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Compact black tube amp head with front control panel and visible power tubes

Peavey Electronics

Peavey 6505 MH 20W Tube Guitar Amplifier Head

SKU CH-N1HR-PRWGH

A 20-watt all-tube guitar amp head with two footswitchable channels, shared 3-band EQ, reverb and buffered effects loop

  • TypeElectric Guitar
  • Accessory TypeOther
  • Weight20.3000
  • All-tube tone in a compact 20 W head
  • Two footswitchable channels share 3-band EQ and reverb
  • Footswitchable crunch adds instant rhythm grit
  • Buffered effects loop keeps pedalboard signal clean
  • TSI monitoring alerts you to power-tube health

Peavey 6505 MH 20W Tube Head

The Peavey 6505 MH is a 20W all-tube guitar amplifier head built for players who want the classic 6505 high-gain sound in a lightweight format. It runs two EL84 power tubes and three 12AX7ECC83 preamp tubes to deliver the aggressive voicing the series is known for. Guitarists who need a compact head for rehearsal, recording or smaller stages will find it fits the brief.

Installation and common issues

The head arrives ready to connect to a speaker cabinet of appropriate impedance and power handling. Footswitchable channel switching, crunch, reverb and effects loop let you change sounds without reaching for the front panel. Tube monitoring (T.S.I.) indicates power-tube health so you can spot a failing EL84 before it affects a show. Remember to allow warm-up time and match the cabinet impedance to the output.

Sustained-load behaviour

Under continuous playing the all-tube circuit maintains its gain structure and EQ response without the compression artefacts sometimes heard in solid-state designs at high volume. The buffered effects loop stays consistent during long sets and the shared three-band EQ shapes both channels reliably. Power-tube wear appears gradually and the monitoring system flags when replacement is due, keeping tone stable over months of regular use.

Highlights

  • All-tube tone in a compact 20 W head
  • Two footswitchable channels share 3-band EQ and reverb
  • Footswitchable crunch adds instant rhythm grit
  • Buffered effects loop keeps pedalboard signal clean
  • TSI monitoring alerts you to power-tube health

Specifications

BrandPeavey
TypeElectric Guitar
Accessory TypeOther
Weight20.3000

Questions about this item

How do I confirm the 6505 MH is operating correctly after connecting it?

The built-in T.S.I. tube monitoring system constantly checks the two EL84 power tubes and indicates if they are healthy or which specific tube needs replacement.

What comes in the box with the 6505 MH head and what must I purchase separately?

The amplifier head includes two EL84 power tubes, three 12AX7/ECC83 preamp tubes, and a footswitch for channel, crunch, reverb, and effects loop control; you must supply a speaker cabinet and instrument cables.

Which version of the 6505 MH should I choose for portable high-gain tones?

The single 20-watt Micro Head version delivers the full 6505 gain structure and voicing in a 20.3 kg portable format with two footswitchable channels sharing a 3-band EQ, reverb, and buffered effects loop.

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