{"product_id":"randall-rd100h-diavlo-100w-3-channel-tube-guitar-amplifier-head","title":"Randall RD100H Diavlo 100W 3-Channel Tube Guitar Amplifier Head","description":"\u003ch2\u003eRandall RD100H Diavlo 100W Tube Guitar Amplifier Head\u003c\/h2\u003e\n\n\u003cp\u003eThe Randall RD100H Tube Guitar Amplifier Head is a 100-watt, three-channel, all-tube amplifier designed for electric guitarists who need versatile clean tones and high-gain distortion. Part of the Diavlo series, it combines 12AX7 preamp tubes, 6L6 power tubes, switchable Tube Boost, and independent channel controls for stage and studio applications.\u003c\/p\u003e\n\n\u003cp\u003eBuilt for rock, metal, and other demanding guitar styles, the RD100H provides three distinct channels for shaping different sounds. The Clean channel offers adjustable headroom and gain, while Gain 1 delivers responsive overdrive for rhythm and lead playing. Gain 2 extends the available distortion range for heavier guitar tones. Each channel features independent Gain and Volume controls, allowing musicians to balance their settings without repeatedly adjusting the master output. The footswitchable Tube Boost introduces additional overdrive, providing greater saturation when needed. Shared Bass, Middle, Treble, and Presence controls allow precise tonal adjustment for different guitars, pickups, and speaker cabinets.\u003c\/p\u003e\n\n\u003cp\u003eThe RD100H also accommodates professional recording and live sound workflows through its speaker-emulated balanced XLR output with Ground Lift. This output electronically reproduces the response of a miked Randall 4x12 speaker cabinet, supporting direct connections to recording interfaces and mixing consoles. A Class A discrete instrument-level effects loop integrates external pedals and processors, while three speaker output jacks accommodate compatible 4-, 8-, and 16-ohm cabinet arrangements. The included RF4CHB four-button footswitch provides independent control over all three amplifier channels and Tube Boost. A heavy-duty steel grille and protective enclosure complete this professional tube amplifier head.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100W All-Tube Amplification:\u003c\/strong\u003e Combines 12AX7 preamp tubes and 6L6 power tubes to deliver responsive guitar amplification for rehearsals, recording sessions, and live performances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Independent Channels:\u003c\/strong\u003e Clean, Gain 1, and Gain 2 channels provide distinct tonal options ranging from lower-gain clean sounds to aggressive high-gain distortion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFootswitchable Tube Boost:\u003c\/strong\u003e Adds an additional layer of tube overdrive, allowing guitarists to increase saturation for solos and heavier rhythm passages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Channel Controls:\u003c\/strong\u003e Separate Gain and Volume adjustments for all three channels allow precise control over distortion levels and channel balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Control Tone Shaping:\u003c\/strong\u003e Shared Bass, Middle, Treble, and Presence controls provide detailed adjustment of frequency response and tonal character.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass A Discrete Effects Loop:\u003c\/strong\u003e Instrument-level Send and Return connections accommodate compatible external effects pedals, processors, and preamplifiers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker-Emulated XLR Output:\u003c\/strong\u003e Balanced direct output with Ground Lift simulates a miked Randall 4x12 speaker cabinet for recording and live sound integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Four-Button Footswitch:\u003c\/strong\u003e Randall RF4CHB controller provides remote switching for all three amplifier channels and the Tube Boost function.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003ch4\u003eGeneral Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Randall\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e RD100H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer SKU:\u003c\/strong\u003e RD100H-U\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Diavlo \/ RD Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Electric Guitar Amplifier Head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmplifier Technology:\u003c\/strong\u003e All-Tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmplifier Configuration:\u003c\/strong\u003e Standalone Head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Output Power:\u003c\/strong\u003e 100W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Power Distortion:\u003c\/strong\u003e 1%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Channels:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel Configuration:\u003c\/strong\u003e Clean, Gain 1, and Gain 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional Operating Mode:\u003c\/strong\u003e Tube Boost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel Switching:\u003c\/strong\u003e Front-Panel Selector or External Footswitch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eTube Configuration\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreamp Tube Type:\u003c\/strong\u003e 12AX7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Tube Type:\u003c\/strong\u003e 6L6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmplifier Circuit Type:\u003c\/strong\u003e Vacuum Tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eChannel Configuration and Controls\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel 1:\u003c\/strong\u003e Clean\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel 1 Gain:\u003c\/strong\u003e Dedicated Gain Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel 1 Volume:\u003c\/strong\u003e Dedicated Volume Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel 2:\u003c\/strong\u003e Gain 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel 2 Gain:\u003c\/strong\u003e Dedicated Gain Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel 2 Volume:\u003c\/strong\u003e Dedicated Volume Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel 3:\u003c\/strong\u003e Gain 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel 3 Gain:\u003c\/strong\u003e Dedicated Gain Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel 3 Volume:\u003c\/strong\u003e Dedicated Volume Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel Selector:\u003c\/strong\u003e Clean \/ Gain 1 \/ Gain 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Boost:\u003c\/strong\u003e Footswitchable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaster Volume:\u003c\/strong\u003e Global Output Level Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandby\/Play Switch:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Switch:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eEqualization and Tone Shaping\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEqualization:\u003c\/strong\u003e Shared Bass, Middle, Treble, and Presence Controls\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBass Control:\u003c\/strong\u003e Adjustable Low-Frequency Response\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMiddle Control:\u003c\/strong\u003e Adjustable Midrange Response\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreble Control:\u003c\/strong\u003e Adjustable High-Frequency Response\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePresence Control:\u003c\/strong\u003e Adjustable Power Amplifier High-Frequency Response\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Function:\u003c\/strong\u003e Additional Tube Overdrive\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eAudio Inputs\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstrument Input:\u003c\/strong\u003e 1 x 1\/4\" Guitar Input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffects Return:\u003c\/strong\u003e 1 x 1\/4\" Jack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFootswitch Input:\u003c\/strong\u003e 1 x Footswitch Connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eAudio Outputs\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker Outputs:\u003c\/strong\u003e 3 x 1\/4\" Speaker Jacks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated Speaker Output:\u003c\/strong\u003e 1 x 16-Ohm Output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParallel Speaker Outputs:\u003c\/strong\u003e 2 x 1\/4\" Jacks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParallel Output Impedance Selector:\u003c\/strong\u003e 4 or 8 Ohms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Ohm Selector Configuration:\u003c\/strong\u003e One 4-Ohm Cabinet or Two 8-Ohm Cabinets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8-Ohm Selector Configuration:\u003c\/strong\u003e One 8-Ohm Cabinet or Two 16-Ohm Cabinets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker Output Restriction:\u003c\/strong\u003e Dedicated 16-Ohm and Parallel Outputs Must Not Be Used Simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Output:\u003c\/strong\u003e 1 x Balanced XLR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Output Processing:\u003c\/strong\u003e Speaker Cabinet Emulation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker Emulation:\u003c\/strong\u003e Miked Randall 4x12 Speaker Cabinet Simulation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXLR Ground Lift:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffects Send:\u003c\/strong\u003e 1 x 1\/4\" Jack\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eEffects Loop and Recording Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffects Loop Type:\u003c\/strong\u003e Class A Discrete Instrument-Level Loop\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffects Loop Connections:\u003c\/strong\u003e Send and Return\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffects Return Function:\u003c\/strong\u003e External Effects Return or Power Amplifier Input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffects Send Function:\u003c\/strong\u003e External Effects Send or Unbalanced Preamplifier Output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker-Emulated Direct Recording:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeaker Emulator Signal Path:\u003c\/strong\u003e Post-Effects-Loop Preamplifier Signal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Recording Output:\u003c\/strong\u003e Balanced XLR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilent Recording Capability:\u003c\/strong\u003e Supported with Appropriate Speaker Load Connected and Manufacturer-Specified Operating Settings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround Loop Management:\u003c\/strong\u003e XLR Ground Lift Switch\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFootswitch Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFootswitch 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