DULO 830

Device image(s)

Device identification

• Product Name: DULO 830

• Device Type: Class-D pedal-format guitar amplifier

• Amplifier Topology: Class-D power amp with transparent frontend

• Channel Configuration: Single clean channel

• Manufacturer: Zek Engineering Ltd

• Form Factor: Compact pedalboard amplifier

• EAN (GTIN-13): 3800600003800

Short description

DULO 830 is a transparent, single-channel Class-D guitar amplifier designed primarily as a pedal platform.

Unlike traditional guitar amplifiers, the frontend of the DULO does not add coloration, compression, or overdrive. Instead, it faithfully amplifies the tone generated by external pedals or multi-FX processors.

It functions similarly to using the return input of a standard amp head, but with added flexibility such as a bypassable 3-band EQ, Bright switch, cabinet simulator, and independent DI control.

Main Features

• Class-D power amp delivering up to 60W RMS @ 4Ω

• Single clean channel (ideal pedal platform)

• Bypassable 3-band EQ (Bass / Mid / Treble)

• Presence control

• Bright switch

• Bypassable built-in cabinet simulator (XLR only)

• ¼” input and speaker output

• XLR / DI line out with ground lift

• Independent DI level control

• Input gain control

• Mute/Active footswitch

• DULO Tone Enhancer® circuit

• Simultaneous speaker and XLR usage

• Compact, lightweight pedal format

Use Cases

DULO 830 is ideal for:

• Pedalboard-based rigs

• Fly rigs and compact touring setups

• Studio recording via XLR output

• Direct PA performance without traditional amp heads

• Clean amplification for high-gain distortion pedals

• Gain stacking setups

• Stereo guitar rigs

• Backup amplifier for professional players

Main Applications

• Clean amplification platform

• Overdrive / distortion pedal hosting

• Multi-FX integration

• Gain stacking chains

• Direct-to-FOH live performance

• Home recording setups

• Hybrid digital/analog guitar rigs

User Interface

• ¼” Input Jack

• Input Gain Control

• ¼” Speaker Output

• XLR Direct Output

• DI Level Control

• 24VDC Power Input

• Mute/Active Footswitch

• LED Indicator (Red = Mute, Green = Active)

• Bright Switch

• EQ Bypass Switch

• Bass Control

• Middle Control

• Treble Control

• Volume Control

• Presence Control

• Cabinet Simulator Bypass

• Ground Lift Switch

Modes of Operation

1. Active Mode

• LED indicator GREEN

• Power amp engaged

• XLR and speaker outputs active

2. Mute Mode

• LED indicator RED

• Power amp in standby

• No signal at speaker output

• XLR muted

Note: DULO automatically enters Mute mode after:

• Power up

• Unplugging input jack

• Disconnecting power supply

3. Cabinet Simulator Mode

• Active only on XLR output

• Can be bypassed via CAB SIM switch

4. EQ Active / Bypass Mode

• 3-band EQ can be fully bypassed

• Bright switch operates independently

5. Stereo Setup Mode

• Two DULO units can be used for stereo amplification

Technical Specifications

• Input Impedance: 1 MΩ

• Direct Line Out: +4 dB (3.472 Vpp)

• Power Output: 60W @ 4Ω • 30W @ 8Ω • 15W @ 16Ω

• Power Supply: 100–240 VAC (via 24V external adaptor)

• Amplifier Dimensions: 95 × 120 × 50 mm

• Power Adapter Dimensions: 52 × 110 × 32 mm

• Net Weight: 0.81 kg (incl. adaptor & cable)

Installation Instructions

Setup Procedure

• Set Gain and Volume controls to minimum.

• Set EQ controls to 12 o’clock.

• Connect passive speaker cabinet (4–16Ω). IMPORTANT - Do NOT connect active speaker to the speaker output.

• Connect guitar or pedalboard output.

• Connect XLR if needed.

• Connect 24V DC adaptor.

• Connect the AC power (after the 24DC jack)

• Press footswitch to activate.

• Adjust Gain, Volume, DI Level as required.

⚠ Never connect active speakers or headphones to the speaker output.

⚠ Never apply 48V phantom power to the XLR input.

Troubleshooting

No Sound from Speaker

• Check power (LED should be red or green)

• Ensure Active mode (LED green)

• Verify speaker impedance

• Check input cable connection

No Sound via XLR

• Ensure not in Mute mode

• Check DI level control

• Confirm phantom power is OFF

LED Not Lighting

• Check AC adaptor connection

• Verify power cable connection

LED Stays Red

• Input jack not properly inserted

• Incorrect adaptor voltage (<24V)

Digital Noise / Hum

• Likely ground loop

• Use Ground Lift switch

• Isolate other grounded devices

FAQs

Q: Can DULO be used without a speaker cabinet?

• Yes. The XLR output can operate independently.

Q: Can speaker and XLR be used simultaneously?

• Yes.

Q: Does DULO add overdrive?

• No. It is designed to be fully transparent.

Q: What is the purpose of the Gain control?

• It adjusts input saturation and harmonic enhancement.

Q: Can I use phantom power?

• No. 48V phantom power must never be applied.

Compliance

The product complies with:

• EN55013

• European Directives 2014/30/EU

• 2014/35/EU

• 2017/2102 (RoHS)

Printed User Guide(s)

KYRO DULO 830 - Owner's Manual 2.0 (BG).pdf

KYRO DULO 830 - Owner's Manual 2.0 (EN).pdf

Other Documents

KYRO DULO - Dealer Brief - USD.pdf