View all items from this brand

The Groove Tubes SAG-FHG Fender High Gain Kit
kit includes 2 high gain preamp tubes and one matched 12AT7 phase inverter. All SAG kits are selected on a limited basis. The 2 selected high gain ECC83S tubes are optimized for the preamp stage of Fender amplifiers of all eras which use a 12AX7/7025 first gain stage.

Special Applications Group (SAG) provides further testing and grading for certain performance characteristics and these vacuum tubes are specially selected from premium Groove Tubes preamp tubes which have been tested to meet the GT standard.

This 3-tube set is optimized for Fender amps which use 12AX7 or 7025 tubes in V1 and V2. SAG-FHG includes two high gain preamp tubes to be used in the V1 and V2 positions, and one MPI (matched phase inverter) 12AT7 tube for the V6 position (in the case of blackface amps. The V1 and V2 tubes will increase the front end gain structure of the amplifier as much as 20% over typical stock tubes. The matched phase inverter tube will assure a balanced output section when used with matched power tubes (highly recommended) which will assure sustain across the entire range of your instrument.

The MPI (Matched Phase Inverter) is a SAG Selected 12AT7 as is standard Fender practice.

Each of the three kit tubes is marked as to it's specific rating. In the future if you wish to change your gain structure, it is a simple matter to request a higher or lower value as the actual characteristics of your amplifier's gain stage is now known.

Country of origin: China

Groove Tubes SAG-FHG Fender High Gain Preamp Tube Changing Kit Features:

Country of origin: China

Groove Tubes SAG-FHG Fender High Gain Preamp Tube Changing Kit Specifications:

Country of origin: China

Groove Tubes SAG-FHG Fender High Gain Preamp Tube Changing Kit

90 day warranty on power tubes, includes replacement of whole set if one tube goes bad.
180 day warranty for preamp tubes.
3 year warranty on SubstiTubes and Solid State Rectifier.
Check with M-Audio for warranty on GT microphones.

Get your gear covered!

Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!

Pro Coverage includes:

• Accidental damage protection (new gear only)
• Expedited Repair
• Free Shipping (for returns or repairs)
• 100% Coverage for Commercial Use
• Extended Return Period
• Extended Price Protection
• No Lemon Guarantee
• Free Transfer of Coverage to a new owner
• Repair Costs Covered for up to 3 years from date of purchase
• Repairs Can Be Authorized Toll-Free by Phone or the via the web