6l6 Tube Reviews

The following tubes were placed into a Mesa Boogie Mark IV without EQ and played through a 12’ Celestion speaker with a PRS Guitar. Tubes were interchanged every few minutes and a ‘gut reaction’ was recorded. Here are some comparisons and other 6L6 thoughts.

Electro Harmonix 6L6
  • Electro-Harmonix 6L6 EH Power Vacuum Tube
- Great frequency response especially in lower register. This 6L6 delivers a 'darker' tone perfect for high gain or heavy saturation. Another Russian contender for best 6L6!

  • SED SV6L6GC Power Vacuum Tube
- The definition of power tube! Pure, warm tone that delivers the headroom and power needed for higher gain settings as well as crisp, low-volume performance. SED sets the standard with a durable 6L6 perfect for heavy use.

Sino 5881
  • Sino 5881 Power Vacuum Tube
- All the tone for less money. The Chinese Sino delivers a quality performing 5881 with excellent tone and durability. When tone matters as much as price… winner of the 'blind taste challenge'

Sovtek 6L6 WXT+
  • Sovtek 6L6WXT+ Power Vacuum Tube
- Crisp high end definition. Great response with an 'airy glass' over the signal. Great value for great power!

Sovtek 5881WXT+
  • Sovtek 5881WXT Power Vacuum Tube
- Luscious, transparent power. Very pleasing compression effect with full force output. Very warm lows for a 5881!