Based on the Matchless™ DC30
No Presence, No Mid, Tone, Cut
Power: 30 Watts
Controls Ch.1: Volume, Bass, Treble
Controls Ch.2: Volume, Tone, Cut control, Bypassable master volume
Power Tubes: 4 x EL84
Preamp Tubes: 1 x EF86, 3 x 12AX7
Rectifier Tube: 1 x 5AR4
Features: Dual inputs for each channel, Effects loop
Speaker Configuration: Customized Celestion G12H30 and Celestion G12M Greenback
The DC-30 was the company’s first design and still leads the lineup.
Thirty very conservatively rated watts from a quartet of EL-84’s, through two channels, each with unique voicing and tone control layouts, produce a world of tone choices. Pure “Class A” configuration gives rich, complex harmonics whether played clean, mildly overdriven, or with all out power tube saturation. This means you should sound great in any situation, in any music style. Similar to AC30 without breaking, Channel 2 similar to AC15.
A long list of musician designed features includes: highly interactive tone controls and circuitries unique to each channel, bypassable master volume, cut control for high frequency shaping.
The preamp sections are based on a layout of two 12AX7’s in Channel 1 and one EF86 in Channel 2. The two 12AX7’s in Channel 1 create a parallel-triode circuit with interactive bass and treble. The one EF86 in Channel 2 consists of a high-gain pentode coupled to a six-position tone switch. Outright benefits include quick dial-in of new tones and an easy return to the settings you prefer. Also “high treble” cut control, master volume, with a bypass feature that offers flexible control of the power amp section. The power amp is fed by a 12AX7 phase inverter, which drives four EL84 power tubes. The rectifier circuit gives you the flexibility of using one 5AR4 for a quick attack or you can use two 5V4’s for a smooth, round response.
Sound on the 212 Combo is delivered through two dissimilar Celestion speakers: a G12H30 and a Greenback 25, each specially modified through a proprietary MATCHLESS formula.
An AC30 that wouldn’t break down,” the DC30 also became one of the best-loved and most-used amps of hard-working players in the studio and on the touring circuit. These EL84-based class-A beauties are entirely hand-wired in the lauded point-to-point style, and deliver classic British chime, shimmer, and crunch, but with a certain modern clarity and fidelity and a bulletproof robustness relied on by countless pros. Bolted into one of Matchless’ rare exotic-wood cabs, they look awful sweet, too.
What is jumping channels?:
On an amp with more than one input for each channel (eg Hi and Lo) you use a short lead to go from the unused input of the channel your guitar’s plugged into, over to one of the inputs for the other channel. Standard practice on a non top-boost AC-30. By combining the ‘normal’ and ‘bright’ channels you get a wider range of sounds.