Invective MH - Guitar amplifier PEAVEY - Free user manual and instructions
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| Product Type | Guitar Amplifier Head |
| Power Output | 20W RMS |
| Preamp Tubes | 1x 12AX7 |
| Power Tube | 1x 6V6GT |
| Channels | 2 (Clean and Lead) |
| Built-in Noise Gate | Yes, adjustable |
| Effects Loop | Series, with level switch |
| USB Output | For direct recording |
| XLR DI Output | With cabinet simulation |
| Headphone Output | 1/4" stereo, with speaker emulation |
| Speaker Outputs | 1x 16Ω, 1x 8Ω |
| Mid Frequency Control | Active and sweepable |
| Dimensions (HxWxD) | 5.5" x 8.5" x 7.5" (14 x 21.6 x 19 cm) |
| Weight | 8.5 lbs (3.9 kg) |
| Power Supply | 100-240V AC, 50/60Hz |
| Power Consumption | 60W |
| Construction | Steel chassis, black textured vinyl |
| Cleaning | Dry cloth; avoid solvents |
| Spare Parts Availability | Tubes, preamp valves, feet |
| Repairability | Modular board, bias test points |
| Safety Features | Ground pin, insulated AC inlet |
| Warranty | 2 year limited (varies by region) |
Frequently Asked Questions - Invective MH PEAVEY
What type of tubes does the Peavey Invective MH use?
The Invective MH uses a single 12AX7 in the preamp and a 6V6GT in the power section. These tubes produce a classic warm overdrive with plenty of gain.
Can I use the Invective MH with a cabinet of different impedance?
The amplifier has two speaker outputs: one for 8Ω and one for 16Ω. Always match the impedance to prevent damage. Using a mismatched load may cause tube stress and reduce performance.
How do I bias the power tube?
The Invective MH features bias test points on the rear panel. Using a multimeter set to DC millivolts, connect the positive probe to the test point and negative to ground. Adjust the bias pot to achieve 25-30mV for a 6V6 tube.
What is the purpose of the Mid Frequency control?
The active, sweepable Mid Frequency control allows you to select a center frequency (from 200Hz to 5kHz) and boost or cut it up to 15dB. This shapes the vocal character of your tone.
Can I record directly with this amp?
Yes, the Invective MH has a USB output for direct digital recording, as well as an XLR DI with cabinet simulation. These allow you to capture your sound without a microphone.
How do I use the built-in noise gate?
The noise gate is controlled by the rear panel 'Gate' knob. Turn it to adjust the threshold. It works best with high gain settings to eliminate hiss and hum between notes.
What is the difference between the Clean and Lead channels?
The Clean channel offers Fender-like bright cleans to light crunch. The Lead channel has two high-gain modes (Modern and Classic) for saturated, heavy distortion ideal for metal.
Does the amp include an effects loop?
Yes, it has a series effects loop with a level switch (-10dB / +4dB) to match pedal or rack effects. Loops are useful for time-based effects like delay and reverb.
How do I clean the amplifier?
Unplug the amp and let it cool. Wipe the exterior with a soft dry cloth. Do not use liquids or aerosols, as they may damage the components. Keep the vents free of dust.
What should I do if the amp loses power?
First check the power cord and the fuse. The Invective MH uses a 1A 250V fuse (5x20mm). If the fuse blows repeatedly, stop using and consult a technician. Also ensure the mains voltage matches the amp's rating (100-240V).
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USER MANUAL Invective MH PEAVEY
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Product information
Brand : PEAVEY
Model : Invective MH
Category : Guitar amplifier