Boss ST-2 Power Stack Pedal

Boss ST-2 Power Stack Pedal



Order before 3pm Mon-Thu for Next Day Delivery

Boss ST-2 Power Stack Pedal
Retail Finance
Click and Collect

The Boss ST-2 Power Stack pedal gives you the sound of valve-based stack amplifiers with a great range of tones to play with.

Three Incredible Amp Stack Sounds

With the ST-2 Power Stack, Boss give you the sound of three incredible amp stacks in one compact pedal.

Enjoy amazing Boss distortion with the amount of power you’d expect from beloved valve amps and professional amp stacks.

Boss ST-2 Power Stamp Pedal Key Features:

  • Original distortion sound reminiscent of tube-based stack amplifiers
  • Provides a wide range of tones, from vintage crunch to ultra high-gain modern distortion
  • Faithful and accurate response to picking nuances and volume changes
  • SOUND knob controls both gain level and sound character
  • Two-band EQ with dedicated BASS and TREBLE knobs
  • Road-tough BOSS construction
  • BOSS five-year warranty

Stack Amp Style Power

Boss have conducted extensive research into the sound and characteristic of a range of popular, classic amps in order to achieve the great sound and power provided by the Boss ST-2 Power Stack pedal.

When you perform with the ST-2 Power Stack pedal, you get a great playing feel and serious power reminiscent of stack amps.

You get incredible, authentic tone from the distortion effect which responds naturally to your picking style and volume of your guitar so you can really put expression into your performance.

From Crunch to Drive to Ultra-High Gain

Along with the Level knob which sets the overall output volume of the Boss ST-2 Power Stack pedal, you’ll find two-band EQ with dedicated bass and treble knobs. Using these controls, you can really sculpt your sound to make sure you get the perfect output you’re looking for.

What really sets the Boss ST-2 Power Stack pedal apart though, is its SOUND knob.

There are three many area for the SOUND knob on the Boss ST-2 Power Stack pedal; CRUNCH, DRIVE and ULTRA, each bringing distinct flavours to your tone.

With the SOUND knob fully left, you can perform with a classic crunchy blues tone. Turn SOUND knob up for more of a classic rick sound with crisp overtones. Finally, if you turn the knob to the extreme right, you get huge heavy-metal distortion.

Legendary Boss Pedal Build Quality

Being a Boss pedal, the Boss ST-2 Power Stack pedal is built like a tank.

Its tough and rugged metal chassis can be relied on so you can be confident when taking this pedal on the road with you.

What’s more, as testament to how confident they are in this pedal’s build quality, Boss offer a five-year warranty.

Years of Research, Great Power Stack

Thanks to Boss’s years of research into amp modelling, the Boss ST-2 Power Stack pedal gives you three authentic amp stack sounds.

Even better, with the onboard controls, you can easily sculpt your sound between these three amp stack sounds and further tailor your tone with the two-band EQ.

Buy the Boss ST-2 Power Stack pedal today and get the awesome sound and power of three valve amp stacks and amazing Boss distortion in one compact pedal.

Boss ST-2 Power Stack Pedal Specs:

  • Nominal Input: Level-20 dBu
  • Input Impedance: 1 M ohm
  • Nominal Output Level: -20 dBu
  • Output Impedance: 1 k ohm
  • Recommended Load Impedance: 10 k ohm or greater
  • Power Supply: DC 9 V: Carbon-zinc battery (9 V, 6F22), Alkaline Battery (9 V, 6LR61), AC Adaptor (optional)
  • Current Draw: 36 mA (DC 9 V)
  • Accessories: Owner's Manual, Alkaline battery (9 V, 6LR61)
  • Option: AC adaptor (PSA series)

Expected battery life under continuous use:

  • Carbon: 3 hours
  • Alkaline: 10 hours

These figures will vary depending on the actual conditions of use

Boss ST-2 Power Stack Pedal Size and Weight (Including Battery):

  • Width: 73 mm, 2-7/8 inches
  • Depth: 129 mm, 5-1/8 inches
  • Height: 59 mm, 2-3/8 inches
  • Weight: 440 g, 1 lbs.
More Information
Manufacturer Boss
SKU 78138
Shipping Weight (kg) 0.560000
Warranty 5 Years


We have a wide range of Delivery Options available, depending on the value of your parcel and budget. Select from our 2-3 Day Saver Service or our Next Working Day options at the Checkout.
This will include a text or email on the day of delivery giving you an exact hour window of when your gear will be with you, and the drivers name - just so you know when to turn the volume down!

  • Free Delivery Available on Selected Products
  • Weekend UK Mainland Delivery (Saturday-Sunday): £19.99
  • Small Items (Under 750g) Small items will be delivered by Royal Mail starting from 99p
  • Heavy Items (Over 30kg): Pallet Service Doorstep Delivery £65

For heavy items, courier details, out of stock products, out of area postcodes or international deliveries see our full Delivery info here.


Rather not wait in for the delivery? Don’t worry, we’ve got you…In Stock items can be ordered and paid for in-advance Online via our Click & Collect service. As long as if it's in stock at your chosen branch, you can collect the item within the hour.

Click here for more about our local Click & Collect Service.


If you and your item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT experts either by phone or email to return your item.

*Please note, we cannot accept returns of:

  • Special/Custom Orders - Any order that is custom or has been personalised.
  • Products with Hygiene Seals - Microphones, any in-ear earphones, monitors, orchestral instruments with mouthpieces and any other items that touch your mouth, nose or inner ear if you have broken the hygienic seal on the packaging.
  • Software & Media - Any software or media that has been opened or registered via physical or digital means.

Click here for more information on Returns at PMT.

Online Orders

If you and your new item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT Experts either by phone or email to return your item or organise an exchange for something more suitable.

Store Orders

If you've changed your mind about something you bought in-store, bring it back within 14 days of purchase and we'll be happy to exchange it for another product, a gift card or store credit.