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Radial Engineering Firefly Single-Channel Active Tube Direct Box

Model: R800 2020

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Specifications

Packaging Info

Package Weight 6.65 lb
Box Dimensions (LxWxH) 13.6 x 8.8 x 4.7"

General Information

Pad Yes, variable input pad
Output Connectors 1x balanced XLR 1x 1/4" Hi-Z buffered, pre or post tube & effects insert loop
Inserts Yes, 1/4" TRS insert loop, wired tip-send, ring-return
Polarity 180°
Ground Ground Lift: Pin-1 at the XLR
Gain 20 dB (Maximum)
Signal to Noise Ratio 85 dB @ +4 dB
Dynamic Range >100 dB
Controls 2x Trim Knobs 1x A/B Select Button 1x Drag On Button 1x Low Cut Knob 1x Level Knob 1x Load Adjust Terminal 1x Recessed Polarity Switch 1x Recessed Ground Lift Switch 1x Recessed Pre Switch
Mute Yes, on all outputs except Tuner (requires separately available JR2 footswitch)
Low Cut Filters Variable from 5 Hz to 500 Hz at -3 dB
Drag Control Yes, load correction for magnetic pickups
Type Audio circuit type: 100% discrete class-A FET with tube drive
Noise Floor -98 dB at unity gain
Equivalent Input Noise -101 dB
Maximum Input Variable from -12 dB to +20 dB
Total Harmonic Distortion 0.15% from 20 Hz to 20 kHz
Intermodulation Distortion 0.3%
Input Impedance Drag On: Variable 22k to 500k Drag Off: 3.9 meg-Ω
Output Impedance 150Ω (nominal)
Power 5-pin XLR, +/-16V & 48V, 1600mA
Specialties 12AX7 Tube drive circuit
Dimensions Without handle: 5.75 x 8.25 x 1.75" (146 x 210 x 45 mm) With handle: 5.75 x 8.25 x 2.75" (146 x 210 x 70 mm)
Weight 3.95 lb (1.80 kg)
Frequency Response 20 Hz to 20 kHz
Input Connections 2x Hi-Z 1/4" connectors, selectable A or B
Product Highlights
  • Class-A Front End & 12AX7 Tube Circuit
  • Two Inputs with Gain & A/B Switching
  • Variable High-Pass Filter
  • Balanced XLR & 1/4" Tuner & Aux Outs
  • Load Correction for Magnetic Pickups
  • Transformer Coupled Balanced Output
  • Optional Footpedal for A/B Switch & Mute
In The Box
  • Radial Engineering Firefly Single-Channel Active Tube Direct Box
  • Power Cable
  • Limited 3-Year Warranty
Still Have Questions?
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