Episode ES-SUB-MEGA-D8-BLK 8 Inch Dual Subwoofer Amp Wireless

Compact Dual-Driver Bass for Movies and Music

The Episode ES-SUB-MEGA-D8-BLK is a compact, high-output powered subwoofer designed for home theaters, media rooms, living rooms, and serious two-channel music systems.

Its sealed cabinet contains two active 8-inch drivers powered by a 650W RMS BASH hybrid amplifier. Automatic room EQ, app-based DSP control, balanced XLR inputs, RCA/LFE inputs, speaker-level inputs, Ethernet control, a 12V trigger, and an optional wireless audio connection give the subwoofer flexible integration options.

This is the gloss-black model. The subwoofer includes a built-in wireless receiver, but wireless audio requires the separately sold ES-SUB-WIFI-TX-MEGA transmitter.

Best Use Cases

• Home theaters: Add low-frequency effects and stronger bass impact to movies, streaming content, television, and gaming.
• Media rooms: Gain substantial output from a cabinet that is smaller than the larger MEGA D10 and D12 models.
• Two-channel music systems: Extend the response of bookshelf, monitor, in-wall, or floorstanding speakers into the lowest musical frequencies.
• Systems with balanced outputs: Use the D-Series XLR inputs with a compatible processor, preamplifier, or receiver.
• Rooms with difficult bass behavior: Use the MEGA app and automatic calibration to measure and adjust the subwoofer from the listening position.
• Control-system integration: Use Ethernet/IP control or the 12V trigger with compatible AV and automation equipment.
• Wireless retrofit situations: Add the optional Episode MEGA wireless transmitter when running a new RCA or XLR cable is impractical.

Who Should Buy This?

This is a strong choice if you need deeper bass and higher output than a basic compact subwoofer but do not have room for a large 10-inch, 12-inch, or 15-inch cabinet.

It is particularly suitable for buyers who value sealed-cabinet performance, dual active drivers, app-based setup, automatic EQ, balanced and unbalanced input options, and integration with an AV control system.

Who Should Not Buy This?

This is not a passive subwoofer. It contains its own amplifier and must be connected to AC power.

It is not completely wireless. The built-in wireless receiver handles audio only when paired with the separately sold Episode ES-SUB-WIFI-TX-MEGA transmitter. The subwoofer still requires an AC outlet.

Bluetooth is used for app setup and control. It is not documented as a Bluetooth music-streaming input.

This may not be the right model for a very large theater, a large open-plan room, or a system expected to reach extreme output levels. In those cases, consider the larger MEGA D10, D12, or a properly configured multiple-subwoofer system.

The ES-SUB-MEGA-D8 is designed for dry indoor use. Do not install it outdoors, near water, or in a location exposed to dripping, splashing, excessive humidity, or blocked ventilation.

Sold Individually

The ES-SUB-MEGA-D8-BLK is sold as one complete powered subwoofer.

A single subwoofer may be sufficient for many systems, but two or more properly positioned subwoofers can provide more consistent bass across several seats.

The Episode app can control and calibrate multiple MEGA subwoofers independently.

Dual Active 8-Inch Drivers

The D8 uses two active 8-inch drivers rather than one powered driver and one passive radiator.

Both drivers use aluminum-reinforced paper cones and 1.5-inch voice coils. The dual-driver sealed configuration is designed to provide substantial low-frequency output while reducing cabinet vibration.

The product should be described as a dual active 8-inch subwoofer, not simply as an “8-inch subwoofer,” because the dual-driver configuration is one of its most important performance distinctions.

Sealed Cabinet Design

The ES-SUB-MEGA-D8 uses a sealed enclosure with internal bracing.

A sealed cabinet is commonly selected when controlled transient response, compact dimensions, and integration with music and theater speakers are priorities.

Actual bass performance still depends on placement, room construction, seating position, crossover settings, phase, delay, equalization, and the main speakers.

650W RMS BASH Hybrid Amplification

The built-in BASH hybrid amplifier delivers 650W RMS and 1300W peak power.

The 650W figure is the continuous RMS rating and should be used as the main amplifier specification. The 1300W figure is a peak rating and should not be presented as continuous output.

Because the amplifier is built into the cabinet, no separate subwoofer amplifier is required.

20Hz–250Hz Frequency Response

The published frequency response is 20Hz to 250Hz.

This gives the D8 useful extension into very low bass for movie effects, bass instruments, electronic music, drums, and other demanding content.

Room acoustics can cause some low frequencies to become louder and others to weaken at specific seats. Placement and calibration remain essential even with a subwoofer capable of reaching 20Hz.

Adjustable 40Hz–150Hz Low-Pass Range

The published crossover adjustment range is 40Hz to 150Hz.

The correct setting depends on the low-frequency capability of the main speakers and whether crossover management is performed by an AV receiver, processor, preamplifier, or the subwoofer itself.

When using a receiver’s LFE output and bass-management system, avoid applying conflicting crossover settings in both devices.

Published Output Measurement

Episode publishes a 92 dB measurement using the ANSI/CTA-2010 SPL method at 2 meters.

This measurement should not be confused with ordinary speaker sensitivity. Powered-subwoofer SPL specifications use a different measurement method than passive-speaker sensitivity ratings.

Automatic Room EQ

The Episode MEGA app includes automatic room calibration.

The calibration process uses the mobile device’s microphone and measurement sweeps taken near the subwoofer and at the listening position. The app then displays and applies a correction curve based on the measured result.

The stored equalization remains in memory until it is replaced with a new calibration. Auto EQ can also be turned on or off through the app.

Automatic EQ can improve the measured result at the calibration position, but it cannot completely eliminate every room-mode problem or compensate for unsuitable placement.

Run Subwoofer Calibration Before Receiver Calibration

When the AV receiver or processor also includes an automatic room-calibration system, Episode recommends calibrating the MEGA subwoofer through its app first.

After the subwoofer calibration is complete, run the receiver or processor’s full-room calibration. Final volume, phase, delay, and crossover adjustments can then be made if required.

Episode MEGA Control App

The Episode MEGA app uses Bluetooth Low Energy to connect a compatible iOS or Android device to the subwoofer.

The app provides control over:

• Volume: Balances subwoofer output with the main speakers.
• Preset EQ modes: Selects Normal, Music, Cinema, or Night listening profiles.
• Low-pass frequency: Adjusts the upper operating range of the subwoofer.
• Phase: Helps align the subwoofer with the main speakers.
• Delay: Compensates for differences in physical distance and timing.
• Parametric EQ: Adjusts center frequency, bandwidth, and gain.
• Auto On/Off: Configures signal- or Ethernet-based power behavior.
• Automatic calibration: Measures and applies a room-specific correction curve.

Bluetooth is used for control and configuration through the app. It should not be advertised as a Bluetooth audio-streaming connection.

Four Listening Presets

• Normal: The standard setting for most applications.
• Music: Adds emphasis to the lower bass range.
• Cinema: Boosts frequencies around 50Hz for a more dramatic movie presentation.
• Night: Reduces the maximum subwoofer volume for lower-impact late-night listening.

The preferred mode depends on the source material, room, listening level, and personal preference.

Adjustable Phase and Delay

Phase and delay controls help align the subwoofer’s output with the main speakers at the listening position.

Delay is particularly useful when the subwoofer is physically closer to the listener than the main speakers. Episode notes that 1 millisecond of delay is approximately equivalent to moving the subwoofer 13 inches farther away acoustically.

If the receiver or processor already calculates subwoofer distance and delay during its own calibration, avoid making unnecessary duplicate adjustments.

Parametric Equalizer

The app’s parametric equalizer provides control over center frequency, bandwidth, and gain.

This allows specific bass regions to be reduced or increased after measurement and listening evaluation.

Large boosts should be used cautiously because they increase amplifier demand and driver excursion. Correct placement and reducing excessive peaks are generally safer than attempting to fill a deep acoustic cancellation with extreme EQ.

Automatic Power and Standby

The ES-SUB-MEGA-D8 is configured for automatic signal sensing by default.

It turns on when a suitable bass signal is detected and enters standby after approximately 15 minutes without a signal.

The app allows the signal-sensing sensitivity to be adjusted from approximately 1mV to 10mV and supports auto operation through either signal detection or Ethernet control.

Balanced XLR Inputs

The MEGA D-Series includes balanced XLR inputs for compatible receivers, processors, and preamplifiers.

Balanced connections can be useful for longer signal runs and systems where reduced noise susceptibility is important.

The XLR inputs are a distinguishing feature of the D-Series and should be included prominently in the product specifications.

RCA and LFE Inputs

Stereo RCA inputs support unbalanced line-level connections from compatible audio equipment.

The right RCA input also serves as the dedicated unbalanced LFE connection for a receiver or processor’s subwoofer output.

Use well-shielded RCA cables with secure connectors for wired line-level installations.

Speaker-Level Inputs

Gold-plated five-way binding posts accept speaker-level signals from systems that do not provide a suitable line-level subwoofer output.

These are high-level inputs to the powered subwoofer. They should not be described as outputs for powering passive speakers.

Episode instructs users not to connect more than one input type simultaneously. Do not connect XLR, RCA, and speaker-level sources to the subwoofer at the same time.

Built-In Wireless Receiver

The subwoofer includes a built-in wireless audio receiver.

To use it, connect the separately sold ES-SUB-WIFI-TX-MEGA transmitter to the receiver or processor’s subwoofer or LFE output, then pair the transmitter with the subwoofer.

One transmitter can be paired with up to three compatible MEGA subwoofers.

The transmitter replaces the long source-signal cable. It does not eliminate the AC power connection required by each subwoofer.

Ethernet and IP Control

An RJ45 Ethernet connection supports IP control and integration with compatible automation systems.

IP control can provide basic power control, status information, and supported system functions. Episode publishes control drivers and protocol information for compatible platforms.

The local web interface also provides product information and network settings such as the device name, IP configuration, password, firmware version, MAC address, and service tag.

12V Trigger Input

The D-Series includes a 12V trigger input for reliable remote power control.

When the trigger receives a 12V signal, the subwoofer turns on. When the trigger signal is removed, it turns off.

This provides an alternative to signal sensing or IP-based power control when the receiver or processor has a compatible trigger output.

USB Service Port

The rear USB port is intended for service and future firmware updates.

It is not documented as a USB audio input, phone-charging connection, or music-playback port.

Placement Guidance

Subwoofer placement has a major effect on bass response.

Placing the subwoofer near a wall or corner can increase output through boundary reinforcement, but it can also make some frequencies overly strong while weakening others.

Experiment with several available positions and evaluate the result from the main listening seats before finalizing cable routing and furniture placement.

D-Series Corner Placement

For D-Series dual-driver models placed near a corner, Episode recommends positioning the cabinet at approximately a 45-degree angle and maintaining at least 12 inches of clearance from the corner.

This guidance is intended to support the dual-driver configuration and reduce undesirable interaction with the adjoining walls.

Using Two Subwoofers

Two properly positioned subwoofers can improve bass consistency across several listening positions.

The benefit is not simply additional volume. Multiple subwoofers can help reduce seat-to-seat variation caused by room modes when their placement and calibration are planned correctly.

The MEGA app can control and calibrate multiple compatible subwoofers independently.

Feet and Floor Placement

The ES-SUB-MEGA-D8 includes non-slip rubber feet and carpet spikes.

Use the rubber feet on hard flooring and the supplied spikes when appropriate for carpeted installation.

Confirm that the floor can support the subwoofer’s approximately 48.2 lb weight and that the cabinet remains stable and level.

Power Requirements

• Power connection: Two-prong IEC AC inlet.
• Supported input: 100–120V or 220–240V AC.
• Frequency: 50/60Hz.
• AC power required: Yes, including when wireless audio is used.

Use the correct regional IEC power cord and connect the subwoofer to a suitable indoor AC outlet.

Technical Specifications

• Product type: Powered dual-driver sealed subwoofer.
• Series: Episode MEGA D-Series.
• Model: ES-SUB-MEGA-D8-BLK.
• Sold as: One powered subwoofer.
• Finish: Polished gloss black.
• Drivers: Two active 8-inch woofers.
• Driver material: Aluminum-reinforced paper.
• Voice coil: 1.5 inches.
• Enclosure: Sealed and internally braced.
• Amplifier technology: BASH hybrid.
• Continuous amplifier output: 650W RMS.
• Peak amplifier output: 1300W.
• Frequency response: 20Hz to 250Hz.
• Adjustable low-pass range: 40Hz to 150Hz.
• Published SPL: 92 dB using ANSI/CTA-2010 measurement at 2 meters.
• Balanced inputs: XLR.
• Unbalanced inputs: Stereo RCA with right-channel LFE input.
• High-level inputs: Gold-plated five-way binding posts.
• Wireless receiver: Built in.
• Wireless transmitter: ES-SUB-WIFI-TX-MEGA, sold separately.
• App control: Bluetooth Low Energy with compatible iOS or Android device.
• Ethernet/IP control: Yes.
• 12V trigger: Yes.
• USB: Service and firmware-update use.
• Grilles: Removable cloth grilles.
• Feet: Non-slip rubber feet and carpet spikes.
• Indoor use: Yes.

Dimensions and Weight

• Width: Approximately 14.8 inches.
• Height: Approximately 13.6 inches.
• Depth: Approximately 12.6 inches.
• Weight: Approximately 48.2 lb.

Episode recommends a two-person lift for MEGA subwoofers because of their weight and construction.

Warranty

The official MEGA manual lists a 10/2-year limited warranty: two years for the built-in amplifier and ten years for the woofer and cabinet, subject to Episode’s warranty conditions.

The current online comparison table displays a simplified two-year warranty entry. Review the latest written manufacturer warranty terms before publishing an unconditional warranty statement.

When to Choose Another MEGA Subwoofer

Choose the MEGA S8 when you want a lower-priced single-driver 8-inch model and do not require the D-Series dual-driver design, balanced XLR inputs, or 12V trigger.

Choose the MEGA D10 when greater output and deeper extension are needed for a larger or more demanding space.

Choose the MEGA D12 when maximum low-frequency extension and output in the D-Series are priorities and the room can accommodate the larger, heavier cabinet.

Choose the D8 when cabinet size, dual-driver output, 20Hz extension, balanced connectivity, and advanced integration must be combined in the smallest D-Series enclosure.

Good Products to Pair With This Subwoofer

• Subwoofers to compare additional powered, passive, compact, and architectural options.
• Episode Products for matching architectural speakers, amplifiers, and home-theater components.
• In-Wall & In-Ceiling Speakers for a discreet home-theater or music system.
• Amplifiers for stereo, home-theater, and multi-zone audio systems.
• AV Receivers & Surround Sound for compatible bass management, LFE output, and system processing.
• Power Management Solutions to protect the subwoofer, receiver, processor, television, and source equipment.

Need Help Confirming the Right Subwoofer Size?

Send us the room dimensions, seating layout, main speaker models, receiver or processor model, preferred listening level, and available subwoofer locations. We can help determine whether the MEGA D8, a larger model, or a dual-subwoofer configuration is the better fit.

Is the Episode ES-SUB-MEGA-D8-BLK sold individually?

Yes. It is sold as one complete powered subwoofer.

Is this a passive or powered subwoofer?

It is powered and contains its own 650W RMS amplifier.

How many drivers does it have?

It uses two active 8-inch drivers.

Does “dual 8-inch” mean one active and one passive driver?

No. Episode identifies both 8-inch drivers as active.

What are the drivers made from?

The drivers use aluminum-reinforced paper cones and 1.5-inch voice coils.

Is the cabinet sealed or ported?

It uses a sealed, internally braced cabinet.

How much power does it produce?

The built-in BASH hybrid amplifier is rated at 650W RMS and 1300W peak.

Is it a 1300W continuous subwoofer?

No. The continuous rating is 650W RMS. The 1300W specification is peak power.

What is the frequency response?

The published frequency response is 20Hz to 250Hz.

What is the adjustable crossover range?

The published low-pass adjustment range is 40Hz to 150Hz.

What is the published SPL rating?

Episode publishes 92 dB using the ANSI/CTA-2010 SPL measurement method at 2 meters.

Is that 92 dB figure the same as passive-speaker sensitivity?

No. Powered-subwoofer CTA-2010 SPL measurement is different from a conventional passive-speaker sensitivity specification.

Does the subwoofer include automatic room correction?

Yes. The Episode MEGA app uses measurement sweeps and the mobile device’s microphone to create and apply a correction curve.

Does automatic EQ fix every bass problem?

No. It can improve the measured response, but placement, room geometry, seating position, and acoustic cancellations still affect the result.

Should I run the subwoofer calibration before my receiver’s calibration?

Yes. Episode recommends running the MEGA app calibration first and then running the AV receiver or processor’s complete room-calibration system.

What can be adjusted through the app?

The app controls volume, preset modes, low-pass frequency, phase, delay, parametric EQ, automatic power behavior, and automatic room calibration.

Which app presets are included?

The available presets are Normal, Music, Cinema, and Night.

What does Music mode do?

Episode states that Music mode adds emphasis to the lower bass range.

What does Cinema mode do?

Cinema mode boosts frequencies around 50Hz for a more dramatic presentation.

What does Night mode do?

Night mode reduces the maximum subwoofer volume for lower-impact listening.

Does it include Bluetooth?

It uses Bluetooth Low Energy for the Episode MEGA control and setup app.

Can I stream music to it through Bluetooth?

No Bluetooth audio-streaming capability is documented. Bluetooth is used for app control and configuration.

Is the subwoofer wireless out of the box?

It contains the wireless receiver, but the ES-SUB-WIFI-TX-MEGA transmitter required to send audio wirelessly is sold separately.

Does wireless operation eliminate the power cord?

No. Wireless carries the audio signal only. The powered subwoofer still requires AC power.

How many subwoofers can pair with one transmitter?

Episode states that up to three compatible MEGA subwoofers can pair with one transmitter.

Does the optional wireless transmitter include Bluetooth?

The transmitter sends the subwoofer or LFE audio signal to the built-in wireless receiver. It is separate from the Bluetooth connection used by the control app.

Does it have an RCA input?

Yes. It provides stereo RCA line-level inputs.

Which RCA input is used for LFE?

The right RCA input also serves as the unbalanced LFE input.

Does it have balanced XLR inputs?

Yes. Balanced XLR inputs are included on the MEGA D-Series.

Does it have speaker-level inputs?

Yes. It provides gold-plated five-way binding posts for high-level speaker connections.

Can XLR, RCA, and speaker-level inputs be connected simultaneously?

No. Episode instructs users not to connect more than one set or type of left/right inputs at the same time.

Does it have speaker outputs?

No main-speaker output or passthrough is specified. The binding posts are high-level inputs to the powered subwoofer.

Does it support Ethernet control?

Yes. The RJ45 Ethernet connection supports IP control, status, and compatible automation-system integration.

Does it support a 12V trigger?

Yes. The D-Series provides a 12V trigger input for remote on and off control.

What is the USB port used for?

The USB connection is intended for service and firmware updates, not audio playback.

Does the subwoofer turn on automatically?

Yes. Signal-based Auto On is enabled by default, and Ethernet-based control is also available.

How long before it enters standby?

It enters standby after approximately 15 minutes without a detected audio signal.

Can the signal-sensing sensitivity be adjusted?

Yes. The app provides an adjustment range of approximately 1mV to 10mV.

Does it include phase control?

Yes. Phase is adjustable through the Episode MEGA app.

Does it include delay control?

Yes. Delay can be adjusted through the app to help time-align the subwoofer with the main speakers.

Does it include parametric EQ?

Yes. The app provides adjustments for center frequency, bandwidth, and gain.

Where should the subwoofer be placed?

Test several floor positions near the front of the room and evaluate the bass from the primary listening seats. Walls and corners can increase output but may also make the response uneven.

How should it be positioned near a corner?

For a D-Series dual-driver subwoofer, Episode recommends approximately a 45-degree angle and at least 12 inches of clearance from the corner.

Can it be placed inside a cabinet?

Only when the cabinet provides sufficient space, ventilation, cable access, and acoustic clearance. Enclosing a subwoofer can cause rattles and alter its response.

Does it include carpet spikes?

Yes. It includes non-slip rubber feet and carpet spikes.

Can it be installed outdoors?

No. It is intended for dry indoor use.

Does it require AC power?

Yes. It requires a compatible indoor AC power connection.

What input voltage does it support?

The published specification lists 100–120V or 220–240V AC at 50/60Hz.

What finish is this SKU?

ES-SUB-MEGA-D8-BLK is the polished gloss-black version.

Is a walnut version available?

Episode also offers a separate ES-SUB-MEGA-D8-WLN model with a walnut veneer finish.

What are the dimensions?

It measures approximately 14.8 inches wide, 13.6 inches high, and 12.6 inches deep.

How much does it weigh?

It weighs approximately 48.2 lb.

Is a wall or pivot bracket available?

No official pivot-bracket accessory or 120-degree wall-mount feature is documented for the ES-SUB-MEGA-D8. It is designed as a floor-standing powered subwoofer.

What is the warranty?

The MEGA manual lists two years for the amplifier and ten years for the woofer and cabinet, subject to Episode’s warranty conditions. The current online specification table shows a simplified two-year entry, so the latest manufacturer terms should be verified when warranty coverage is important.

Would a second subwoofer improve the system?

A second properly positioned subwoofer can improve bass consistency across several seats. The result depends on room dimensions, placement, calibration, and the complete system design.

What should I check before ordering?

Check room dimensions, available floor space, receiver or processor outputs, wired or wireless connection method, nearby AC power, main-speaker capabilities, preferred listening level, and whether one D8 or a larger or multiple-subwoofer configuration is appropriate.