1. Introduction
The Schiit Magni Heretic is a high-performance headphone amplifier and preamplifier designed to deliver exceptional audio quality. It features a unique op-amp topology, high-quality components, and robust protection systems to ensure compatibility with a wide range of headphones, from sensitive In-Ear Monitors (IEMs) to power-hungry planar magnetics.
This manual provides essential information for setting up, operating, and maintaining your Magni Heretic. Please read it thoroughly before use to ensure optimal performance and longevity of your device.
2. Important Safety Information
- Power Supply: This product is designed for 115VAC operation only and is supplied with a USA plug. It will not function in 220-240V countries. Using an incorrect power supply may damage the unit and void the warranty.
- Ventilation: Ensure adequate ventilation around the unit. Do not block ventilation openings.
- Moisture: Do not expose the unit to rain or moisture.
- Servicing: There are no user-serviceable parts inside. Refer all servicing to qualified service personnel.
- Placement: Place the unit on a stable, level surface away from heat sources.
3. Package Contents
Verify that all items are present in the package:
- Schiit Magni Heretic Headphone Amplifier and Preamp
- AC Power Adapter (115VAC, USA Plug)
- User Manual (this document)
4. Product Overview
Front Panel
Image: Front view of the Schiit Magni Heretic. This image displays the front panel of the Magni Heretic, featuring the 6.35mm headphone output jack on the left, a central volume control knob, and a three-position gain switch on the right. The "MAGNI" logo is visible below the volume knob.
- Headphone Output: 6.35mm (1/4 inch) jack for connecting headphones.
- Volume Knob: Controls the output level for both headphones and preamp outputs.
- Gain Switch: Selects between three gain levels: Low (-10dB), Medium (0dB), and High (+15dB).
Rear Panel
Image: Rear view of the Schiit Magni Heretic. This image shows the rear panel of the Magni Heretic, featuring stereo RCA input jacks (labeled "IN") on the left, stereo RCA output jacks (labeled "OUT") in the middle, and the AC power input jack on the right. A power switch is also visible next to the AC input.
- RCA Inputs (IN): Stereo RCA jacks for connecting an audio source (e.g., DAC, CD player).
- RCA Outputs (OUT): Stereo RCA jacks for connecting to powered monitors or a power amplifier (preamp function).
- AC IN: Power input for the supplied AC adapter.
- Power Switch: Toggles the unit on/off.
5. Setup Instructions
Follow these steps to set up your Magni Heretic:
- Placement: Position the Magni Heretic on a stable, flat surface. Ensure there is adequate space for ventilation.
- Connect Audio Source: Connect your audio source (e.g., DAC, streamer, phono preamp) to the RCA Inputs (IN) on the rear panel using high-quality RCA cables.
- Connect Headphones: Plug your headphones into the Headphone Output jack on the front panel.
- (Optional) Connect to Powered Monitors/Power Amp: If using the preamp function, connect the RCA Outputs (OUT) on the rear panel to your powered speakers or a power amplifier.
- Connect Power: Connect the supplied AC power adapter to the AC IN jack on the rear panel, then plug the adapter into a 115VAC wall outlet.
- Power On: Flip the Power Switch on the rear panel to the "ON" position.
Note: Always ensure the volume knob is set to its minimum position before powering on or connecting/disconnecting headphones to prevent sudden loud sounds.
6. Operating Instructions
Volume Control
The large knob on the front panel controls the output volume for both the headphone output and the RCA preamp outputs. Rotate clockwise to increase volume and counter-clockwise to decrease it.
Gain Selection
The Magni Heretic features a three-position gain switch on the front panel to optimize performance for different headphones:
- Low Gain (-10dB): Ideal for highly sensitive headphones or In-Ear Monitors (IEMs) to prevent hiss and provide finer volume control.
- Medium Gain (0dB): Suitable for most standard headphones.
- High Gain (+15dB): Recommended for power-hungry headphones, such as high-impedance dynamic headphones or planar magnetics, to ensure sufficient power and dynamics.
Recommendation: Start with Low Gain and increase if necessary. If you find yourself turning the volume knob past 12 o'clock for comfortable listening, consider switching to a higher gain setting.
Preamp Functionality
The RCA Outputs on the rear panel allow the Magni Heretic to function as a preamplifier. This means you can connect it to powered speakers or a separate power amplifier to control their volume. The volume knob and gain settings will affect both the headphone output and the preamp outputs simultaneously.
7. Maintenance
- Cleaning: Disconnect the unit from power before cleaning. Use a soft, dry cloth to wipe the chassis. Do not use liquid cleaners or solvents.
- Ventilation: Ensure the ventilation holes on the top and sides of the unit remain clear of dust and obstructions.
- Storage: If storing the unit for an extended period, disconnect it from power and store it in a cool, dry place.
Note: The Magni Heretic contains no user-serviceable parts. Any attempt to open or modify the unit will void the warranty.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from headphones/speakers. |
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| Distorted sound. |
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| Hum or buzz noise. |
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| Unit gets warm. | Normal operation. | Ensure adequate ventilation. If it becomes excessively hot, disconnect power and contact support. |
If the problem persists after trying these solutions, please contact Schiit Audio customer support.
9. Specifications
| Feature | Detail |
|---|---|
| Model | Magni Heretic |
| Output Power | Up to 2400mW (2.4W) |
| SINAD | 120dB |
| Gain Settings | -10dB (Low), 0dB (Medium), +15dB (High) |
| Inputs | Stereo RCA |
| Outputs | 6.35mm Headphone Jack, Stereo RCA Preamp Out |
| Power Input | 115VAC (USA Plug) |
| Chassis Material | Steel |
| Color | Black |
| Dimensions (L x W x H) | 5 x 3.5 x 1.25 inches |
| Weight | 3 pounds |
Specifications are subject to change without notice.
10. Warranty and Support
Warranty Information
Schiit Audio products typically come with a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Schiit Audio website. Keep your proof of purchase for warranty claims.
Customer Support
If you encounter any issues not covered in this manual or require further assistance, please contact Schiit Audio customer support. You can usually find contact information on their official website:
Visit Schiit Audio Support Page
Please have your product model and purchase date ready when contacting support.
