Detail 01
SLO II module: two channels with independent gain, volume, and three-band EQ
Each SLO II channel can be adjusted independently rather than sharing those controls.
Product detailSKU #1500000457171
SynergySYN-20IR Tube Amp Head and Soldano SLO II Module Bundle
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1/8
Independent shopping perspective
The Korena take
This 20W EL84 bundle gives the SYN-20IR’s clean channel a Soldano SLO II module with two independently adjustable channels. Each module channel has its own gain, volume, and three-band EQ, plus overdrive and crunch switches for moving through its available gain settings. The head expands the setup with selectable power-amp modes, four channel-programmable IRs, MIDI preset capability, and direct, headphone, and speaker connections. It suits a modular guitar rig centered on the SLO II’s high-gain voice without giving up clean-channel access.
Strong match
Who this is for
- Players moving between the head’s clean channel and two SLO II channels with independent front-panel controls.
- High-gain guitar setups that use the SLO II module’s overdrive and crunch switches.
- Recording or direct-routing rigs that need XLR, line, headphone, and IR cabinet-simulation outputs.
Consider the trade-offs
When to look elsewhere
- Players who need more than four onboard IR locations.
- Players looking to use preamp modules outside the official Synergy module range.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Overdrive and crunch switches
The SLO II module includes separate switches for its overdrive and crunch settings.
Detail 03
Four onboard IRs, programmable per channel
Cabinet-simulation selections can be assigned separately across the three channels.
Detail 04
Up to 128 MIDI-programmable presets
The head can store up to 128 settings for MIDI use.
Detail 05
14 x 8.5 x 7.5 inches; 16.4 lb.
A compact head format for a tube-powered modular setup.
Final check
Know before you order
- 01IR management uses the included 6-foot USB cable and Synergy Editor Software.
- 02Future module changes require official Synergy modules, which are sold separately.
- 03The head provides the listed 16-ohm, dual 8-ohm parallel, and dual 4-ohm parallel speaker outputs.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How many channels are available?
There are three: the amp head’s clean channel plus two channels from the Soldano SLO II module.
02Are SLO II channel controls independent?
Yes. Each SLO II channel has independent gain, volume, and three-band EQ.
03Can I use headphones?
Yes. It has a headphone output with its own volume control.
04Can I use MIDI presets?
Yes. The head supports up to 128 programmable MIDI presets.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsConnections & power
- Power output
- 20W EL84 tube-driven power amp
23 detailsOther
- Category Source
- detail
- Master Volume
- Global volume control
- MIDI
- Up to 128 programmable presets
- USB
- Included 6' USB cable for IR management
- IR Slots
- Four onboard IRs (programmable per channel)
- Korena Special
- false
- Channels
- 3 (Clean + two preamp module channels)
- Depth
- 8.5"
- Weight
- 16.4 lb.
- Latency
- Under 1 ms
- IR Loader
- Free Synergy Editor Software (USB connection)
- Reactance
- Dynamic presence control
- Preamp module compatibility
- Official Synergy modules (sold separately)
- Tier
- new
- Voltage
- Universal voltage selector for global use
- FX Loop
- Ultratransparent series FX loop
- Speaker Outputs
- 1x16 ohm, 2x8 ohm (parallel), 2x4 ohm (parallel)
- Power Amp Structure
- Three selectable modes (A, B, C)
- Outputs
- XLR balanced, 1/4" line output, headphone out with volume control
- Tubes
- 2 x EL84, 2 x 12AX7 (additional 12AX7 tubes in modules)
- Height
- 7.5"
- Source Id
- site51500000457171
- Width
- 14"
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