1. Introduction
Thank you for choosing the ADAM Audio A77H Powered Studio Monitor. This manual provides essential information for the safe and efficient operation of your new studio monitor. The A77H is a 3-way midfield monitor, featuring two 7-inch woofers, a 3.5-inch midrange driver, and an X-ART ribbon tweeter, designed to deliver precise audio reproduction for professional studio environments.
2. Important Safety Instructions
- Read these instructions thoroughly before operating the device.
- Keep these instructions for future reference.
- Heed all warnings on the product and in this manual.
- Follow all instructions.
- Do not use this apparatus near water.
- Clean only with a dry cloth.
- Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
- Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
- Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
- Only use attachments/accessories specified by the manufacturer.
- Unplug this apparatus during lightning storms or when unused for long periods of time.
- Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
3. Package Contents
Please check that your package contains the following items:
- 1 x ADAM Audio A77H 3-way dual 7-inch powered studio monitor
- 2 x Power cables
- User Manual (this document)
4. Product Overview
4.1 Front Panel
The front panel of the A77H features the primary acoustic components: two 7-inch woofers, a 3.5-inch midrange driver, and the X-ART ribbon tweeter. The ADAM Audio logo is also present.

Figure 4.1: Front view of the ADAM Audio A77H studio monitor.
4.2 Rear Panel
The rear panel provides all necessary connections and controls for power, audio input, and room adaptation settings.

Figure 4.2: Rear view of the ADAM Audio A77H studio monitor with controls and connections.
- Audio IN: XLR and RCA input connectors for audio signals.
- Input Select: Switch to choose between XLR and RCA inputs.
- Remote Control (Ethernet): RJ45 port for connecting to a computer for DSP control via A Control software.
- Room Adaptation: DSP controls including Desk, Presence, and Treble adjustments to fine-tune the monitor's response to your acoustic environment.
- Voicing: Selectable sound profiles (e.g., Pure, UNR, Ext) for different listening preferences or applications.
- Level: Rotary knob to adjust the overall output level of the monitor.
- Power Inlet & Switch: IEC power connector and main power switch.
5. Setup
5.1 Placement
The A77H is designed as a midfield monitor and should be placed horizontally. Optimal placement is crucial for accurate stereo imaging and frequency response. Position the monitors symmetrically in your listening environment, forming an equilateral triangle with your listening position. Ensure the X-ART tweeter is at ear level.

Figure 5.1: Example of A77H placement in a studio setup.
The X-ART tweeter on the A77H is rotatable. If vertical placement is necessary, rotate the tweeter assembly to maintain optimal dispersion characteristics. Refer to the detailed instructions in the full manual for tweeter rotation.
5.2 Connections
- Power: Connect the provided power cable to the IEC inlet on the rear panel and then to a suitable AC power outlet. Ensure the power switch is in the OFF position before connecting.
- Audio Input: Connect your audio source (e.g., audio interface, mixer) to the XLR or RCA input connectors on the rear panel. Use high-quality balanced XLR cables for professional setups.
- Remote Control (Optional): For advanced DSP control and firmware updates, connect an Ethernet cable from the "Remote Control" port to your computer or network.
5.3 Initial Power On
Once all connections are secure, switch on your audio source first, then power on the A77H monitor using the rear panel switch. When powering off, switch off the monitor first, then your audio source.
6. Operating the A77H
6.1 DSP-based Tuning and Room Adaptation
The A77H features onboard DSP for precise tuning and room adaptation. These controls are located on the rear panel and can also be accessed via the ADAM Audio A Control software (available for download from the ADAM Audio website) when connected via Ethernet.
- Desk: Adjusts the low-mid frequency response to compensate for reflections from a desk surface.
- Presence: Controls the mid-range clarity and detail.
- Treble: Adjusts the high-frequency response.
Experiment with these controls to achieve the most neutral and accurate sound reproduction for your specific room acoustics.
6.2 Voicing Options
The "Voicing" switch allows you to select different sound profiles:
- Pure: Provides a highly accurate, neutral frequency response, ideal for critical mixing and mastering.
- UNR (Uniform Natural Response): Offers a more natural and musical response, suitable for general listening and tracking.
- Ext (Extended): May offer additional customization options or specific frequency curves, refer to the A Control software for details.
6.3 Level Adjustment
Use the "Level" knob on the rear panel to set the overall output volume of the monitor. It is recommended to start with a lower level and gradually increase it to a comfortable listening volume.
7. Maintenance
- Cleaning: Disconnect the monitor from power before cleaning. Use a soft, dry, lint-free cloth to wipe the cabinet. Do not use liquid cleaners, aerosols, or abrasive materials.
- Ventilation: Ensure that the ventilation openings on the monitor are not blocked to prevent overheating.
- Storage: If storing the monitor for an extended period, keep it in a dry, dust-free environment, preferably in its original packaging.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound |
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| Distorted sound |
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| Hum or noise |
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If the problem persists, please contact ADAM Audio support.
9. Technical Specifications
| Model Number | A77H |
| Brand | ADAM Audio |
| Speaker Type | Powered Studio Monitor, 3-way, Midfield |
| LF Drivers | 2 x 7-inch Woofers |
| Midrange Driver | 1 x 3.5-inch Midrange Driver |
| HF Driver | Rotatable X-ART Ribbon Tweeter |
| Speaker Maximum Output Power | 500 Watts |
| Connectivity Technology | Ethernet (for DSP control), Wired (Audio Input) |
| Audio Output Mode | Surround (capable) |
| Mounting Type | Tabletop Mount |
| Enclosure Material | Cabinet: Vinyl wrapped MDF and painted MDF front panel |
| Control Method | Touch (on-board DSP), Corded Electric (via Ethernet/software) |
| Item Dimensions (D x W x H) | 13.75"D x 13.75"W x 9.25"H |
| Item Weight | 46.65 Pounds |
| Power Source | Corded Electric |
10. Warranty & Support
10.1 Warranty Information
The ADAM Audio A77H comes with a 2-Year Warranty. Please retain your proof of purchase for warranty claims. For detailed warranty terms and conditions, please refer to the official ADAM Audio website or contact their customer service.
10.2 Customer Support
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact ADAM Audio customer support. You can find contact information and additional resources on the official ADAM Audio website: www.adam-audio.com.







