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Boss SD-1 Super Overdrive GT Monte Allums Modified Guitar Effects Pedal

Boss SD-1 Super Overdrive GT Monte Allums Modified Guitar Effects Pedal

The Boss SD-1 Super Overdrive GT Monte Allums Modified is a compact guitar effects pedal designed to produce warm, smooth overdriven tones reminiscent of classic tube amplifiers. This modified version features enhancements that refine its asymmetric overdrive circuitry, delivering a natural growl that preserves the dynamics and nuances of your playing without excessive compression or saturation. It's particularly effective for blues and rock genres, providing a versatile range of drive sounds from subtle crunch to more pronounced overdrive. The pedal's key features include a tone control that allows for precise adjustment of the drive character, enabling guitarists to tailor their sound from bright and cutting to warm and rounded. Built with Boss's renowned durability, the SD-1 is housed in a robust metal casing that withstands rigorous use, making it suitable for both studio sessions and live performances. The asymmetric overdrive circuit is engineered to emulate the responsive feel and harmonic richness of a valve amplifier, offering a more organic and dynamic response compared to standard symmetric clipping designs. Ideal for electric guitarists seeking reliable, roadworthy overdrive tones, the SD-1 Modified fits seamlessly onto pedalboards due to its compact size. It works well with clean amplifiers to add grit and character or can be used to push an already driven amp into higher gain territories. The modifications enhance its versatility, making it a practical choice for players who value both classic rock tones and modern playing dynamics. Its straightforward controls ensure ease of use, while the robust construction backed by a five-year warranty provides long-term reliability for musicians at all levels.
Brand:Boss
Compare prices from £52.95 to £80.50
Save £27.55 (34%)
4.8 / 5(60 reviews)
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3 retailers
eBay UK Product reviews 4.9 Best price
£52.95 *
Out of Stock
Andertons Product reviews 4.8 (60)
£79.00 *
In Stock Free delivery over £199.00 Click & collect Pay later: Yes
Retailer information

We checked this product from this store on 17 Feb 2026 at 20:16.

Delivery

Free over
£199.00
Time
Next day for orders over £199
Couriers
DPD

Collection & in-store

Click & collect
Available
Availability
In store & online

Payment & finance

Interest-free
9, 12, 18, 24, 36, or 48 months at 0% APR, subject to product and order value
Min spend
£300.00
BNPL
Available through PayPal Pay in 3, subject to PayPal approval
Pay later
PayPal Pay in 3, V12 Finance

Other

Trust
Feefo Platinum Trusted Service 5 Years in a Row, NAMM 2026 Retail Top 100 Finalist, NAMM 2025 Top 100 Dealer, NAMM 2020 Customer's Choice, NAMM Dealer Of The Year 2018, YouTube Gold Play Button Award
Loyalty
Loyalty points with every order
Open retailer
Scan
£80.50 (incl. £11.50 delivery)
In Stock Next day delivery for orders before 7pm Mon-Fri on GB Mainland, 2 days for other areas Click & collect Pay later: Yes
Retailer information

We checked this product from this store on 14 Feb 2026 at 00:24.

Delivery

Cost
£11.50
Time
Next day delivery for orders before 7pm Mon-Fri on GB Mainland, 2 days for other areas
Restrictions
Next day delivery not available for Ireland and Scottish Highlands
delivery charges and times vary by region.
Couriers
DPD, UPS

Returns & refunds

Methods
Via online request through account or contact form.
Policy
Returns require an RMA number
request through your online account or by contacting the returns department.

Collection & in-store

Click & collect
Available
Ready in
Ready for collection next day by 12 noon for DPD Pickup.
Locations
DPD Pickup shops (e.g., Sainsburys, Halfords, Matalan, Doddle stations, pharmacies) and UPS Access Points.
Fee
£4.99

Payment & finance

Methods
PayPal
Interest-free
4 months on purchases over £99
Min spend
£99.00
BNPL
UK residents only, subject to credit approval, for purchases between £30 and £2000.
Pay later
PayPal Credit, PayPal Pay in 3

Support

Contact
Phone: 01204 474747, Email: [email protected], Address: Scan Computers International Ltd, Bolton.
Self-service
Track orders via DPD app, manage returns through online account.

Other

Rating
4.8/5 from Trustpilot based on over 42,000 reviews
Trust
Award-winning delivery service, NVIDIA Elite Partner
Open retailer

* Price may not include delivery when not stated by the retailer. Prices may have changed since we last checked. We are not liable for any errors or omissions; please confirm price, availability and terms with the retailer before purchasing.

Page last updated: 17 Feb 2026, 20:16