Vertex Boost MKII Pedal
- Product SKU: VB2
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Note: This item does not qualify for free shipping.
Buy Online, Pick up In-Store
THIS PEDAL WILL TRANSFORM YOUR GUITAR RIG
Don't let the Vertex Boost MKII's name fool you — it's much more than a mere boost. Make no mistake, this multifunction guitar pedal can function as a gain booster, with +16dB of ultra-transparent gain that can either drive your amp into saturation or give your solos a squeaky-clean level bump, depending on where you choose to deploy it. Able to accommodate both line- and instrument-level signals, the Boost MKII also includes ultra-linear input/output buffers that are guaranteed to elevate the sound of your entire rig. This stompbox's buffers can propel a typical mid-level rig into pro-level territory with zero tonal coloration. And if your rig is already 99% of the way there, the Boost MKII will deliver that elusive missing 1%. Beyond that, the Boost MKII's insert jack enables you to adjust your volume via an external treadle-style pedal while keeping your guitar's signal completely isolated — it's like plugging straight into your amp. Boasting a compact enclosure that's 33% slimmer than its predecessor, the Vertex Boost MKII belongs on every tone-obsessed guitarist's pedalboard.
OFFERS MORE THAN +16DB OF EXTRA GAIN WITH ZERO SONIC COLORATION
While the Boost MKII offers a myriad of useful functions, it's a clean booster pedal at heart. Its straightforward Level knob ranges from unity gain to a healthy +16dB. Placing the Boost MKII in front of your amp or dirt boxes adds saturation and sustain to your signal, while placing it after your preamp and dirt boxes gives you a full-range level increase. Best off all, the Boost MKII doesn't change the tone of anything that comes before it — it's sonically invisible.
INPUT AND OUTPUT BUFFERS OPTIMIZE YOUR SIGNAL PATH FOR MAXIMUM TONE
Guitarists are always searching for new ways to elevate the sound of their rig. Thanks to its top-shelf input and output buffers, the Vertex Boost MKII will do just that. How can a set of buffers transform a noisy, novice-sounding rig into a quiet, pro-level one? For starters, these buffers condition your rig's entire analog signal path, ensuring optimal input and stable output. They also exhibit an unprecedented level of linearity, while ensuring zero coloration of your signal — even with dozens of stompboxes in your chain. The Boost MKII's input buffer compensates for pickups with different impedances, ensuring that both single-coil- and humbucker-equipped guitars retain every ounce of their tone, while its output buffer tackles arena-sized cable runs like a champ. Got a hissy, interference-prone passive effects loop? Not anymore — the Boost MKII will convert it into a max-quality, whisper-quiet active loop.
CONTROL YOUR VOLUME WITH AN EXTERNAL VOLUME OR EXP PEDAL
On the rear of the Boost MKII, you'll find a 1/8-inch TRS insert. This enables you to control your volume using an external treadle-style pedal. When the Boost MKII is bypassed, your external pedal will behave as a typical volume pedal, sweeping from zero to unity gain. Turn the Boost MKII on, and the treadle-style pedal will sweep from zero to wherever the stompbox's Level knob is set. You connect the treadle-style pedal to the Boost MKII via a 1/8-inch TRS to 1/4-inch TRS (stereo) cable or a 1/8-inch TRS to dual 1/4-inch TS ("Y" insert) cable (sold separately). Best of all, your guitar's signal is completely isolated from the treadle-style pedal, ensuring zero impact on your tone.
FEATURES
- Boost pedal with +16dB of ultra-transparent level over unity gain
- Drives your amp into saturation or gives your solos a squeaky-clean level bump
- Accommodates both line- and instrument-level signals
- Ultra-linear buffers condition your entire signal path, ensuring optimal input and stable output impedance
- 1-megohm input buffer compensates for pickup loading
- 100-ohm output buffer tackles arena-sized cable runs like a champ
- Converts a noisy passive effects loop into a max-quality, whisper-quiet active loop
- Insert jack enables volume adjustment via an external volume or expression pedal while keeping your guitar's signal isolated and free of "tone suck"
- 33% slimmer than its predecessor (Vertex Boost MKI)
COMPATIBLE VOLUME / EXP PEDALS:
- BOSS FV-30H (accepts "Y" insert cable)
- BOSS FV-30L (accepts "Y" insert cable)
- BOSS FV-50L (accepts "Y" insert cable)
- BOSS FV-50H (accepts "Y" insert cable)
- BOSS FV-500H (accepts insert "Y" cable or TRS cable)
- BOSS FV-500L (accepts insert "Y" cable or TRS cable)
- Dunlop Volume X Pedal DVP8 (accepts "Y" insert cable or TRS cable)
- Dunlop Volume X Pedal DVP4 (accepts "Y" insert cable or TRS cable)
- Dunlop DVP1XL Volume Pedal (accepts "Y" insert cable)
- Ernie Ball 25K Stereo Volume Pedal (accepts "Y" insert cable)
- Ernie Ball 250K Mono Volume Pedal (accepts "Y" insert cable)
- Ernie Ball VP JR 25K (accepts "Y" insert cable)
- Ernie Ball VP JR 250K (accepts "Y" insert cable)
- Korg EXP-2 Expression Pedal (accepts TRS cable)
- Korg XVP20 Stereo Volume/Expression Pedal (accepts TRS cable or "Y" insert cable)
- Lehle Mono or Stereo Volume Pedal (accepts "Y" insert cable)
- M-Audio EX-P Expression Pedal (hardwired TRS cable included)
- Moog EP-3 Universal Expression Pedal (accepts TRS cable)
- Morley M2 Passive Volume Guitar Effects Pedal (accepts "Y" insert cable)
- Morley M2 Passive Expression Guitar Effects Pedal (accepts TRS cable)
- Roland EV-5 (hardwired TRS cable included)
- Visual Sound Visual Volume Pedal (in passive mode — accepts insert "Y" cable)
- Xotic XVP-250K High Impedance Volume Pedal Pedal (accepts insert "Y" cable)
- Xotic XVP-25K Low Impedance Volume Pedal Pedal (accepts insert "Y" cable)
- Yamaha FC-7 (hardwired TRS cable included)
THIS PEDAL WILL TRANSFORM YOUR GUITAR RIG
Don't let the Vertex Boost MKII's name fool you — it's much more than a mere boost. Make no mistake, this multifunction guitar pedal can function as a gain booster, with +16dB of ultra-transparent gain that can either drive your amp into saturation or give your solos a squeaky-clean level bump, depending on where you choose to deploy it. Able to accommodate both line- and instrument-level signals, the Boost MKII also includes ultra-linear input/output buffers that are guaranteed to elevate the sound of your entire rig. This stompbox's buffers can propel a typical mid-level rig into pro-level territory with zero tonal coloration. And if your rig is already 99% of the way there, the Boost MKII will deliver that elusive missing 1%. Beyond that, the Boost MKII's insert jack enables you to adjust your volume via an external treadle-style pedal while keeping your guitar's signal completely isolated — it's like plugging straight into your amp. Boasting a compact enclosure that's 33% slimmer than its predecessor, the Vertex Boost MKII belongs on every tone-obsessed guitarist's pedalboard.
OFFERS MORE THAN +16DB OF EXTRA GAIN WITH ZERO SONIC COLORATION
While the Boost MKII offers a myriad of useful functions, it's a clean booster pedal at heart. Its straightforward Level knob ranges from unity gain to a healthy +16dB. Placing the Boost MKII in front of your amp or dirt boxes adds saturation and sustain to your signal, while placing it after your preamp and dirt boxes gives you a full-range level increase. Best off all, the Boost MKII doesn't change the tone of anything that comes before it — it's sonically invisible.
INPUT AND OUTPUT BUFFERS OPTIMIZE YOUR SIGNAL PATH FOR MAXIMUM TONE
Guitarists are always searching for new ways to elevate the sound of their rig. Thanks to its top-shelf input and output buffers, the Vertex Boost MKII will do just that. How can a set of buffers transform a noisy, novice-sounding rig into a quiet, pro-level one? For starters, these buffers condition your rig's entire analog signal path, ensuring optimal input and stable output. They also exhibit an unprecedented level of linearity, while ensuring zero coloration of your signal — even with dozens of stompboxes in your chain. The Boost MKII's input buffer compensates for pickups with different impedances, ensuring that both single-coil- and humbucker-equipped guitars retain every ounce of their tone, while its output buffer tackles arena-sized cable runs like a champ. Got a hissy, interference-prone passive effects loop? Not anymore — the Boost MKII will convert it into a max-quality, whisper-quiet active loop.
CONTROL YOUR VOLUME WITH AN EXTERNAL VOLUME OR EXP PEDAL
On the rear of the Boost MKII, you'll find a 1/8-inch TRS insert. This enables you to control your volume using an external treadle-style pedal. When the Boost MKII is bypassed, your external pedal will behave as a typical volume pedal, sweeping from zero to unity gain. Turn the Boost MKII on, and the treadle-style pedal will sweep from zero to wherever the stompbox's Level knob is set. You connect the treadle-style pedal to the Boost MKII via a 1/8-inch TRS to 1/4-inch TRS (stereo) cable or a 1/8-inch TRS to dual 1/4-inch TS ("Y" insert) cable (sold separately). Best of all, your guitar's signal is completely isolated from the treadle-style pedal, ensuring zero impact on your tone.
FEATURES
- Boost pedal with +16dB of ultra-transparent level over unity gain
- Drives your amp into saturation or gives your solos a squeaky-clean level bump
- Accommodates both line- and instrument-level signals
- Ultra-linear buffers condition your entire signal path, ensuring optimal input and stable output impedance
- 1-megohm input buffer compensates for pickup loading
- 100-ohm output buffer tackles arena-sized cable runs like a champ
- Converts a noisy passive effects loop into a max-quality, whisper-quiet active loop
- Insert jack enables volume adjustment via an external volume or expression pedal while keeping your guitar's signal isolated and free of "tone suck"
- 33% slimmer than its predecessor (Vertex Boost MKI)
COMPATIBLE VOLUME / EXP PEDALS:
- BOSS FV-30H (accepts "Y" insert cable)
- BOSS FV-30L (accepts "Y" insert cable)
- BOSS FV-50L (accepts "Y" insert cable)
- BOSS FV-50H (accepts "Y" insert cable)
- BOSS FV-500H (accepts insert "Y" cable or TRS cable)
- BOSS FV-500L (accepts insert "Y" cable or TRS cable)
- Dunlop Volume X Pedal DVP8 (accepts "Y" insert cable or TRS cable)
- Dunlop Volume X Pedal DVP4 (accepts "Y" insert cable or TRS cable)
- Dunlop DVP1XL Volume Pedal (accepts "Y" insert cable)
- Ernie Ball 25K Stereo Volume Pedal (accepts "Y" insert cable)
- Ernie Ball 250K Mono Volume Pedal (accepts "Y" insert cable)
- Ernie Ball VP JR 25K (accepts "Y" insert cable)
- Ernie Ball VP JR 250K (accepts "Y" insert cable)
- Korg EXP-2 Expression Pedal (accepts TRS cable)
- Korg XVP20 Stereo Volume/Expression Pedal (accepts TRS cable or "Y" insert cable)
- Lehle Mono or Stereo Volume Pedal (accepts "Y" insert cable)
- M-Audio EX-P Expression Pedal (hardwired TRS cable included)
- Moog EP-3 Universal Expression Pedal (accepts TRS cable)
- Morley M2 Passive Volume Guitar Effects Pedal (accepts "Y" insert cable)
- Morley M2 Passive Expression Guitar Effects Pedal (accepts TRS cable)
- Roland EV-5 (hardwired TRS cable included)
- Visual Sound Visual Volume Pedal (in passive mode — accepts insert "Y" cable)
- Xotic XVP-250K High Impedance Volume Pedal Pedal (accepts insert "Y" cable)
- Xotic XVP-25K Low Impedance Volume Pedal Pedal (accepts insert "Y" cable)
- Yamaha FC-7 (hardwired TRS cable included)
Financing and Leasing Options
Make music more affordable with our flexible financing and leasing options. Applying takes just a few minutes, or you can simply select your preferred option at checkout.
We offer the following financing and leasing options: Affirm, Synchrony, Acima Leasing, and more!
Click here for details.
Affordable, Comprehensive Product Protection from Mulberry

Bananas At Large has partnered with Mulberry to provide you with extended product protection.
Longer-term protection for your purchase
Your Mulberry product protection plan goes beyond our standard coverage to keep your product protected for longer for up to 5 years.
Protect against, drops, spills, and more!
Get protection for peace of mind when accidents happen. Mulberry’s coverage may vary based on the specific product.
Product Failures and Defects
If anything goes wrong with your product beyond the manufacturer warranty, Mulberry has your back with free repairs & replacements
For full coverage details, visit https://www.getmulberry.com
The Best Customer Service in Product Protection
- File your claim in just a few clicks
- No subscriptions or deductibles
- Rapid repairs & replacements
- Highly-rated customer support team
- Gotcha-free coverage
- Easy-to-use digital customer portal

Customers Love Mulberry
“They Make it so easy and fast to make a claim! Worth every penny for my items.”
“Great customer service. Quick Responses. Very Helpful.”
“Absolutely amazing people and help. They do an outstanding job.”
“Highly recommended if the option to have Mulberry insure your expensive piece is there.”
“Outstanding customer service.”
“The employees were very thorough and followed up after every step.”
How does it work
Purchase your Mulberry protection plan
Purchase your Mulberry protection plan along with a Bananas at Large purchase. That’s it! You’ll be automatically registered with Mulberry.
File a claim if something happens
Mulberry’s digital portal lets you file a claim in just a few clicks. Simply log-in to your Mulberry account, click “File a Claim”, and follow the prompts.
Get approved and get your claim resolved!
Your Mulberry protection will extend your manufacturer warranty and may also add protection for accidental damage. As you are shopping, we’ll let you know exactly what is covered for the products you’re interested in.
FAQs
What does the Mulberry plan cover?
Your Mulberry protection will extend your manufacturer warranty and may also add protection for accidental damage. As you are shopping, we’ll let you know exactly what is covered for the products you’re interested in.
What is Mulberry?
Mulberry is the people-first platform for product protection - they work with us to provide you with extended coverage on the products you purchase from our site. Along with comprehensive coverage for your products, Mulberry also offers the following:
- 24/7 customer support
- Hassle-free online claims
- No deductibles or hidden fees
Plus, Mulberry has received more than 500 positive customer ratings on Zendesk — the platform they use to manage customer service inquiries and claims.
How do I sign up for a Mulberry protection plan
It’s easy - just add a protection plan to your cart and check out! After you purchase coverage, you’ll receive a welcome email from Mulberry prompting you to activate your account. Activating your account will give you access to your dedicated warranty dashboard where you’ll be able to view your plan details and full contract terms, and file a claim as needed.
How do I file a claim?
Mulberry makes it easy to file a claim online through their customer dashboard, no receipts needed! You can also contact their customer support team 24/7 at support@getmulberry.com
Will I have to pay a deductible or any other fees?
You’ll never have to pay any fees or deductibles when you file a claim with Mulberry.
What happens if I return or exchange my product?
Each Mulberry Protection Plan is tied to the specific product with which it was purchased. This means when you return or exchange your product, you will also need to cancel the warranty with Mulberry (and purchase a new plan if you prefer). If you cancel your warranty within the merchant’s return window, you will receive a 100% refund for your Protection Plan, minus any claims paid. For returns outside of the merchant’s return window, you will receive a prorated refund, based on the time remaining on your Plan, minus any claims paid.
Returns
- Any New item (other than as noted below) purchased from Bananas at Large may be returned within 14 days of the invoice date, for a full refund, exchange or credit.
- All Pre-Owned products may be returned in 48 hours.
- All Clearance, “additional mark down”, additionally discounted, “blow out”, “door buster” or otherwise identified as on sale may be returned within 7 days unless otherwise specified.
For online orders, the above return policy begins on the day the items were delivered. We must receive an active tracking number within the specified time.
Bananas must be notified within 24 hours of receiving delivery of any issues that pertain to damage during shipping, missing product or incorrect product.
Original Freight, Packing materials and handling fees are not refundable.
Accidental/Order By Mistake
Due to the multi step process to fully check out a purchase, Bananas At Large does not recognize "Accidental or Ordered By Mistake and want to change payment method" as cancelation or refund reason. Bananas is charged processing fees for the purchase and refund as well as expends staff payroll time to process these. Refund requests for this reason will be denied or negotiated a cancelation fee to cover expenses. Please only check out when truly ready to purchase.
See our full Return Policy for all of the pertinent details.
Freight damage policy
If your shipment arrives with visible freight damage (damage that occurred during shipping), please follow these steps within 24 hours of delivery:
- Notify us immediately by emailing [your email address] or contacting customer support.
- Keep all original packaging, including boxes, pallets, foam, and any shipping materials. Do not discard anything.
- Take clear photographs of:
- The damaged item(s)
- The exterior and interior of the packaging
- Any visible damage to the packaging itself
- The shipping label (if possible)
Prompt reporting is essential. Any delay beyond 24 hours may result in your claim being denied by the shipping carrier, which could prevent us from processing a replacement or refund.
Once we receive your notification and photos, our team will review the claim and guide you through the next steps. We work quickly to resolve freight damage issues so you can get a replacement or resolution as soon as possible.
Important Note: This policy applies only to damage caused during transit by the carrier. Damage caused by improper unpacking, misuse, or after the item has been properly received is not covered under freight damage.
Shipping
We understand that when you make an order, you want your gear as quickly as possible and we'll do our best to make that happen! Most of the items we sell will ship quickly and be at your door fast. In most cases, orders ship within 1-3 business days. Shipping and delivery dates are not guaranteed unless otherwise specified.
Most orders $100 and over qualify for FREE shipping within the Continental United States. Some exclusions may apply.
Ensure Secure Deliveries with Signature Confirmation
Want more security? Request Signature Required for your online order. This service is available upon request. We apply Signature Required on all online orders over $200. Please submit in writing if for any reason you do not want this additional service. Your request must be emailed to us prior to shipping - info@bananas.com.
- Service available upon request.
- Signature Required applied to all online orders over $200.
- Limited availability to APO/FPO/DPO locations and certain Freely Associated States.
- Use with any service except Standard Mail® and Adult Signature Services.
See our full Shipping Policy for further details.
Buy online, pick up in store
Order online and pick up at any store location FREE of charge. Avoid online shipping charges and shipping time, and in most cases get your order faster. Enjoy the in store pickup convenience and security of knowing that your can easily return the product if it does not suit your needs within our return policy.
I'm interested! What do I need to do?
- Place your order on bananas.com and choose In-Store Pickup for your preferred location at checkout.
- We'll contact you by email or phone when it's ready for pick up. Need it sooner? Just give us a call and we'll do our best to arrange that: 888-900-1959
- Bring a copy of your valid government-issued ID such as a Driver's License and a digital or print copy of the order confirmation to your local store.
- You have (2 options): Curbside Contactless Pickup or Pick up in Store.
- Curbside Contactless Pickup: When you arrive at the store location, call us and we will bring your order out to verify your ID, place in your vehicle and you're ready to go!
- Pick up In Store: Come into the store, show your ID, and pick up your order.
How does it work?
After you place your order online, the selected store receives your order. Then the merchandise is selected from the store's current inventory and prepared for pick up. If the items are located at another store, there may be a longer wait time as we need to transfer it to the pickup location of your choice. This is all part of our free service. We'll contact you when it's ready and notify you if anything changes. Once your order is ready, you can choose to come into the store to pick up your order OR call us when you arrive and we will provide Contactless Curbside Pickup at your vehicle.
Most orders are ready within 24 hours; however, please allow for extra processing time depending on the item, size of order, and store location. If you need to pick up your order sooner, please give us a call at either location.
See our full Shipping Policy for further details.
Local delivery to your doorstep
Bananas is here to help you support your local economy, shop local, get your musical dreams faster.
FAST: Get Same Day Delivery starting at $35*.
Making your online shopping a little easier. We offer an easy “Order Online, Deliver to your Doorstep”.
This service is currently available for these towns within California: Santa Rosa, San Rafael, San Anselmo, Fairfax, Larkspur, Greenbrae, Corte Madera, Novato, Sausalito, Belvedere/Tiburon, Ross, Kentfield, and Mill Valley. Shipping rates are shown at checkout. Got questions?... Contact us!
*Get same day delivery for in-stock orders received and processed by 2pm, otherwise will deliver the following business day. Delivery fee is based on weight, delivery location and courier fees. Any amounts over $35 - You will be notified to approve before delivery. This is a convenience option only. Deliveries are by a 3rd party delivery service and will deliver to doorstep only. By accepting this delivery process you hereby indemnify Bananas At Large Inc of all responsibility as Bananas At Large is not the delivery agent and assumes no liability on lost or stolen products.
By choosing this option you understand and agree to the following terms:
- Some restrictions apply. For in-stock & available items only.
- You are requesting Bananas at Large to contract on your behalf with a 3rd party service.
- Bananas At Large guarantees the product to be delivered to your doorstep, with photo proof of delivery.
- Bananas cannot and is not responsible for the package safety or security once it is delivered to your doorstep.
- You understand and accept the risk and responsibility of your package once it is delivered.
- Large items, overweight items may incur additional charges.
- Certain delivery zones and homes with access issues may incur additional charges or may not qualify for delivery.
- If the last inventory unit is located at either our Santa Rosa or San Rafael store locations, there may be a delivery delay that may take an additional business day to have it transferred to the store closest to you.
FREE: Free Local Delivery in 1-3 Days.
Free 1-3 day local delivery available for orders over $199*. Contact us for details.
If you aren’t in a rush to receive your items and want free delivery, choose the Free Local Delivery option at checkout. Your order will be processed and delivered within 2-3 business days.
*Applies to full price items only. Can't be combined with any other deals or promotions including Bananas Rewards.
This service is currently available for these towns within California: Santa Rosa, San Rafael, San Anselmo, Fairfax, Larkspur, Greenbrae, Corte Madera, Novato, Sausalito, Belvedere/Tiburon, Ross, Kentfield, and Mill Valley. Shipping rates are shown at checkout. Got questions?... Contact us!
By choosing this option you understand and agree to the following terms:
- Some restrictions apply. For in-stock & available items only.
- You are requesting Bananas at Large to contract on your behalf with a 3rd party service.
- Bananas At Large guarantees the product to be delivered to your doorstep, with photo proof of delivery.
- Bananas cannot and is not responsible for the package safety or security once it is delivered to your doorstep.
- You understand and accept the risk and responsibility of your package once it is delivered.
- Large items, overweight items may incur additional charges.
- Certain delivery zones and homes with access issues may incur additional charges or may not qualify for delivery.
- If the last inventory unit is located at either our Santa Rosa or San Rafael store locations, there may be a delivery delay that may take an additional business day to have it transferred to the store closest to you.
See our full Shipping Policy for further details.
Local pickup only
Some products are available for local pickup only. If you’d like this item shipped, please call us at 1 (888) 900-1959 or text us at (415) 457-7600 to discuss shipping options.
Shipping items with tubes
Bananas does not warranty tubes in transit. We offer tube removal and individual bubble wrap service for $45 per customer request (for standard amps, more complex amps that take more time may be a higher fee). Customers buying any tube product and having it shipped should understand and realize that Bananas cannot be responsible for damaged tubes from transit. This applies to all new and used products. Certain manufactures offer a tube warranty on their new products as a courtesy, and that is available thru the manufacturer warranty process for all new products where it applies.
Warning: Some of the products purchased at Bananas At Large can expose you to chemicals, which are known to the State of California to cause cancer and/or reproductive harm. For more information go to http://www.P65Warnings.ca.
