AX84 is staying put right here for the foreseeable future. Game on!


Account Info
Greetings, Guest.

Login
Reset Password
Create New Account

Browser cookies are required for these functions.

AX84 Hi-Octane Tube Guitar Amplifier Project

[classic projects] [current version] [testing version] [old versions]

Overview

The Hi-Octane is like a juiced up rock and roll amp from the 80's... only smaller. Like a P1 but with an extra preamp tube, this is a good choice for someone who wants more distortion and has built an amp or two before.

Tone goes from cleanish to semi-saturated distortion, depending on gain settings and guitar volume setup. Responds well to pedals and retains your guitars tone.

Features

  • Hi-Gain 12ax7 Preamp
  • 6BQ5/EL84/SV83 Power Tube in Class-A Single Ended Configuration provides a surprisingly loud 5 watts or so of output power.
  • Cathode-follower driven Bass, Mid and Treble tone controls allow you to shape your sound. Alter the values of the components in the tone stack to tailor your sound.

Skill Level: intermediate --- Status: Ready to Build.

Before using these materials, please read our terms and conditions.


Current Materials

P1 Theory Document The P1 Theory Document - although this refers to an old rev (10) of the P1, this information is required reading for understanding the basics of a simple tube amp.
Builders Guide The Builders Guide document for single-ended AX84 projects
10.10.04 Hi-Octane Schematic, bill of materials, board template and chassis layout for the 10.10.04 version of the AX84 Hi-Octane.
08.05.07 Chassis 1 Drill Plan
Drill guide for the P1, Hi-Octane, P1-eXtreme, SEL, and October ~ Studio projects 16" x 8" x 2" chassis.
10.10.04 Hi-Octane Options Guide
This guide contains AX84 options for the Hi-Octane amp.
10.10.04 Hi-Octane Modifications Guide This guide contains AX84 modifications for the Hi-Octane amp.

Older Version Materials

10.06.16 Hi-Octane Schematic, bill of materials, board template and chassis layout for the 10.06.16 version of the AX84 Hi-Octane.
08.05.07 Hi-Octane Schematic, bill of materials, board template and chassis layout for the 08.05.07 version of the AX84 Hi-Octane.
08.04.27 Hi-Octane Schematic, bill of materials, board template and chassis layout for the 08.04.27 version of the AX84 Hi-Octane.  This update adds voltage readings to the schematic.
08.04.10 Chassis Drill Plan
Drill guide for 16" x 8" x 2" chassis.
08.04.10 Hi-Octane Options Guide
This guide contains AX84 options for the Hi-Octane amp.
08.04.10 Hi-Octane Mods Guide
This guide contains user-submitted modifications for the Hi-Octane amp.
06.02.23 Hi-Octane Schematic, board template and chassis template for the 06.02.23 version of the AX84 Hi-Octane.
08.02.29 Hi-Octane Schematic, board template and chassis template for the 08.02.29 version of the AX84 Hi-Octane.
05.11.23 Hi-Octane Schematic, board template and chassis template for the 05.11.23 version of the AX84 Hi-Octane.

Is this area looking a little skimpy? Looking for older materials and soundclips from previous version? Check out [the older versions]


AX84® is a registered trademark of Doberman Music Products, LLC. AX84.COM content may not be reproduced without the express written consent of Doberman Music Products, LLC (sales@dobermanamps.com).
For information about using the AX84® trademark, project names and designs, click here
pg:hioctane pg2: