Blackstar Series One S1-104EL34 100W Amp - Ex Display

Product ID: 91749

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  • 100-watt valve guitar amplifier head
  • 4 x EL34 power amp valves, 4 x ECC83 and 1 x ECC82 valve
  • Four channels to switch between
  • Twin mode clean channel with warm and bright settings
  • Two overdrive channels, plus dedicated twin mode crunch channel
  • Tone control with ISF
  • Effects loop and MIDI switching
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Delivery to UK mainland addresses* is FREE on orders over £75 and up to 30kg. (As a guide, a standard electric guitar weighs approx. 3-5kg).

Delivery on orders below £75 are charged at £4.45!

Delivery to Northern Ireland, the Scottish Highlands & Islands, Isle of Man, Isle of Wight and Channel Islands is weight dependant and will be indicated at the checkout

Delivery above 30kg to ANY location will vary according to weight and will be indicated at the checkout

LocationPriceStandard Delivery
UK mainland* FREE on orders over £75 £4.45 on orders under £75 1-3 working days
Northern Ireland, Scottish Highlands & Islands Isle of Man Isle of Wight Channel Islands £12.95 – any order value up to 30kg Over 30kg - please call 1-3 working days
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Modern versatile amp with a British heart

The Blackstar Series One S1-104EL34 is a 100-watt valve guitar amp head that nods towards Blackstar’s British heritage. The UK amp brand has built this powerful head around the EL34 power amp valve- the key ingredient to a tone with more ‘Brit’ leanings.

In the S1-104EL34, four of these classic valves are fitted to the power amp, producing powerful, high gain tone, with incredible dynamics. A pre-amp circuit with four ECC83 valves and one ECC82 underpin this powerhouse.

Unlike many amps of this type, the power output can be stepped down to 10-Watts via the DPR power reduction control. By doing this, true power amp distortion can be achieved at much lower volume levels. This is ideal for rehearsals, practice or recording.

Multi-channel design

The 104EL34 features four different, switchable channels. The clean channel has two different modes; one is similar to the warm, Plexi tone, with a second Bright Class A mode. The Crunch channel has a regular ‘Crunch’ setting and a higher gain ‘Super Crunch’. Finally, two separate overdrive channels provide low and high output damping options.

Twin ISF equipped tone control sections

Blackstar’s Infinite Shape Feature (ISF) has won plenty of admirers since its introduction. Put simply, this sweep-able controls all the mid-range character to be adjusted between UK-style tonal character and US-style tonal character. Presence and resonance controls further add to the sound-sculpting potential.

A series effects loop makes connecting your pedal-board a straightforward process, and in addition, the S1 104EL34 provides MIDI inputs, allowing channels to be switched via MIDI devices.

Though a relative newcomer to the amp world, this is a brand that not only wears Brit heritage with pride, but also pushes it forward with even more versatile and innovative designs. The Blackstar Series One S1-104EL34 is a great example of this, providing a huge array of superb tones, in a flexible and powerful amp.

Dimensions705 x 285 x 278.5 mm
Weight59.96lbs (27.2Kg)
Connectivity Inputs:
  • 1/4" Jack Line In
  • 1/4" Jack Speaker Out, Effects Loop
Amplifier Type
Amplifier Technology
Wattage100 Watts
Included AccessoriesFS-3 Footswitch

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