Series One

Series One Guitar Amplifiers

Series One valve guitar amps deliver incredible high gain performance with a level of tonal refinement found previously in only the very best boutique and vintage amps.

Guitarist Choice
Guitarist Gold
Guitar Player Editors Pick
Total Guitar Best Buy
Total Guitar Group Test Winner
Guitar World Platinum
Series One Introduction Image

Series One is the New #1 in professional valve guitar amps. Designed to produce the ultimate guitar tone, built to withstand the rigors of touring. With its dual patent design, Series One raises the bar for valve tone and flexibility. At home, in the studio or on the road, our award-winning Series One valve amps will always deliver. Whether its build quality or tonal excellence, no compromises have been made - if you are looking for the ultimate, professional high gain valve amplifier, why compromise? We didn’t.

Along with the dual patent ISF and DPR features, Series One amps offer the ability to control channel selection via MIDI Program Change messages, a state-of-the-art speaker emulated output with balanced and unbalanced outputs available via XLR and standard jack connectors, and a series effects loop with a +4dBV/-10dBV level switch.

As with all Blackstar products, the Series One amplifiers are designed for maximum reliability. Built to last, versatile and with a tone that is unsurpassable the Series One is everything a professional valve guitar amp should be.

The Series One design sets new standards for tone and versatility and it’s these benchmarks along with an unrivalled attention to detail that sees the Series One guitar amps win award after award. From the herculean power of the 200W head to the magnificently crafted 45W combo, each amp has claimed at least one award in its category.

Series One Features

Products In The Range

Dual Patent Design

Exclusive patented features give Series One unparalleled tone and flexibility.

Two key elements to the Series One design are the patented ISF (Infinite Shape Feature) tone control circuit and the DPR (Dynamic Power Reduction) system. These unique innovations give you a new level of control over your sound.

DPR (Dynamic Power Reduction)

Series One DPR Logo

DPR allows continuously variable power reduction so you can use your valve amp in any playing situation and achieve pure valve output distortion and compression at any volume. DPR is a 'dynamic' circuit, delivering the exact compression (a.k.a. sag) of a small overdriven valve amp, at any volume level. The power is reduced, the feel, tone and reliability of the amplifier is maintained.

Every control has been honed for maximum sonic benefit through hundreds of hours of listening.

ISF (Infinite Shape Feature)

Series One ISF Logo

The ISF control allows you to infinitely adjust the response of the tone control network between any of the traditional voicings in a way that has never before been possible. The whole tone stack response (i.e. Bass, Middle and Treble) is moved yet the tone controls remain fully interactive, just like in a regular tone stack.

The ISF control is continuously variable between all the traditional responses allowing you to effectively design your own sound.

Series One Patents

Better By Design

Traditional construction methods combined with cutting-edge, state-of-the-art design.

Series One Valves
Series One Joints
Series One PCB

Every aspect of a Series One guitar amp is the result of uncompromising care and attention to detail, both for tone and reliability. Our experienced R&D team in the UK refined every aspect of these amps to maximise the tone through hundreds of hours of listening tests.

The Series One range is built to withstand the adversities and demands of life on the road. That’s why all Series One amplifiers have plated-through double-sided PCBs, seam welded 1.6mm steel chassis and 18mm finger-jointed birch ply cabinets, with ‘over-specified’ output and mains transformers constructed using laminations made of the highest grade, grain oriented steel.

Constructed from premium grade materials and using traditional methods, Series One amplifiers are designed to last a lifetime.

Series One Design
"The Blackstar Series One is a brilliantly muscular amp for anyone who demands glorious tube tone… its ISF and DPR controls offer bold twists on tone sculpting, and it can handle just about any gig you throw at it. The Series One’s combination of versatility, innovation, and toughness win it an Editors’ Pick Award."
Guitar Player Magazine (Series One 45)

Series One Artist Quotes

The Series One is used by professional musicians across the world who are looking for the very best in valve guitar amps. From the smallest clubs to the biggest arenas, no matter what the genre of music, Series One will deliver.

Series One Artist - Gus G.

Gus G. - Ozzy Osbourne, Firewind

"This is the amp that will take over the metal world! Amazing tone, incredible gain and top notch quality! The Blackstar Series One 200 is my new addiction."

Series One Artist Neil Schon

Neal Schon - Journey

"The Blackstar Series One 100 is one of the best sounding amps that Ive played through. It produces a powerful punchy-smooth-warm and precise sound. Great dependable amp."

Series One Artist - Nita Strauss

Nita Strauss - Alice Cooper

"When I tried out the Blackstar Series One 104EL34 I found the perfect balance of authentic classic rock tone on one channel and hard hitting modern growl on the next. Ive been using it on tour all summer and this amp just screams on stage every night!"

Series One Artist Ihsahn

Ihsahn - Emperor

"All the clarity and punch I expect from a valve head. Innovative tone shaping features. Effects and midi implementation. The Series One 200 does it all! Blackstar designs obviously have the modern guitar player in mind."

Series One Artist Richie Sambora

Richie Sambora - Bon Jovi

"From studios to stadiums, these are the amps I use."

Series One Artist Joe Don Rooney

Joe Don Rooney - Rascal Flatts

"Clarity can be a rarity when it comes to finding a great amp, but the first Series One 200 I plugged into I heard clarity like no other… every note of the every chord has its own beautiful place within the fullness of the tone."

USA Select Dealers

Series One Select Dealer
The Blackstar Select Dealers are premium dealers that stock both the Series One range and also our Artisan range of guitar amplifiers. If you are looking to try out or purchase anything from these ranges, you can find your nearest Select Dealer below on the map provided. More to be added soon, so do check back with us to see if one has been added in your location.