (RMS 600W/8Ω, RMS 900W/4Ω, all-channels driven), an oversized toroidal transformer and massive per-channel capacitance for tighter dynamics and lower distortion than most AVRs and Power Amplifiers.
Why should I choose Aperion Audio?
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