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Matamp / GT200 MKII / Green / Amp For Sale

The Green Matamp Bass 200 or GT200 as we call it. Now in the mkII version this amp continues to deliver awesome levels of classic valve bass power.

Responding to player requests the GT200mkII features a mid cut control for an even wider range of tones, but the big improvement over the earlier version is the power supply.

A huge C-Core mains transformer, made in the UK exclusively for us, along with massive filter capacitors ensure the amp is always ready to deliver it’s sonic punch. The bass response extends further, ultimately only limited by your choice of cab. The improvement in dynamic range and transient response has to be felt to be appreciated.

The voice switch is essential to matching the preamp to whatever bass you use, and the amp is happy with either or active or passive circuits.

Transformer isolated DI out as standard and the amp can drive 4 or 8 ohm outputs. We use the excellent Gold Lion KT88 that has proved very reliable with great tone.

Available as standard black or custom Green (as pictured), or with optional two band EQ from the mk1, this amp is set to dominate your live sound.

60 day build time required.

Weight: 28 kg

Dimensions: 60 x 30.5 x 30.5 cm

Channels: 1

Panel Controls: Depth, Gain, Bass, Middle, Treble, Presence, Master

Auto Biasing: No

Preamp Valves: 3 x JJ ECC83

Effects Loop: Passive

Handwired: Yes

Output Valves: 4 x KT88

Power (W): 200w

Transformer: Proprietary UK made

Turret Board: Yes

Cathode Biasing: No

Fixed Bias: Yes – four individual bias trim points

Footswitch Controls: N/A

Ohms Output: 4 & 8 ohm speakon outputs

Rectification: Silicon Diode

Output Class: AB Push Pull

Matamp, UK  

Contact name:
Hayden Minett
Opening hours:

Each amplifier is hand built using high quality components mounted on precision-machined turrets and complemented with transformers made to our own design specification.

The Matamp story goes all the way back to the early days of Rock'n'Roll. In the 1950s, the engineers at Radio Craft (as the company was then known) began repairing, modifying and improving various amplifiers, at customers' request. In 1964 they decided to design and build their own amplifiers, and so the Matamp Series 2000 was born. By the late 1960s the growing reputation of Matamp amplifiers led to a collaboration with Orange Music in London. Orange Matamp amplifiers and mixers proved to be both popular and robust. Some of them are still in use forty years later! In the mid 1970s, Orange and Matamp parted company as they wanted to develop in different directions. Matamp concentrated on the booming disco market, developing the ground breaking Supernova mixer and the Quasar series power amplifiers (used by BBC Radio 1 Roadshow among others). Guitar amplifiers took a back seat for a while, with the last new guitar amplifier model being the now highly sought after V14 of which only 41 were produced.

Matamp continues its long tradition of hand crafting amplifiers just a few miles from where it all started in Huddersfield, West Yorkshire. The business is built on over sixty years of heritage and innovation within the field of audio engineering and on a reputation for the highest build quality and careful attention to detail. We are still pioneering new industry trends with our standard range of amplifiers, complemented by our ever-popular customising service.

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