Fender Groove Tubes Gt-6L6-S Med Quartet

The Fender Groove Tubes GT-6L6-S Med Quartet (part number 555-0113-524) is a set of four 6L6-type power tubes designed for use in guitar amplifiers. These tubes are produced by Groove Tubes, a brand known for making premium replacement tubes. Below are the features and specifications for this model:

Key Features:

1. Tube Type: 6L6 (Power Tube)

   • The 6L6 tube is one of the most common power tubes used in guitar amplifiers, especially in vintage Fender amps. It provides a balance of clean headroom and warmth, with a characteristic smooth break-up when pushed into overdrive.

2. Standard 6L6-S (Medium) Rating:

   • The GT-6L6-S is part of Groove Tubes' medium selection, meaning it is designed for standard performance with a moderate plate current and power handling capability.

3. Matched Quartet:

   • This is a set of four tubes that are carefully tested and matched for performance characteristics, ensuring uniformity and balanced tone when used in a quad configuration (ideal for amps that require a quartet of tubes, such as 4x6L6-powered amplifiers).

4. Tone Characteristics:

   • Known for a balanced tone with a warm, rich low-end, smooth mids, and clear highs.
   • Works well for both clean and mildly overdriven sounds, offering a more refined distortion when pushed hard.
   • Produces a moderate amount of headroom for clean tones, with a natural break-up at higher volumes.

5. Durability & Reliability:

   • Groove Tubes is known for manufacturing durable and reliable tubes, and the GT-6L6-S series is designed to perform well over time, maintaining stable operation and consistent tone.

6. Application:

   • Ideal for guitar amps that use 6L6 tubes, especially classic Fender amplifiers (like the Fender Twin Reverb, Fender Deluxe Reverb, and others) and other American-style tube amps.
   • Suitable for both vintage and modern amplifiers, as well as for players who need consistent and reliable performance in the studio or on stage.

Specifications:

• Type: 6L6
• Power Output: Typically rated for 30-40 watts per tube, depending on the amp's design.
• Filament Voltage: 6.3V
• Plate Voltage: ~500V maximum (depending on the amplifier)
• Max Plate Dissipation: ~25W per tube
• Socket Type: Octal (8-pin)
• Tonal Characteristics:
  • Bass: Tight, but warm
  • Midrange: Smooth and rounded
  • Treble: Clear, with some sparkle but not overly bright
• Country of Manufacture: Often sourced from a variety of global manufacturers depending on batch, but Groove Tubes generally ensures high standards for quality and testing.

Applications:

• Fender Amplifiers: The GT-6L6-S is an excellent replacement for many Fender amps that utilize 6L6 power tubes. It provides the classic Fender clean sound with a touch of warmth.
• Other Tube Amplifiers: While optimized for Fender-style amps, the GT-6L6-S is versatile enough to work in other tube amplifiers that require 6L6 tubes, such as those from brands like Mesa/Boogie, Peavey, or Marshall (depending on the amp's design).