Line 6 POD HD - DT Series L6 LINK Connectivity Guide

Overview

This guide covers the revolutionary L6 LINK™ technology created by Line 6 to intelligently connect Line 6 POD® HD300, HD400, HD500 or HD Pro devices to Line 6 DT50™ & DT25™ amplifiers. This technology offers a seamless way to integrate amplifiers and effects into a highly customizable rig.

Note: L6 LINK can also be used to connect POD HD devices to Line 6 StageSource™ speakers, or a mix of DT amps and StageSource speakers. For more information, refer to the additional POD HD documentation available at www.line6.com/support/manuals/.

POD HD + DT

Designed by tube amp expert Reinhold Bogner, the Line 6 DT Series amplifiers combine reconfigurable analog components with HD modeling technology for exceptional versatility. These amplifiers can function as standalone 2-channel guitar amplifiers or integrate with Line 6 devices like the POD HD series via the L6 LINK connection.

• DT50™: A 50/25 watt, EL34 tube amp available as a 112 or 212 Combo, or Head.
• DT25™: A 25/10 watt, EL84 tube amp available as a 112 Combo or Head.

The connection involves using an L6 LINK input on the DT amplifier, which receives digital audio and control signals from the POD HD device.

Image Description: A diagram showing a Line 6 DT50 amplifier and a Line 6 POD HD500 connected via L6 LINK cables. The diagram illustrates the flow of Digital Audio and Control signals between the devices.

L6 LINK Technology

L6 LINK technology utilizes a single XLR cable for both audio streaming and bidirectional data transfer between a L6 LINK-equipped POD HD device and DT amplifier(s). The DT amplifier automatically adapts its analog components to precisely match the POD HD amp and preamp model settings. These settings can be customized and saved as part of the POD HD preset for instant recall.

Line 6 Monkey™ and POD HD Edit Software

It is highly recommended to install and use Line 6 Monkey software to ensure your POD HD and DT Series amplifiers have the latest firmware and updates. Line 6 Monkey is available for free download at http://line6.com/software/.

POD HD Edit is a software editor/librarian that allows for easy customization, backup, storage, and sharing of POD HD Presets on Mac® or Windows® computers. It also provides access to the DT amplifier's Voicing parameters, enabling users to view, edit, and recall these settings for their POD HD + DT Series amp setup. POD HD Edit can be accessed via Line 6 Monkey or downloaded directly from http://line6.com/software/.

POD HD300 & POD HD400 Connectivity

The POD HD300 and POD HD400 devices can connect to up to two DT amplifiers using L6 LINK, enabling spacious stereo sound through separate Left and Right POD HD audio channels. Refer to page 2.1 for more information on these devices.

POD HD500 & POD HD Pro Connectivity

The POD HD500 and POD HD Pro devices can connect to up to four DT Series amplifiers. This allows for advanced configurations, including assigning POD HD output channels and dual Amp Models' audio signals independently among the DT amps. Refer to page 3.1 for more information on these devices.

The Dream Rig

The POD HD500 and POD HD Pro feature a Variax® Digital Interface (VDI) input, supporting Line 6 Variax guitar and bass instruments. Combining a James Tyler® Variax® guitar, a POD HD500 or HD Pro, and a DT Series amp creates "The Dream Rig." This setup not only offers amp and FX modeling and L6 LINK connectivity but also allows customization of the Variax guitar's modeling and alternate tuning features, all saved within each POD Preset. This enables a single footswitch to reconfigure FX, analog amp components, guitar model, and tuning.

For more information on James Tyler Variax guitars, visit http://line6.com/guitars#jamestylervariax.

Image Description: A photograph of a Line 6 "Dream Rig" setup, featuring a James Tyler Variax guitar, a Line 6 POD HD500, and a Line 6 DT Series amplifier.

POD HD300 & POD HD400 Quick Start

To set up your POD HD300/HD400 with a DT Series amp:

1. Ensure all devices are powered off.
2. Switch the POD HD OUTPUT MODE to LIVE for optimal audio signal to the DT amp. The switch is located on the back of the POD HD300/HD400.
3. Connect an XLR cable from the POD HD L6 LINK jack to the DT amp's L6 LINK IN jack. The quality of the XLR cable can affect performance.
4. Power on the POD HD and select a favorite Preset. Enter Edit Mode and choose "Preamp" for the AMP:Model option. This loads the Preamp version of the Amp Model, recommended for external tube amps.
5. Power on the DT amp. It should automatically detect the POD HD and set itself to Channel A.
6. Play your guitar to hear the POD HD tone through the DT amplifier.
7. Adjust the Amp Tone knobs on the POD HD or Channel A of the DT amp; these controls work in sync.

Connecting Two DT Series Amplifiers

To connect a second DT50 or DT25 amp, use another XLR cable from the first amp's L6 LINK THRU jack to the second amp's L6 LINK IN jack. This enables stereo operation, with the first DT amp receiving the POD HD left channel audio and the second receiving the right channel.

Diagram Description: A diagram illustrating the connection of two DT Series amplifiers to a POD HD device using L6 LINK cables. The diagram shows the signal flow for stereo operation.

When using POD HD with two connected amps, the second amp (DT50/DT25 #2) typically follows the settings of the first amp (DT50/DT25 #1) for most adjustments.

Note: Multiple DT Series amps can be connected using L6 LINK without a POD HD, synchronizing controls across all DT amps. Refer to the DT Series amplifier documentation for details.

DT Series Amp - Channel A & B Operation

The DT Series amps automatically switch between Channels A and B based on the POD HD Amp Model's On/Off state. When the POD HD Amp Model is "On," the DT amp switches to Channel A, and its controls operate in tandem with the POD HD. When the POD HD Amp Model is "Off" (or set to "None"), the DT amp switches to Channel B, operating independently with its own preamp and tonestack modeling.

Channel A:

• When the POD HD Amp/Preamp Model is "On," the DT amp's Channel A reconfigures its analog components to match the POD HD Amp/Preamp Model, including Class A or AB operation, Biasing method, and Pentode/Triode power tube configuration.
• Amp tone knobs and Presence parameters on both the POD HD and DT amp's Channel A operate in tandem, with changes on either device affecting the current POD HD Preset.
• The DT amp's VOICING, CLASS & PENTODE/TRIODE switches can be manually toggled and affect Channel A. These parameter changes are saved within the POD HD Preset. See “DT Series Amp Parameters" on page 4.1.
• When in Channel A, the DT amp's Reverb is disabled. The DT amp's Channel A REVERB knob controls the POD HD REVERB Mix amount, allowing adjustment from either device.
• Master Volume controls are not synced. The POD HD Master Volume does not affect the DT amp's signal; use the DT amp's Master Volume knob for overall volume control.

Channel B:

• When the POD HD Amp/Preamp Model is "Off," the DT Series amp switches to Channel B. Amp tone and settings are determined by the DT amp's Channel B knobs, while FX are derived from the POD HD. In this mode, the POD HD acts as a multi-FX device, with the DT amp providing the preamp and power amp stages.
• The DT amp Channel B knobs, along with VOICING, CLASS & PENTODE/TRIODE switches, are active only on the DT amp and do not affect POD HD settings or Presets.
• Since POD HD Amp/Preamp Model audio or control settings are not sent to the DT amp's Channel B, adjustments on the POD HD have no effect on the DT amp in this mode.
• All FX1, FX2, FX3, and Reverb models from the POD HD are applied to the L6 LINK audio signal fed to the DT amp's Channel B.
• Note: Unlike Channel A behavior, both POD HD and DT amp Channel B Reverb FX are active and independently adjustable. It is recommended to turn the DT amp's Channel B Reverb knob "off" and use only the Reverb from the POD HD, as its settings are saved within the POD HD Preset.
• When multiple DT amps are connected and switch to Channel B, DT amp #2 syncs to all Channel B knob and VOICING, CLASS & PENTODE/TRIODE settings of DT amp #1.
• With two DT amps connected, all Channel B knob and Voicing switch adjustments work in tandem between both amps via the L6 LINK connection. Master Volume knobs remain independent on each amp.

The DT amplifier's CH A/B switch on the front panel can also be used to toggle between Channels A and B. The POD HD AMP switch light indicates when Channel A is active. If two DT Series amps are connected, both amps' Channels toggle simultaneously.

POD HD Rear Panel Connections & Options

The back panel of the POD HD300/400 offers several connections and switchable options that affect L6 LINK connectivity:

1. CD/MP3 Input: Audio sources connected here feed the analog outputs (Unbalanced, Balanced, and Phones) and are affected by the POD HD Master Volume knob. This audio is not sent to the L6 LINK output.
2. Balanced, Unbalanced & Phones Outputs: These analog outputs remain available and can be used simultaneously with an L6 LINK connection. Their level is controlled by the POD HD Master Volume knob, not the L6 LINK - DT amp level.
3. Output Mode Options: The Output Mode switch affects the signal fed to all POD HD analog outputs. When the DT amp is in Channel A operation, the signal fed from POD HD to the DT amp is also affected by this switch.

Note: The LIVE setting is recommended for L6 LINK connections to DT Series amplifiers, but experimentation with STUDIO settings (which include different Cab/Mic/EQ for direct recording) is encouraged.

Diagram Description: A diagram of the POD HD300/400 rear panel, highlighting the CD/MP3 Input, Balanced/Unbalanced/Phones Outputs, and Output Mode switch.

FX Loop (POD HD400 Only): The POD HD400's FX Loop can be utilized with any Preset when using the L6 LINK connection.

USB Audio: All USB audio is muted when the POD HD300/400 L6 LINK connection is active. However, USB MIDI functionality remains active, allowing use of the POD HD Edit software or access to the device's USB MIDI In/Out ports.

POD HD500 & POD HD Pro Quick Start

To set up your POD HD500/HD Pro with a DT Amp:

• Select a favorite Preset on the POD HD.
• For initial setup, use only POD Amp Model A in your tone, and turn off Amp Model B if active.
• Select the Amp A Block and choose a Preamp Model, recommended for feeding an external tube amp.
• Navigate to the SETUP - L6 LINK:AUDIO screen and set the AMP 1 option to "LEFT/RIGHT" to capture both channels of the POD HD signal and feed it to the first connected DT Series amp.
• Navigate to the Setup - L6 LINK:CONTROL screen and set the AMP 1 option to "AMP A (CH1)" to sync the first DT amp with POD HD Amp Model A (or MIDI Channel 1).
• Connect an XLR cable from the POD HD L6 LINK jack to the DT amp's L6 LINK IN jack. An AES/EBU cable is recommended for best results due to the digital connection.
• Power on the DT amp. It will automatically detect the POD HD and configure its tube power amp options to match the Preset's "Amp A" Preamp Model.
• Adjust the DT amp's Master Volume knob and play. The tone will be delivered through the DT amp with its analog tube characteristics.
• Adjust the Amp Tone knobs on the POD HD or Channel A of the DT amp; these controls are synced and affect the POD HD Amp Model A settings.

Connecting Two or More DT Series Amplifiers

To connect additional DT Series amps, use an XLR cable from the first amp's L6 LINK THRU jack to the next amp's L6 LINK IN jack. Up to four DT Series amps can be connected in series.

Diagram Description: A diagram showing the connection of up to four DT Series amplifiers to a POD HD500 or HD Pro via L6 LINK cables.

When multiple DT amps are connected and synced via L6 LINK, POD HD Amp Models and all DT Series amps can be synchronized.

Note: Multiple DT Series amps can be connected using L6 LINK without a POD HD, synchronizing controls across all DT amps. Refer to the DT Series amplifier documentation for details.

Configuring the Audio Signal Fed to each DT Series Amp

The POD HD500/HD Pro SETUP - L6 LINK screens allow independent configuration of L6 LINK audio signals and control/sync behaviors for up to 4 DT Series amps.

The SETUP - L6 LINK:AUDIO screen allows selection of POD HD audio routings, with settings saved per POD HD Preset.

Image Description: A screenshot of the POD HD SETUP - L6 LINK:AUDIO screen, showing options for routing audio to DT amps.

• Use the Multi-function Knobs 1-4 to select the POD HD audio signal for each DT Series amp. Set the AMP 1 parameter for the first amp, and subsequent AMP parameters for consecutively connected amps.
• L, R or Left/Right: Sends the Left channel only, Right channel only, or both channels (summed to mono), respectively. This signal is derived from the end of the POD HD signal path and includes all active FX and Amp Models. The POD HD Mixer Block options can be used to pan signals to Left and Right outputs.
• Amp Model A, Amp Model B or Amp A/B: Sends the output directly from the respective Amp Model(s), including FX Models positioned before the selected Amp Model, but not those after it.

Note: If a Preset has only one Amp Block, "Amp B" does not exist. In this case, "Amp Model B" options in the Setup screen will output the signal from the end of Path B to the respective DT Series amp.

The System MIDI Channel

L6 LINK utilizes MIDI communication for control data (knob positions, power amp Voicing settings, etc.) between POD HD500/HD Pro and DT Series amps. The POD HD SETUP - MIDI/TEMPO screen allows setting the "System" MIDI Channel.

Image Description: A screenshot of the POD HD SETUP - MIDI/TEMPO screen, showing the "System" MIDI Channel selector.

• POD HD Amp Model A control data is sent to the System MIDI Channel (default: MIDI Ch. 1).
• POD HD Amp Model B control data is sent to the System MIDI Channel + 1 (default: MIDI Ch. 2).
• Other MIDI Channels can be used for DT amp control data between DT amps.

Changing the System MIDI Channel affects the L6 LINK:CONTROL screen settings. It is recommended to set the System MIDI Channel first, then configure L6 LINK:CONTROL options.

Configuring the Control Options for Each DT Series Amp

The SETUP - L6 LINK:CONTROL options determine the "sync" behavior between POD HD500/HD Pro and each connected DT Series amp. Setting Control parameters to the same MIDI Channel allows for synchronized control, such as a mono backline setup.

Image Description: A screenshot of the POD HD500/HD Pro SETUP - L6 LINK:CONTROL screen, showing configuration options for multiple DT amps.

• AMP A (CH 1): Sets Channel A of the DT amp to sync with POD HD Amp Model A. The DT amp auto-configures its tube power amp Topology settings (Class AB/A, Voicing Mode, Pentode/Triode) to match the POD HD500 Preset's Amp Model A. DT amp Channel A and POD HD Amp Model A knob values (Drive, Bass, Mid, Treble, Presence & Volume) are synced. The POD HD System MIDI Channel is used for this communication (e.g., "(CH1)" refers to System MIDI Channel 1).
• AMP B (CH 2): Sets Channel A of the DT amp to sync with POD HD Amp Model B. The DT amp auto-configures its tube power amp settings to match the POD HD Preset's Amp Model B. DT amp Channel A and POD HD Amp Model B knob values are synced. The POD HD System MIDI Channel + 1 is used for this communication (e.g., "(CH2)" refers to System MIDI Channel 1 plus 1, which is Channel 2).
• MIDI CH XX: Select any available MIDI Channel (other than those assigned to Amp Model A & B) to set the DT amp's L6 LINK - MIDI Channel. Setting multiple DT amplifiers to the same MIDI Channel syncs their front panel controls.

Note: This option also allows control of DT amplifiers by a third-party MIDI controller by setting the controller to the same MIDI Channel and connecting it directly to the DT amp's 5-pin MIDI IN.

Additional L6 LINK Control Behaviors

When SETUP - L6 LINK:CONTROL is set to AMP A or AMP B, the following "sync" behaviors apply between the POD HD Amp Model and Channel A of the respective DT Series amplifier:

• The DT amp front panel VOICING, CLASS & PENTODE/TRIODE switches can be manually toggled and affect Channel A. These values are saved with the current POD HD Preset. See “DT Series Amp Parameters" on page 4.1.
• The DT amp REVERB knob for the active Channel independently controls the DT amp's built-in Reverb, not any Reverb model active in the POD HD Preset. It is recommended to use either the DT amp's Reverb or add a Reverb model to the POD HD Tone.
• MASTER VOLUME controls are not synced between POD HD or any connected DT amps. The POD HD Master Volume has no effect on the signal fed to the DT amp. Use the DT amp Master Volume knob on each amp to control its volume.

DT Series Amplifier - Channel A & B Operation

When SETUP - L6 LINK:CONTROL options AMP 1 through AMP 4 are set to "AMP A" or "AMP B," the respective DT amp(s) automatically switch between Channels A & B based on the POD HD Amp Model A or B's On/Off state.

• When the POD HD Amp Model is "On," all respective DT amps switch to Channel A, and their controls operate in tandem.
• When the POD HD Amp Model is "Off" (or set to "None"), all respective DT amps switch to Channel B. In Channel B, the DT amp operates independently, using its HD modeling for the preamp and tonestack.
• When a DT amp switches to Channel B and multiple DT amps are connected, all DT amps sync to the Channel B knob and VOICING, CLASS & PENTODE/TRIODE settings of DT amp #1.
• With two DT amps connected, all Channel B knob & Voicing switch adjustments work in tandem between all DT amps. Master Volume knobs remain independent on each amp.

Toggling the front panel DT amp Channel A/B switch (or using the Channel A/B footswitch) will toggle the corresponding POD HD Amp Model A or B On/Off in response.

Diagram Description: A diagram showing the controls for Channel A and Channel B on a DT50 amplifier, including the Channel A/B toggle switch.

Multiple DT Amp Setup Examples

L6 LINK possibilities with POD HD and multiple DT amps allow for a variety of rig configurations.

Note: The following examples use POD HD500 and DT50 amplifiers, but POD HD Pro and DT25 amplifiers can be substituted.

• Stereo Setup: Employ stereo Amp and/or FX Model configurations within POD HD and set its Left & Right Audio outputs to each for a "stereo" DT amp rig.

Diagram Description: A diagram illustrating a stereo setup with two DT amps connected to a POD HD500 via L6 LINK, showing the flow of digital audio and control signals.

• Wet/Dry/Wet Setup: Expand the stereo setup by adding a third DT amp, set to receive a "Dry" audio signal.

Diagram Description: A diagram illustrating a Wet/Dry/Wet setup with three DT amps connected to a POD HD500 via L6 LINK, including a James Tyler Variax guitar.

• Double Stereo Setup: Use four DT amps to create a massive double stereo rig.

Diagram Description: A diagram illustrating a double stereo setup with four DT amps connected to a POD HD500 via L6 LINK, including a James Tyler Variax guitar.

POD HD500 & POD HD Pro Connections & Options

The back panels of the POD HD500 and POD HD Pro offer various connections and switchable options that influence L6 LINK connectivity.

Diagram Description: Diagrams of the POD HD500 and POD HD Pro rear panels, showing various input and output connections including L6 LINK, USB, MIDI, FX Loop, and Variax inputs.

Input Sources:

• The GUITAR, MIC, VARIAX (POD HD500 only), and LINE (HD Pro only) inputs are configured via the POD HD device's SETUP:INPUTS screen. Signals from these inputs feed the L6 LINK output following the same behaviors as the POD HD device's main outputs.
• The POD HD Pro SPDIF and AES/EBU digital inputs can also be utilized but cannot be selected simultaneously with other input sources.

Outputs:

• The BALANCED, UNBALANCED & PHONES analog outputs remain available and can be used simultaneously with an L6 LINK connection. Their level is controlled by the POD HD device's Master Volume knob, while the L6 LINK - DT amp level is not.
• The DRY OUT (HD Pro only) outputs an unprocessed signal when L6 LINK is active, useful for sending a "naked" signal to a recording system.

Note: For an analog direct output from a POD HD + DT amp rig to a Front-Of-House or recording system, use the DIRECT OUT on the back of the DT amp (see page 4.6).

The SPDIF and AES/EBU (HD Pro only) digital outputs carry a POD HD-processed signal, determined by the SETUP:DIGITAL OUTPUT screen. The AES/EBU | L6 LINK Output is a dual-purpose connection for either AES/EBU digital audio or L6 LINK output. The HD Pro SETUP:DIGITAL OUTPUT screen settings do not affect the audio signal during an L6 LINK - DT amp connection.

USB: USB functionality remains fully functional during an L6 LINK connection, allowing simultaneous use of the POD HD Pro Edit software.

FX LOOP: External devices connected within the FX Loop are incorporated into the audio output fed to L6 LINK.

FBV (POD HD Pro only): A Line 6 FBV™ Series Foot Controller can be connected for remote control of POD HD Pro functions, with or without an active L6 LINK connection. The FBV can also be used as a MIDI controller.

MIDI IN/OUT: POD HD500 & HD Pro can send and receive MIDI control messages via MIDI DIN connections, even when L6 LINK is active. Refer to the POD HD Advanced Guides for details.

Note: While using L6 LINK with DT Series amplifiers, the MIDI connection is not necessary for control communication, as it is automatically routed via L6 LINK. However, DT amplifier functions can still be accessed and configured via MIDI. Refer to the "Line 6 DT Series Amplifiers - MIDI Implementation Guide" available at http://line6.com/support/manuals/.

DT Series Amplifiers

This chapter covers parameters and features of Line 6 DT Series amplifiers relevant to L6 LINK connection with POD® HD300/400/500 or HD Pro devices. It also includes tips for controlling DT Series amps via MIDI.

DT Series Amp Parameters

Descriptions of parameters specific to the DT50 and DT25 amplifiers:

When using L6 LINK, the amps' analog components adapt to match the classic amplifiers upon which each POD HD Amp or Preamp Model is based. These settings can also be manually adjusted for customized amp tone.

Diagram Description: Diagrams illustrating the Tube Power Amp Parameters for the DT50 and DT25 amplifiers, highlighting controls like Voicing Switch, Class AB - A Switch, Pentode/Triode Switch, Master Volume, and Low Volume Mode Switch.

Note: DT amp parameters are not accessible via POD HD screens; use the amp's front panel controls. These settings are sent to POD HD via L6 LINK and saved with the POD HD Preset.

1. Voicing Switch: Offers 4 Negative Feedback Loop Topology Modes to emulate different classic tube amplifiers. Each Voicing Mode affects the amp's responsiveness and distortion characteristics, with its own gain amount. Changing the Voicing switch while using a POD HD Preamp Model will alter tonality and volume.
   • Position I: High Negative Feedback for a "tight" clean sound.
   • Position II: Medium Negative Feedback for a more "loose" feel.
   • Position III: Zero Negative Feedback for slightly more distortion and an "open" sound.
   • Position IV: "Modern" Negative Feedback providing zero feedback on low frequencies but "loose" feedback on mids and upper frequencies.
2. Class AB - A Switch: Toggles the DT amplifier's Bias type, wattage, and operating class.
   • DT50: Up - Fixed Bias, 50 watts, Class AB. Down - Cathode biased, 25 watts, Class A.
   • DT25: Up - Fixed Bias, 25 watts, Class AB. Down - Cathode biased, 10 watts, Class A.
3. Pentode/Triode Switch: Toggles the state of the DT amplifier's power tubes.
   • Up (PENTODE): Higher power mode with a "tighter" and "punchier" response, brighter high end, preferable for high volume playing.
   • Down (TRIODE): Lower power mode with a "softer" feel and less brilliant high end response, resulting in an overall volume decrease compared to Pentode.

DT Amp Parameter Usage Tips

The analog circuitry of the DT Series amplifiers allows for extensive reconfiguration. Experiment with different settings, and consider these tips for understanding amplifier options and combining them with POD HD Amp Models:

POD HD Preamp Models vs. Full Amp Models:

• For the most authentic sonic experience with POD HD + DT, use a POD HD Preamp Model and let the DT amp adaptively select the intended power amp options.
• POD HD Preamp Models exhibit significant volume variations. Adjusting the Preamp Model's Drive and Volume knobs and saving them in Presets is recommended, especially for live situations.

Class AB vs. Class A:

• Class AB amplification alternates power between tubes, resulting in inherent background distortion when the signal is loud enough to cause tubes to enter "cutoff."
• Class AB has approximately twice the headroom of Class A. If insufficient "dirt" is achieved with Class AB, try Class A, which clips tubes harder at a lower overall volume.

About Preset Loading and DT50 Amp Settings:

Due to higher voltage components in DT50 amplifiers, amplifier changes may not be instantaneous. For seamless Preset switching during live performance, use the same amp Voicing switch settings for both Presets. For more significant reconfigurations, follow these tips:

• Keeping Class A consistent between consecutively-switched Presets helps avoid disruption.
• Models like Super O, Tweed B-man, Class A-15, and Brit Plexi J-45 have a unique analog B+ voltage that differs from other POD HD Amp Models, potentially causing disruption. Limit switching between these models and others.
• Avoid making setting changes within 5 seconds of each other, especially if including Class and B+ voltage changes. The DT50 circuitry requires up to 5 seconds to stabilize after a transition.

Note: DT25 amplifiers use lower voltage components, making setting changes less affected. However, these practices can still be applied if Preset changes are not seamless.

Additional DT Series Amplifier Features

The following features are available on the DT amplifier in Channel A or B, offering additional sonic options when used with POD HD Tones. Refer to DT50 or DT25 documentation for more details.

Diagram Description: Diagrams of the DT50 and DT25 rear panels, highlighting features such as Footswitch, MIDI Input/Out, Effect Loop, and Direct Out.

1. Footswitch: Connect an optional footswitch pedal to toggle the DT amplifier's Channel A/B switch. The DT amplifier's Channel state is saved within the current POD HD Preset.
2. MIDI Input/Out: The DT amplifier's MIDI INPUT and MIDI OUT DIN connections, along with MIDI Send & Receive features, remain functional when the POD HD - L6 LINK connection is active.
3. DT Amplifier Effect Loop: The SEND and RETURN jacks are for the analog, series EFFECT LOOP. POD HD Preset Tones fed through effects connected here will pass through the DT amp's power amp stage.
4. Direct Out: The DT amplifier's DIRECT OUT functions as an analog output with L6 LINK in use. This XLR output is recommended for feeding a "fully baked" POD HD + DT amp tone to an external recorder or mixing console. The audio signal fed to the DT amp via L6 LINK is mono, and this Direct Out is also mono. The Direct Out functionality differs based on the DT amp's LOW VOLUME MODE and STANDBY switch settings:
   • Low Volume Mode Off, Amp in Standby = Direct Out is disabled.
   • Low Volume Mode On, Amp in Standby = Direct Out signal is the "Full" (preamp + power amp) Amp Model without analog amp, suitable for "silent recording."
   • Low Volume Mode Off, Amp On (not in Standby) = Direct Out signal is the "Preamp" Amp Model with the analog amp.
   • Low Volume Mode On, Amp On (not in Standby) = Direct Out signal is the "Full" Amp Model and the analog amp.

Note: MIDI DIN connection is not necessary for control communication when POD HD is connected via L6 LINK, as it's routed automatically. However, DT amplifier functions can be accessed and configured via MIDI. Refer to the "Line 6 DT Series Amplifiers - MIDI Implementation Guide" available at http://line6.com/support/manuals/.

MIDI Implementation

When using L6 LINK with DT Series amplifiers, MIDI connection is not required for control communication, as it is automatically routed via L6 LINK. However, DT amplifier functions can be accessed and configured via MIDI. Refer to the "Line 6 DT Series Amplifiers - MIDI Implementation Guide," available at http://line6.com/support/manuals/.

Image Description: A photograph of a Line 6 DT Series amplifier and a Line 6 POD HD500.