INTRODUCTION “The Dirt” is a single channel guitar tube based amplifier. Born with the idea of being the quintessential of ‘80s rock/hard rock/metal in a very lightweight and portable format is now available in 35 limited edition pieces worldwide. Additional information and audio/video demos can be found at www.redseven-amplification.com or you can contact us any time at info@redseven-amplification.com...
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This amplifier uses potential lethal voltage, it must be inspected only by expert people! WARNING!! Before insert power cord inside The Dirt, check the voltage plate written near IEC socket and be sure to match wall voltage of your country.
For The Dirt we choose best of both worlds: main circuit is design on PCB, to offer a virtually infinite life, when we wired every single cable and connection by hands, putting all our experience in the work.
SOUND DESCRIPTION First born in 2020 as a custom request by our dear friend/customer Giovanni, “The Dirt” showed up couple years later in 2022 at our laboratory for some fresh tubes, when we almost forgot about it. Once set it up and polished a little bit, we have a moment of joy and love for this amplifier, moment who led us to think it was really a waste of time to have just one example of this custom developed circuit in the world for just one guy.
TECHNICAL FEATURES FRONT PANEL: (from left to right) • POWER ON / POWER OFF SWITCH: turn the amplifier on or off. • STANDBY / ON SWITCH: turn the amplifier in standby mode or in operative mode. • ORANGE LED : this led will indicate the state of incoming power supply. It will turn on if everything is ok.
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REAR PANEL (from left to right) • SEND & RETURN: Connection between pre amp and power amp. D100 is shipped with pedal friendly signal level. • OUTPUT: output jacks for connect the amp to cabinets. Please read carefully the impedance before connect your cabinets. •...
FIRST USAGE Before plugging in the power cord, make sure to check input voltage of the amplifier and be sure to match it with your wall voltage, and then insert the power chord. Before plugging in the speaker cable, check the impedance of your cab and match the output impedance of the amplifier with the impedance switch on the rear panel, then connect the speaker cable from cabinet to amplifier.
LOOP FX Loop effects on “The Dirt” is placed between preamp output and power amp input, right before master volume. It’s a buffered 100% serial loop fx with instrument level signal. When loop effect is engaged 100% of your sound will pass thru the effect wired to send/return jacks.
TUBE LAYOUT This amplifier comes with EL34B type tubes in the power amp section and 12AX7B in preamp. Power tube can’t be changed with other type of tubes (i.e 6L6s, KT88s, etc), they can be substitute only with other EL34 type tubes. You need to check the bias every time power amp tubes are changed.
RedSeven Pro Cab series, especially with 4x12 model. We develop this amplifier thru this cabinet so this is the natural extension for it. We suggest you to try “the Dirt” with Creamback 65W (G12M). This is our first choice. Other speakers model/brand can be good too.
By removing the amplifier form his wood cabinet or by making any modification to the original state will violate standard warranty and RedSeven Amplification will not responsible for any damage to people, things or animals. Revision 1.0 March 2023...
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