The EL84 output pentode was introduced by Mullard in 1954. To demonstrate its use and quality the Mullard applications lab produced an amplifier design.

The standard version includes the following

Beyschlag & PRP resistors.
Mundorf Film capacitors.
AN-A cable for input and output.
Output 17 Watts per channel
Amplifier Class AB1
Size 11″ Width x 4.5″ Height x 13″ Depth
Weight 18.5 lbs
Inputs 1 – 3 stereo inputs (line level)

Circuit design

The majority of components fit onto a single printed circuit board, including the 4x EL84 valves (2 per stereo channel).

We have designed a super solid 3mm thick high quality PCB for our first EL84 offering - these amps need an excellent layout in order to achieve the perfect sound results we are expecting in this serious little audiophile package. The single PCB design allows for a successful build from virtually any builder!
Along with test points for tube cathode voltages and High Voltage, you can fully test your board for operation or do periodic checks for maintenance!

The board also supports additional holes for placement of larger AN copper caps as an upgrade

Rear view showing mains input and switch, RCA signal inputs, and heavy duty speaker terminals

What customers are saying about the EL84 Integrated Amplifier.

Thanks a bunch for turning me on to such great gear, the L1 EL84 kit is truly amazing and great value for the money. It is solid state quiet, has tons of detail, imaging, depth, sparkle. The bass is generous for the EL84 tubes and the treble sparkles. It is captivating and I am falling behind on the responsibilities due to this.



I finished the amp (L1 EL84) last Friday.
I have to say, Awesome! I am listening to it as I type. I am really really pleased with it. It completely blows my transistor (all-be-it home cinema) amplifier out of the water.

The soundstage and clarity are out of this world. It is one sweet sounding amplifier as you said in our initial conversations.

Simon Harrison


It took a long while for it to settle in, but now that it has, I’m very impressed with it. It’s a great sounding amplifier and I find myself listening to my stereo more than I ever have. It has a very natural and balanced sound, with great dynamics and bass. It makes me wonder how much “progress” there has been in the field of amplification if the L1 EL84 is based upon 1950’s technology and circuitry (albeit with modern components). It trashes other amps I’ve had that cost up to 3 times more. No joke. I think I’m off the “upgrade” merry-go-round now, which is a relief.

Jeff New York


Thought, why not try something heavier, so put on Metallica - Black, my goodness!! The L1 EL84 Integrated amp came alive.!. I have not done much comparison yet, but I can say it sounds awesome!! I can feel the difference in the sound stage, clarity, tone, and even tightness in bass. In the end the build was worth it!!

Samson Lopez UK


I feel the sound of the EL-84 based integrated amplifier is very musical, very natural midrange, absolutely amazing female vocals, and very detailed

Dr Glenn Thomas


The first amp is right at the moment playing wonderfull music at my office. It is sounding quite different from the demo we have. Seems to be more of everything!
Most of all in the bass which are deeper and tighter than the last one. But it also seems to be more open in the top. I don't have the right equipment to analyse it out here. But it seems very promising! Exiting to see how it will developing during burn in. And of course. There will be some upgrades as well. Well done!