Vyse Amplification Bulldog - 15w Handwired Valve Combo Electric Guitar Amplifier

Bulldog - 15w Valve Amplifier 

The Bulldog is a 15-watt, British-voiced valve amplifier designed to deliver the classic character of both Marshall and Vox circuits in a single, highly flexible platform. Loud, dynamic, and unapologetically bold, it offers a wide tonal range while retaining a strong, unmistakably British identity.

High and Low inputs accommodate a wide range of pickup outputs, allowing optimal response from both single-coil and humbucking guitars. From there, the Bulldog’s unique control layout sets it apart.

Two independent volume controls—one Marshall-voiced and one Vox-voiced—allow the player to blend gain structures and tonal character directly at the input stage. This dual-volume arrangement makes it possible to move seamlessly between tight, mid-forward British crunch and open, chimey overdrive, or any combination in between.

Following the volume stages is a Treble and Bass tone stack, complemented by a Vox-style Cut control for shaping high-frequency response at the power stage.

The preamp section is built entirely around ECC83 (12AX7) valves, feeding a push-pull power section driven by a pair of EL84 output valves. Valve rectification via a GZ34 contributes to the amplifier’s feel, adding natural compression and dynamic response under load.

A 12” Celestion 70th Anniversary speaker is fitted as standard, chosen for its balanced response, strong midrange, and ability to handle the Bulldog’s output cleanly. Alternative speaker options are available on request.

As with all of our amplifiers, the Bulldog is fully hand-wired using high-quality, serviceable components. There are no PCBs, ensuring long-term reliability, ease of maintenance, and flexibility for future modifications.

Specifications

• Output Power: 15W RMS (push-pull)

• Output Valves: 2 × EL84

• Preamp Valves: ECC83 (12AX7)

• Rectifier: GZ34 valve rectifier

• Speaker: 1 × 12” Celestion 70th Anniversary (standard)

• Controls:

• Marshall-voiced Volume

• Vox-voiced Volume

• Treble

• Bass

• Cut

• Inputs: High / Low

• Construction: Hand-wired, point-to-point

Dimensions & Weight

• Weight: 15kg

• Width: 510mm

• Height: 450mm

• Depth: 230mm