Crunch

Device image(s)

Device Identification

• Product Name: KYRO CRUNCH

• Device Type: Pedal-format guitar amplifier head

• Amplifier Class: Solid-state power amplifier with tube preamp

• Preamp Tube: ECC83 / 12AX7

• Manufacturer: KYRO Audio

• Form Factor: Pedalboard-compatible compact amplifier

Short Description

KYRO CRUNCH is a compact 100W pedal amplifier featuring a genuine ECC83 tube preamp stage combined with a high-efficiency solid-state power section.

Designed for modern guitarists, it delivers authentic tube-driven crunch tones, flexible EQ shaping, integrated digital reverb, and direct XLR output with cabinet simulation — all in a lightweight, road-ready enclosure.

It is equally suitable for live performance, rehearsal, studio recording, and direct-to-PA setups.

Main Features

• 100W RMS power output

• Genuine ECC83 (12AX7) tube preamp

• Adjustable gain boost (footswitchable)

• Digital reverb

• 3-band EQ (Bass / Mid / Treble)

• Presence control

• 2-way Bright switch

• Effects loop (Send/Return)

• XLR direct output with built-in cabinet simulator

• Pre/Post XLR level selection

• Standby/Mute footswitch

• Boost bypass footswitch

• Universal power input (100–240 VAC)

• Compact pedalboard-friendly format

Use Cases

KYRO CRUNCH is designed for:

• Live stage performance without a traditional amp head

• Fly rigs and compact touring setups

• Direct PA performance using XLR cabinet simulation

• Studio recording without microphones

• Rehearsal spaces

• Backup amplifier for professional players

• Pedalboard-based tone systems

Main Applications

• Rock rhythm guitar

• Blues crunch tones

• Classic British-style overdrive

• Lead boost applications

• Direct recording with cab simulation

• Hybrid analog/digital guitar rigs

• Amp replacement for minimalist setups

User Interface

Top Panel Controls

• Gain – Controls preamp saturation

• Volume (Master) – Overall output level

• Bass – Low frequency shaping

• Mid – Midrange contour

• Treble – High frequency shaping

• Presence – High-end power section response

• Reverb – Digital reverb level

• Bright Switch – High-frequency emphasis

Footswitches

• Standby / Mute – Silences output safely

• Boost Bypass – Activates adjustable gain boost

Rear / Side Connections

• Speaker output

• Effects Send / Return

• XLR Out (with cabinet simulator)

• Pre/Post switch for XLR

• Power input

Use cases

Standard Amp Mode

• Guitar → Crunch → Speaker

• Full 100W output for live performance.

Direct Recording Mode

• Guitar → Crunch → XLR Out (Cab Sim)

• Used for studio recording or FOH connection without a microphone.

Boost Mode

• Engaged via footswitch.

• Adds gain and volume for solos.

Effects Loop Mode

• External modulation, delay, and time-based effects inserted between preamp and power stage.

Mute/Standby Mode

• Cuts speaker output safely during breaks or instrument changes.

Technical Specifications

• Output Power: 100W @ 4Ω / 8Ω • 50W @ 16Ω

• Preamp Tube: ECC83 / 12AX7

• Input Impedance: 1 MΩ

• Direct Output Level: +4 dB (3.472 Vpp)

• Power Supply: 100–240 VAC

• Amplifier Dimensions: 145 × 120 × 65 mm

• Adapter Dimensions: 58 × 135 × 40 mm

• Weight: 1.25 kg (incl. adapter)

• Effects Loop: Yes

• Reverb: Digital

• Cabinet Simulator: Built-in (XLR output)

Installation instructions

⚠ Always connect the barrel jack before connecting the power adapter to mains (100–240 VAC).

⚠ Always use speaker cabinet with proper impedance (4Ω, 8Ω, or 16Ω). Check the position of the impedance selector on the back panel.

⚠ When powering up set the Gain and Master Volume to low levels before increasing gradually.

⚠ Do not enable 48V phantom power when using the XLR direct output with mixing console or audio interface.

⚠ Always use a proper speaker load when operating the power amp output.

Troubleshooting

No Sound from Speaker

• Verify speaker connection.

• Check impedance compatibility.

• Ensure Standby/Mute is not active.

• Confirm Master Volume is raised.

No XLR Signal

• Check Pre/Post switch position.

• Verify mixing console input gain.

• Confirm cable integrity.

Excessive Noise or Hum

• Use ground lift if available.

• Check power source grounding.

• Avoid running audio cables near power cables.

Weak Output

• Ensure Boost is not bypassed unintentionally.

• Check effects loop connections.

FAQs

Q: Can KYRO CRUNCH be used without a speaker?

• Use caution. Always ensure proper load handling when operating power output.

Q: Is it loud enough for live gigs?

• Yes. 100W RMS provides sufficient headroom for stage use.

Q: Is the reverb analog or digital?

• Digital reverb.

Q: Can I use external preamps?

• Yes, via the Return input (effects loop).

Q: Is it pedalboard friendly?

• Yes, compact dimensions allow mounting on most pedalboards.

Compliance

• Designed for indoor musical instrument use

• Operates on universal AC input (100–240V)

• Built according to standard electronic safety practices

• CE-compliant (region dependent)

• 24-month manufacturer warranty

Declaration of conformity: TBD

Printed User Guide(s)

TBD