The EL34 power tubes are the heart of this amp, producing signature harmonic overtones. They bring more dynamic compression and saturation, creating a contemporary 'British' sound that EVH® 5150III® amps are known for, offering great sustain and versatility. Channel one features a bright and compressed clean tone. Channels two and three have a slightly darker, more compressed tone with increased saturation. Channels one and two have dual concentric gain/volume controls and shared EQ (low, mid, high), while channel 3 has its own independent EQ. There's also a rear-panel resonance control to adjust low - frequency response for all channels and a global presence control. Wrapped in an elegant gold - and - black EVH design, this 50 - watt head comes with an effects loop, headphone jack, pre - amp out, and midi - in. Key specifications include a tube amplifier type, specific channel controls, a 1/4' effects loop, various inputs, a 1/4' stereo headphone jack, a 1/4' line out, three channels (Clean, Crunch, and Lead), a solid - state rectifier, 50 watts of power, 7 x JJ ECC83S (12AX7) pre - amp tubes, 2 x JJ EL34 power tubes, and a 4 - button footswitch.
Using this EVH 5150III amplifier is easy. First, connect your guitar to the 1/4' input. If you want to use effects, plug them into the 1/4' effects loop. You can connect headphones to the 1/4' stereo headphone jack for private practice. The MIDI input on the rear is for more advanced setups. To get different tones, use the channel controls. For a clean sound, select channel one. Channels two and three are great for more distorted tones. Adjust the gain, volume, and EQ according to your preference. When it comes to the resonance and presence controls, play around with them to find the best low - frequency response and overall presence for your sound. As for maintenance, keep the amplifier in a dry and clean place. Avoid exposing it to extreme temperatures or humidity. If you need to clean it, use a soft, dry cloth. When not in use, turn it off and unplug it from the power source. If you're replacing the tubes, make sure to follow the correct procedure and use the recommended tube types, like the JJ ECC83S (12AX7) for pre - amp tubes and JJ EL34 for power tubes. Also, handle the 4 - button footswitch with care to keep it working properly.
