Marshall Amplification JCM800 Series Rack Power-Amp Products, Phil Campbell, Jerry Horton

Rack Power-Amp Products

EL84 20/20 • EL34 50/50 • EL34 100/100

Phil Campbell

(Motorhead)

Nothing beats the musical roar of a British valve power amp – and nothing roars with more tuneful power than a Marshall.

Our expertise in making full use of the tonality offered by valves has led to our valve-driven power amps becoming revered by musicians the world over and as a result all three models in our power amp range will breathe new life back into the sound of your rack.

EL84 20/20 Valve Power Amp

For the player who wants portability coupled with great Marshall valve tone, we offer the EL84 20/20. This compact, single space, rack-mountable power amp packs 20 Watts + 20 Watts of Marshall valve power. Its quartet of EL84 power valves offers impressive clean headroom, in addition to the magnificent overdriven tones it exudes. A unique Deep switch brings in state-of-the-art, resonance circuitry which works with the speaker cabinet(s) being driven and results in a tight, low-end boost which can’t be mimicked via pre-amp EQ. The unit’s Presence control and Line Level outputs add further to the flexibility of the EL84 20/20’s superb natural tone. Surprisingly loud, the fan-cooled EL84 20/20 is ideal for both studio and live work where valve-driven, harmonically rich tone is a must.

EL34 50/50 & EL34 100/100 Valve Power Amp

Marshall 50 Watt and 100 Watt, EL34-driven, valve power stages are, in the minds of many, the ‘industry standard’. As soon as you hear our EL34 50/50 (50 Watt + 50 Watt) and EL34 100/100 (100 Watt + 100 Watt) valve power amps, you will immediately understand why. Both of these eye-catching units are packed to the brim with Marshall valve tone. Just like expensive hi-fi amps, both the EL34 50/50 and EL34 100/100 are Dual MonoBloc amplifiers – meaning

Jerry Horton

(Papa Roach)

“Marshall have always been the best ...

and they still are.”

that each side (channel) of the stereo amplifier operates as a completely independent unit.

Each channel features its own Gain and Presence controls and our highly specialised ‘True Differential Inverter’ circuitry, ensures that the maximum integrity and pureness of their valve tone is maintained at all times. Each channel also boasts a remotely switchable ‘Voice’ switch which takes you from ‘traditional’ (Voice A) to ‘modern’ (Voice B) and will allow you to cut through any mix. The EL34 50/50 and EL34 100/100 – professional, all-valve power amps that sound as good as they look!

POWER AMP SPECIFICATION

FEATURES	EL84 20/20	EL34 50/50	EL34 100/100
Output (RMS)	20 + 20 Watt	50 + 50 Watt	100 + 100 Watt
Volume Control	1 x Stereo	1 per Channel	1 per Channel
Presence Control	1 x Stereo	1 per Channel	1 per Channel
Voicing Options	Resonance	A/B	A/B
Remote Resonance Switching	✓	No	No
Remote A/B Switching	No	✓	✓
Impedance Selection	✓	✓	✓
Line Level Output	✓	No	No
Link Output	No	✓	✓
Power Amp Valves	4 x EL84	4 x EL34	8 x EL34
Pre-Drives	1 x ECC82	2 x ECC83	2 x ECC83
Phase Inverters	2 x ECC83	2 x ECC81	2 x ECC81
Footswitch (not supplied)	PEDL-10008	PEDL-10008	PEDL-10008
Dimensions (mm)	(270mm Deep)	(330mm Deep)	(330mm Deep)
	1U Rack	3U Rack	3U Rack
Weight (kg)	5	19	20.5

“It’s the rack from hell which needs earplugs.”

From top to bottom:

EL84 20/20

EL34 50/50

EL34 100/100

46 Marshall Amplification Product Catalogue

Marshall Amplification Product Catalogue 47