Skip to main content
MusicRadar MusicRadar The No.1 website for musicians
UK EditionUK US EditionUS AU EditionAustralia SG EditionSingapore
Sign in
  • View Profile
  • Sign out
  • Artist news
  • Guitars
  • Controllers
  • Drums
  • Keyboards & Pianos
  • Guitar Amps
  • Music Gear Reviews
  • Synths
  • Software & Apps
  • More
    • Recording
    • DJ Gear
    • Acoustic Guitars
    • Bass Guitars
    • Tech
    • Tutorials
    • Reviews
    • Buying Guides
    • About us
More
  • Easy Lover
  • Yes
  • 95k+ free music samples
  • Music theory tricks
  1. Guitars
  2. Guitar Amps

NAMM 2013: Two-Rock announces three new amplifiers

News
By Guitarist
Published 1 January 2013

Boutique king set to launch Studio Pro Plus, Sensor and Bi-Onyx in Anaheim

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Two-Rock announces three new amplifiers for NAMM 2013

Two-Rock announces three new amplifiers for NAMM 2013

Two-Rock is set to release three new guitar amplifiers at the 2013 Winter NAMM show in Anaheim, California. The boutique amp brand beloved of John Mayer, Matt Schofield and Eric Gales among other notables, has been gaining popularity worldwide thanks to their more affordable models launched in recent years.

Click onwards for images of the new amps and the official skinny from the Two-Rock press release.

Our thanks to Coda Music of Stevenage and Luton for tipping us off on the news. Check out Coda’s current Two-Rock stock.

Page 1 of 4
Page 1 of 4
Two-Rock Studio Pro Plus

Two-Rock Studio Pro Plus

Two-Rock says:

"Take a Studio Pro, add tremolo and an adjustable foot switched Expansion control and you have the Studio Pro Plus. This new Expansion feature, adds an adjustable EQ bypass adding more gain to the clean channel. This amp now comes complete with our footswitchable tube tremolo. Take these new features and add them to our new medium sized chassis, available in head and combo formats, and you have a great addition to the Studio Pro line of amplifiers."

Features

  • Single channel Studio Pro cleans
  • NEW Expansion control allows an adjustable EQ bypass to the clean channel. This Expansion function increases the amount of gain on the front end. This function is foot switchable
  • Two-Rock’s Tube Tremolo feature with foot switch control
  • New medium sized chassis for head and combo

Specs

  • Single channel Studio Pro platform and controls
  • Analog Spring Reverb with large reverb tank
  • Expansion control – foot switchable
  • Tube Tremolo feature – foot switchable
  • 6V6 power tubes on 22 Watt versions, 6L6 power tubes on all other models, with 4 12AX7 pre amp tubes and 1 12AT7 reverb drive tube
  • Pickup Loading feature
  • Increased Combo and Head dimensions
  • 4, 8, and 16 OHM speaker outputs
  • 22, 35, 50 and 100 watt options
  • Available in Combo or Head
  • Standard cabinet is black, blonde, or blue
  • Speaker (on combo versions): 8 OHM Celestion Creamback or 12-65B with Celestion G12-65 upgrade
  • Combo dimensions: (L)18 5/8” x (D)10 1/2” x (H)20”
  • Head Dimensions: ( L)18 5/8” x (D)10” x (H)10 3/8”

Pricing

  • Studio Pro Plus 22W Head – MAP/MSRP: $2,295
  • Studio Pro Plus 22W Combo – MAP/MSRP: $2,595
  • Studio Pro Plus 35W Head – MAP/MSRP: $2,695
  • Studio Pro Plus 35W Combo – MAP/MSRP: $2,995
  • Studio Pro Plus 50W Head – MAP/MSRP: $3,095
  • Studio Pro Plus 50W Combo – MAP/MSRP: $3,395
Page 2 of 4
Page 2 of 4
Two-Rock Sensor

Two-Rock Sensor

Two-Rock says:

"In the world of two channel amplifiers, the Sensor brings Two-Rock’s classic cleans, mixes a tighter, more aggressive overdrive channel, and adds a fully buffered tube effects loop… the ultimate package for players who love effects."

Features

"For years Two-Rock has been developing and reinventing the two-channel style of amplifier. The latest incarnation replicates the great clean tones that Two-Rock has become known for, and adds a more modern and aggressive lead channel. This lead channel, which incorporates an adjustable, internal tone stack, is voiced similar to British-style amplifiers. The fully buffered, tube effects loop is a first for Two-Rock, incorporating a Send and Return control with a switch for Series or Parallel loop function. This allows the user more control over the amount of signal moving through the loop and returning back to the amp. A new feature, Expansion, adds an adjustable EQ bypass adding more gain to either channel. This feature bypasses the clean channel tone stack, or isolates the internal tone stack on the lead channel."

  • Dual channel clean and lead with cascading gain stages and independent masters
  • NEW Expansion control allows an adjustable EQ bypass to the clean channel or isolates the internal lead tone stack. This Expansion function increases the amount of gain on the front end. This function is foot switchable
  • Fully buffered tube effects loop with Send and Return controls and a switch for Series or Parallel loop function which allows users the ability to use more modern, time based effects
  • New medium sized chassis for head and combo. Newly developed Combo dimensions have increased the dynamics for a harmonically rich tone

Specs

Two Channel (Clean and Lead) with cascading gain stages
Independent Clean and Lead channel Contour controls
Expansion control – foot switchable
6V6 power tubes on 22 Watt versions, 6L6 power tubes on all other models, with 5 12AX7 pre amp tubes
Fully buffered tube effects loop with Send and Return controls and a switch for Series or Parallel loop function
Increased Combo and Head dimensions
4, 8, and 16 OHM speaker outputs
22, 35, 50 and 100 watt options
Available in Combo or Head
Standard cabinet is black, blonde or blue
Speaker (on combo versions): 8 OHM Celestion Creamback or 12-65B with Celestion G12-65 upgrade
Combo dimensions: (L)18 5/8” x (D)10 1/2” x (H)20”
Head Dimensions: ( L)18 5/8” x (D)10” x (H)10 3/8”

Pricing

  • Sensor 22W Head – MAP/MSRP: $2,195
  • Sensor 22W Combo – MAP/MSRP: $2,495
  • Sensor 35W Head – MAP/MSRP: $2,595
  • Sensor 35W Combo – MAP/MSRP: $2,895
  • Sensor 50W Head – MAP/MSRP: $2,995
  • Sensor 50W Combo – MAP/MSRP: $3,295
  • Sensor 100W Head – MAP/MSRP: $3,395
Page 3 of 4
Page 3 of 4
Two-Rock Bi-Onyx

Two-Rock Bi-Onyx

Two-Rock says:

"Optimal versatility: Independent EQ’s and Two-Rock design engineering give you new flexibility and freedom to achieve precisely the tone you want in any performance environment and for any style of music."

Features

"A Two-Rock amp named the Onyx was the brand’s first to offer completely independent clean and lead controls on the front panel. Over time the Onyx built a strong word of mouth and became well known for its superior versatility.

"The Bi-Onyx modifies the original Onyx circuit and is built with the same concepts in mind. It reflects everything we learned in the design and build of the Onyx, and everything we heard from players who were demanding a simpler layout to give them more tonal control."

  • Dual channels have independent clean and lead sections including EQ, Gain, Master, Reverb, Contour - and our newest feature, the Volume Boost
  • The Volume Boost increases the volume without affecting the gain section; that is, without distorting or adding gain
  • The foot switch controls the channel selection and allows you to add the volume boost to each channel.
  • The front panel and foot switch LED’s match, to let you know which channel you’re on and whether the boost function is activated
  • The new output transformer was developed and engineered to deliver a tighter low end and a broader range of highs and mids
  • The new speaker output feature allows you to have multiple cabs in use at the same time
  • We decided to install EL34’s as the stock tube in this amp, but if you prefer 6L6’s… flip the toggle in the back, install your tubes, re-bias … and you’re good to go

Specs

  • Two Channel (Clean and Lead) with an independent set of controls for both channels
  • Stock EL34 or optional 6L6 via rear panel switch (re-bias needed on tube changes)
  • Precision power supply
  • Newly designed output transformer for tighter low end and a broader range of highs and mids
  • Passive loop insertion point between preamp and power stage
  • 4, 8, and 16 OHM speaker outputs with parallel output option on 4 and 8 OHM outputs
  • 50 and 100 watt options
  • Volume boost on clean and lead – foot switchable with LED indicators on amp and pedal
  • Analog spring reverb
  • Dimensions: 20.5" L x 10" D x 12" H / Weight: 42 lbs for 50 watt and 49 lbs for 100 watt
  • Standard cabinet is black, blonde or blue

Pricing

  • Bi-Onyx 50W head – MAP/MSRP: $3,295
  • Bi-Onyx 100W head – MAP/MSRP: $3,595
Page 4 of 4
Page 4 of 4
Guitarist
Guitarist
Social Links Navigation

Guitarist is the longest established UK guitar magazine, offering gear reviews, artist interviews, techniques lessons and loads more, in print, on tablet and on smartphones
Digital: http://bit.ly/GuitaristiOS
If you love guitars, you'll love Guitarist. Find us in print, on Newsstand for iPad, iPhone and other digital readers

Read more
MusicRadar Guitar Gear Round-up July 2026
Guitars MusicRadar’s July 2026 guitar gear roundup: featuring Orange Amps, Harley Benton, Epiphone and more
 
 
MusicRadar Guitar Gear Round-up June 2026
Guitars MusicRadar’s epic guitar gear round-up: June ’26 edit, ft. EHX, PRS, Fender’s mega-launch and more
 
 
Warm Audio x Dirty Boy Junior Series
Guitars Dirty Boy teams up with Warm Audio for affordable versions of its boutique stompbox classics
 
 
Fender Tone Master Pro & FR-15 cab
Guitars Fender gives the Tone Master Pro a mighty firmware update, adding some classics from its amp archive
 
 
Jared James Nichols plays his Gibson Futura on a stage lit up in red-pink.
Artists “I felt like I was levitating off the ground. I felt like I was in Cream in 1968”: Jared James Nichols on why he switched to Marshall amps
 
 
A Blackstar ID:X Floor Three multi-effects pedal and amp modeller on a worn, wooden floor
Guitar Pedals “An effortlessly usable unit that delivers dynamically playable sounds”: Blackstar ID:X Floor Three review
 
 
Latest in Guitar Amps
MusicRadar Guitar Gear Round-up July 2026
Guitars MusicRadar’s July 2026 guitar gear roundup: featuring Orange Amps, Harley Benton, Epiphone and more
 
 
Blackstar Beam Mini
Guitar Amps “What sets it apart is access to a humongous range of amp captures”: Blackstar Beam Mini review
 
 
Blackstar DA5 Ruby Doug Aldrich Combo
Artists Blackstar shrinks Doug Aldrich’s fire-breathing tube head into a compact 5-watt combo
 
 
Marshall Billie Joe Armstrong 1959BJA Artist Signature
Artists A baby blue amp for a Green Day frontman: Marshall launches Billie Joe Armstrong’s “Dookie Mod” head
 
 
Orange Ed Sheeran Outlowd ES3
Guitar Amps Orange Outlowd ES3 Ed Sheeran signature amp review
 
 
MusicRadar Guitar Gear Round-up June 2026
Guitars MusicRadar’s epic guitar gear round-up: June ’26 edit, ft. EHX, PRS, Fender’s mega-launch and more
 
 
Latest in News
OAKLAND, CALIFORNIA - NOVEMBER 18: Steve Hackett performs at Fox Theater on November 18, 2025 in Oakland, California. (Photo by Steve Jennings/Getty Images)
Guitarists “I would even play harmonica or do a walk on”: Steve Hackett is still open to a hypothetical Genesis reunion
 
 
Richie Sambora performs onstage at the 33rd Annual Race to Erase MS Gala held at Fairmont Century Plaza on June 05, 2026 in Los Angeles, California. (Photo by Jesse Grant/Variety via Getty Images)
Guitarists Richie Sambora offers some eyebrow-raising advice to aspiring guitarists
 
 
sub bass speakers
Samples SampleRadar: 473 free sub bass samples
 
 
(MANDATORY CREDIT Koh Hasebe/Shinko Music/Getty Images) Duran Duran at photo studio in Tokyo, May 2, 1982. (Photo by Koh Hasebe/Shinko Music/Getty Images)
Artists “Mick said ‘You know you really do need to stick together'”: How Jagger stopped Duran Duran from splitting
 
 
HOLLYWOOD, CA - APRIL 11:  (L-R) Musicians Chris Cornell, Matt Cameron, Kim Thayil and Ben Shepherd of Soundgarden attend the premiere of Marvel Studios' "Marvel's The Avengers" held at the El Capitan Theatre on April 11, 2012 in Hollywood, California.
Bands Drummer Matt Cameron confirms that a final Soundgarden album is currently being mixed
 
 
MusicRadar Guitar Gear Round-up July 2026
Guitars MusicRadar’s July 2026 guitar gear roundup: featuring Orange Amps, Harley Benton, Epiphone and more
 
 

MusicRadar is part of Future plc, an international media group and leading digital publisher. Visit our corporate site.

Add as a preferred source on Google Add as a preferred source on Google
  • About Us
  • Contact Future's experts
  • Terms and conditions
  • Privacy policy
  • Cookies policy
  • Advertise with us
  • Accessibility Statement
  • Careers

© Future Publishing Limited Quay House, The Ambury, Bath BA1 1UA. All rights reserved. England and Wales company registration number 2008885.

Please login or signup to comment

Please wait...