Detail 01
Four onboard IRs, programmable per channel
Each channel can have a programmed onboard IR selection.
Product detailSKU #1500000457158
SynergySYN-20IR Tube Amp Head and Diezel VH4 Module Bundle
metalthrashdjentprogressive metal
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Independent shopping perspective
The Korena take
This 20W tube amp head bundle combines the SYN-20IR’s clean channel with a two-channel Diezel VH4 module, giving the system three channels in total. The VH4 module provides three-band EQ and a gain boost, covering classic-rock crunch through modern metal sounds. Four onboard IRs can be programmed for individual channels, and the head adds three selectable power-amp modes, a series effects loop, and MIDI programming for up to 128 presets. It is a compact modular route to a VH4-based preamp setup.
Strong match
Who this is for
- Rehearsal, recording, or live use that calls for the built-in clean channel plus two VH4 module channels.
- Moving between programmed channel and IR settings through up to 128 MIDI presets.
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
XLR balanced, 1/4-inch line, and headphone outputs
Provides balanced, line-level, and headphone output options.
Detail 03
Under 1 ms latency
The listed latency is below one millisecond.
Detail 04
Dimensions and weight: 14 × 8.5 × 7.5 inches; 16.4 lb
These are the listed head dimensions and weight.
Final check
Know before you order
- 01IR management uses the included 6-foot USB cable and Synergy Editor Software.
- 02Additional official Synergy preamp modules are sold separately.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How many channels are available in this bundle?
Three: the SYN-20IR Clean channel and the VH4 module’s two channels.
02Does the VH4 module include a gain boost?
Yes. The module has a gain boost and three-band EQ.
03Can I connect it to a line-level or balanced output?
Yes. It has 1/4-inch line and XLR balanced outputs.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsPickups & controls
- Preamp Module Compatibility
- Official Synergy modules (sold separately)
7 detailsConnections & power
- Outputs
- XLR balanced, 1/4 inch line output, headphone out with volume control
- USB
- Included 6' USB cable for IR management
- Voltage
- Universal voltage selector for global use
- MIDI
- Up to 128 programmable presets
- Speaker Outputs
- 1x16 ohm, 2x8 ohm (parallel), 2x4 ohm (parallel)
- Power Output
- 20W EL84 tube-driven power amp
- Power Amp Structure
- 3 selectable modes (A, B, C)
4 detailsSize & weight
- Weight
- 16.4
- Depth
- 8.5 inch
- Width
- 14 inch
- Height
- 7.5 inch
8 detailsOther
- Reactance
- Dynamic presence control
- Latency
- Under 1 ms
- Master Volume
- Global volume control
- Channels
- 3 (Clean + 2 preamp module channels)
- Ir Loader
- Free Synergy Editor Software (USB connection)
- Tubes
- 2 x EL84, 2 x 12AX7 (additional 12AX7 tubes in modules)
- Ir Slots
- 4 onboard IRs (programmable per channel)
- Fx Loop
- Ultra-transparent series FX loop
