Two Masterpiece Voice Modes in One Head: The Ultimate Sonic Chameleon
The Guitar Sanctuary is incredibly proud to showcase this remarkable, pre-owned Divided by 13 JRT 9/15 Amplifier Head in a spectacular custom Red and Cream "V" color scheme. Easily one of Fred Taccone's most ingenious designs, the JRT 9/15 houses two completely independent, switchable tube power sections within a single chassis. Rather than using digital modeling or complex EQ tricks, a simple front-panel toggle lets you physically alter the amp's architecture: select the 9-watt dual 6V6 mode for thick, saggy, touch-sensitive American Tweed growl, or flip to the 15-watt dual EL84 mode to unleash aggressive, chiming British-style mid-range crunch and top-end sparkle.
Rare Factory Master Volume Modification & Dumble Provenance
This specific JRT 9/15 head stands as a unique, highly collectible jewel in the boutique amplifier landscape due to two major variables:
- Factory Master Volume Mod: Unlike standard production JRT heads that must be turned up to window-rattling volumes to achieve natural tube saturation, this unit features a rare, 100% factory-installed Master Volume control implemented by Fred Taccone himself. This allows you to dial in full preamp blossom and output-stage coloring at comfortable, studio-friendly listening levels without changing the amp's core dynamic behavior.
- The "H.A.D." Vault Inscription: Pristinely preserved on the internal wood headshell, the original factory label bears serial number #2472-380, a build date of 12-17-12, and Fred Taccone's personal hand-written "FT" initials next to the historic inscription "H.A.D.". This insider tribute to Howard Alexander Dumble signifies an elite, early-decade circuit hand-tuned for exceptional note bloom, wide touch-sensitivity, and organic input compression.
Excellent Overall Condition & Custom Boutique Cosmetics
Finished in a stunning, high-contrast custom Red Tolex wrap with a striking Cream center-cut "V" accent panel, this hand-built amplifier looks exceptionally regal. Taken in on trade from a meticulous private studio collection, it remains in excellent overall cosmetic and structural condition, showing only very light, minimal signs of handling. Handwired using premium transformers and heavy-duty 13-ply Baltic Birch construction, this amplifier head delivers a dead-quiet noise floor and flawless touring reliability.
Premium Technical Specifications
- Circuit Design: 100% Handwired All-Tube Dual-Power Circuit.
- Power Section Mode 1: 2 x 6V6 Power Tubes yielding 9 Watts RMS (American Tweed Voice).
- Power Section Mode 2: 2 x EL84 Power Tubes yielding 15 Watts RMS (British Chime Voice).
- Preamp Section: 2 x 12AX7 Preamp Tubes.
- Rectifier Section: 1 x 5AR4 Rectifier Tube.
- Controls: Volume, Click-style Tone Selector, Master Volume (Rare Factory Mod), 6V6/EL84 Power Toggle.
- Outputs: Multi-tap Speaker Output (4, 8, or 16 Ohms).
- Forensic Provenance: SN #2472-380, Dated 12-17-12, Handwired with internal "H.A.D." inscription by FT.
- Condition: Pre-owned, Excellent Overall Condition.
- Best For: High-End Studio Recording, Versatile Club Gigs, Multi-Genre Session Work, Collectors seeking rare Dumble-inspired builds.
- Tone Profile: Warm, saggy American compression (6V6 Mode) or punchy, aggressive British bark and midrange bite (EL84 Mode).
- Compared To: Matchless Lightning, Dr. Z Carmen Ghia, Tone King Imperial, Morgan Dual 20.
- Sanctuary Expert Note: "The JRT 9/15 is already an incredible amp, but the factory master volume modification makes this specific head an absolute unicorn. Normally, you have to run these pretty loud to get into the sweet spot. With the factory mod, you can get that rich, touch-sensitive 6V6 tweed sag or chimey EL84 crunch at bedroom or home studio levels. The 2012 'H.A.D.' build marking inside the headshell makes it an undeniable collector's piece that will only appreciate over time."
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