Blackstar Doug Aldrich DA100 Ruby Guitar Amplifier Head

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Description
The Blackstar DA100 Ruby is a 100-watt valve guitar head designed with Doug Aldrich, whose career runs through Whitesnake, Dio and The Dead Daisies. Doug had played a Blackstar HT Stage 100 MK III on stage since February 2023, and the DA100 comes from a year of changes he and Blackstar made to that amp. It runs two ECC83 preamp valves and four EL34 power valves, offers three footswitchable channels with six voices, and ships with a 5-way footcontroller.
Channels and Voices
The clean channel switches between an American voice, bright with a solid low end, and a British voice with looser bass and warmer mids that breaks up when pushed. Two hot-rodded Plexi-style overdrive channels share one Bass, Middle and Treble section, and each has a classic and a modern voice. Blackstar's patented ISF control moves the EQ between a US and a UK response, and the amp recalls the last voice used on each channel.
Recording and Live Control
CabRig speaker emulation feeds a balanced XLR output and a stereo line out that doubles as a headphone jack, with three Doug Aldrich presets on a rear-panel switch. Both outputs stay live in standby for silent recording or practice. The USB-C port sends four channels to a computer at once and connects to Blackstar's Architect software for deeper editing. A power switch drops the output to 10 percent, and the footswitchable effects loop has adjustable tail lengths so delays and reverbs ring out after the loop turns off.
Features
- 100 W valve head with 2 x ECC83 and 4 x EL34
- Three footswitchable channels with six footswitchable voices
- Clean channel with American and British voices and its own Bass and Treble
- Two hot-rodded Plexi-style overdrive channels with shared Bass, Middle, Treble and ISF
- Patented ISF (Infinite Shape Feature)
- Digital reverb with Dark (room) and Light (plate) voicing
- Power reduction to 10 percent of full wattage
- Presence, Resonance and master Volume
- Footswitchable effects loop with adjustable tail lengths and +4 dBV / -10 dBV level switch
- CabRig speaker emulation with three Doug Aldrich presets
- USB-C recording with four simultaneous channels and no driver required
- FS-14-DA 5-way footcontroller for channels, voices, 4 dB boost and effects loop
- 2-way footswitch socket with external switching mode
- Fitted with EL34 valves and designed to accept 6L6 valves after a rebias
- Ruby red styling
Specifications
- Output power: 100 W RMS, switchable to 10 percent
- Valves: 2 x ECC83, 4 x EL34
- Channels: Clean, OD 1, OD 2, two voices each
- Controls: Clean Volume, Bass, Treble; OD 1 Gain, Volume; OD 2 Gain, Volume; OD Bass, Middle, Treble, ISF; Reverb, Resonance, Presence, Volume
- Speaker outputs: 1 x 16 ohm; 1 x 8 ohm or 2 x 16 ohm; 1 x 4 ohm or 2 x 8 ohm
- Line outputs: CabRig balanced XLR, stereo line out / headphones
- Effects loop: Send and Return, +4 dBV / -10 dBV
- USB: USB-C; stereo emulated, preamp and dry guitar to the computer, stereo playback from it
- Footswitch sockets: 5-way (FS-14-DA, included), 2-way (FS-15, optional)
- Mains: 100 to 240 V, 50/60 Hz
- Dimensions: 591 x 245 x 225 mm (23.3 x 9.6 x 8.9 in)
- Weight: 17.8 kg (39.2 lb)
In the Box
- Blackstar DA100 Ruby head
- FS-14-DA 5-way footcontroller and cable
- Mains lead














