5-Watt Guitar Tube AMP (GTA-5)
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The IVU Creator Oxblood GTA-5 is a compact, hand-wired 5-watt all-tube guitar combo based on a classic 5F1-style circuit with an added Tone control. It combines a 12AX7 preamp tube, 6V6 power tube, 6Z4 rectifier tube and 8-inch Celestion Eight 15 speaker for practice, recording and pedal-based guitar rigs.
What is the Oxblood GTA-5 tube guitar amp?
The GTA-5 is a 5-watt tube guitar amplifier with one instrument input, Volume and Tone controls, and a built-in 8-inch speaker. Its compact combo format keeps the signal path and control workflow direct while retaining an all-tube, hand-wired design.
| Specification | Details |
|---|---|
| Product | IVU Creator Oxblood GTA-5 |
| Amplifier format | All-tube, hand-wired guitar combo |
| Circuit concept | Classic 5F1-style design with Tone-control modification |
| Output power | 5 watts |
| Power requirement | 60 watts |
| Input impedance | 1 MΩ |
| Speaker | One 8-inch Celestion Eight 15 |
| Tubes | One 6Z4 rectifier, one 6V6 power tube and one 12AX7 preamp tube |
| Controls | Volume and Tone |
| Panel connections and indicators | Instrument input, power jewel and power switch |
| Listed AC setting | 115V / 230V; verify the product setting and local mains before use |
| Dimensions | 34.3 cm W × 19 cm D × 33 cm H (13.5 × 7.5 × 13 in) |
| Weight | 8.5 kg (18 lb) |
Specifications are based on IVU Creator product information and may change without notice.
How does the GTA-5 produce its tube-amp response?
The GTA-5 uses a 12AX7 preamp stage, a single 6V6 power tube and a 6Z4 tube rectifier in a hand-wired circuit. IVU Creator describes the circuit as a classic 5F1 design with a Tone-control modification, custom transformers and Orange Drop tone capacitors.
As the Volume control is increased, the 5-watt power section is designed to move into warm, compressed overdrive. The Tone control adjusts the treble response, while the Celestion Eight 15 handles the amplifier's output through its built-in 8-inch speaker.
Is a 5-watt tube amp suitable for practice and recording?
Yes—the GTA-5 is designed for practice and recording, but a 5-watt tube amplifier can still produce substantial room volume. Start with the Volume control low and choose the setup according to the room, microphone plan and clean-headroom requirement.
| Use case | How the GTA-5 fits | What to check |
|---|---|---|
| Home or practice room | Compact combo with a simple Volume-and-Tone workflow | Room volume, speaker direction and hearing comfort |
| Recording | 5-watt tube output and an 8-inch speaker for microphone-based amp recording | Microphone placement and the room's noise level; no line output is listed |
| Pedal-based rig | IVU Creator describes the amplifier as pedal-friendly | Use compatible instrument-level pedals and begin with pedal output levels low |
| Rehearsal or small performance | Can be miked when more coverage is needed | Required clean headroom, drummer volume, room size and PA support |
How should I set up the GTA-5 safely?
Before powering the GTA-5, confirm that its listed 115V/230V setting and product label match the local AC supply. Tube amplifiers contain high voltage and become hot during use, so ventilation, correct power setup and qualified servicing are essential.
- Place the amplifier on a stable, dry surface with open space around the cabinet for ventilation.
- Confirm the AC voltage setting and power requirements before connecting the mains cable; do not assume automatic voltage switching.
- Check that the built-in speaker remains correctly connected and turn the Volume control down.
- Connect the guitar to the Input with a compatible 1/4-inch TS instrument cable.
- Switch on the amplifier, allow the tubes a brief warm-up period, then raise Volume gradually and adjust Tone.
- After use, lower Volume, switch the amplifier off and let it cool before moving or storing it.
Do not open the chassis or touch hot tubes. Tube replacement and internal service should be handled by a qualified amplifier technician using identical or comparably rated parts specified for the amplifier.
Frequently asked questions
Which tubes are used in the Oxblood GTA-5?
The GTA-5 uses one 12AX7 preamp tube, one 6V6 power tube and one 6Z4 rectifier tube. IVU Creator recommends replacing a tube only with an identical type or one with a comparable rating and quality.
Can I use guitar pedals with the GTA-5?
Yes. IVU Creator describes the GTA-5 as a pedal-friendly amplifier. Connect compatible instrument-level pedals between the guitar and amplifier input, begin with conservative output levels and confirm each pedal's power supply separately.
Does the GTA-5 include reverb, multiple channels or a headphone output?
The official control panel lists one Input plus Volume and Tone controls; it does not list built-in reverb, channel switching or a headphone output. Plan on using the built-in speaker and external effects when those functions are needed.
Is a 5-watt tube amp quiet enough for bedroom practice?
It can be used for home practice, but 5 watts of tube output can still be loud in a small room. Start at a low Volume setting, aim the speaker away from nearby listeners and protect your hearing.
Can I plug the GTA-5 into either 115V or 230V power?
IVU Creator lists a 115V/230V AC setting, but the correct setting must match the local supply before power is connected. Check the product label and selector instructions; do not assume that voltage selection is automatic.
Complete your guitar setup
Use a compatible instrument cable and keep pedal signal levels controlled when building a rig around the GTA-5. Browse the IVU Creator cable collection or explore pedalboard accessories for related setup options.
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To place an order using Order Pickup:
- Find an item and select color, size and quantity (if applicable).
- Select Pick it up or Ship to Store on the item’s page.
- Your set store will be the default store for pickup.
- Proceed to checkout and submit order.
- Wait until you receive a pickup notification before you go to the store to pick up your item.
- Visit Guest Services or the designated pickup location at your selected store to get your item(s).