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Suhr SL68 MKII 100 Watt Amplifier Head


Available on backorder

This product is on backorder, so you can buy it now and it will ship to you as soon it's re-stocked, or use the form below to receive an email when it's back in stock.

We're currently out of stock on this item but if you'd like to inquire about incoming stock, a special order or a custom build, use the form below to get in touch with one of our specialists, and we'll get you taken care of!
– Matt's Music Staff


From Suhr:

THE ALL-NEW SL68 MkII 100W Amplifier

The next step of evolution for the legendary Suhr SL series of hand-wired amplifiers, we’d like to introduce the SL68 MkII & SL67 MkII.

The ultimate no-compromise recreation of classic British tones.

From sparkling cleans to screaming high-gain Variac style overdrive tones, the SL MkII Series responds dynamically to every nuance of your playing style and instrument with just a turn of your guitar’s volume control.

Single Channel with Expanded Tonal Range

4 Inputs with the addition of 3 switches and the all-new transparent Master volume circuit, the new SL MkII series deliver the complete range of tones possible from a classic British-style amp. at any volume.

CHANNEL I INPUT TOP: High sensitivity and voiced brighter than Channel II.

CHANNEL I INPUT BOTTOM: Low sensitivity and offers a slightly warmer tone.

CHANNEL II INPUT TOP: High sensitivity and offers a normal/bassier tonal response.

CHANNEL II INPUT BOTTOM: Low sensitivity and a normal/bassier tonal response.

Fat-Cap, Mid-Boost & 3-Way Bright Switches

Fat-Cap Switch: One of the only tweaks found on a very famous amp John worked on in the 80’s, the Fat-Cap, adding low-end punch and bass that’s perfect when using the ‘Treble’ channel. In the original SL series, the ‘Fat’ cap was always in the circuit. This switch allows you to remove the Fat-Cap to get closer to a ‘true’, stock vintage amp.

Mid-Boost Switch: Dial in the perfect amount of midrange punch to cut through the mix. The Mid-Boost give a bit more gain to the phase inverter and a subtle lift to the tonestack, boosting the gain to the mid range. Most useful when dimeing the controls.

3-Way Bright Switch: Add brilliance and sparkle to your tone, with clarity and presence. This switch allows you to choose between 3 different values, ‘Off’ is the original SL series, all-the-way bright which is the stock value found in vintage amps and a middle position that is somewhere in between.

New Master Volume Control

Say goodbye to the need for external attenuators. Our redesigned Master Volume circuit gives you total control over your amp’s output, preserving your tones unique character, whether you’re in a bedroom jam or commanding the stage. This type of master volume control is highly effective at transparently controlling the output of the amp. When the control is at 10, it is completely transparent and out of the circuit. Start turning it down, and the amps volume can be reduced all the way to whisper levels.

Variac (Low-Power) Mode

The three position power switch incorporates a low power Variac™* mode which lowers the amount of voltage available to the amp. This classic mod makes the amp feel much more spongy with a smoother attack and has been the foundation for some of the greatest rock tones of all time. To avoid having to re-bias the amp when switching power modes, SL amplifiers have two internal bias adjustments, one for HI power, the other for LOW.

*Variac is a trademark of ISE, Inc.

Custom “Plexi” Output Transformer

Output transformers have a major impact on tone. It’s the bridge between the output section of the amplifier and your speaker cabinet. We’ve spent countless hours listening to different transformers until the spec was finalized for our custom “PLEXI” output transformer. This transformer sounds clear, is dynamic, and lends authoritative authenticity to the amplifier.


  • Output: 100 Watts RMS
  • Preamp Tubes: 3x 12AX7
  • Power Tubes: 4x EL34
  • Front Panel: OFF/HI/LOW Power Select Switch, Presence, Bass, Middle, Treble, Volume / I, Volume II controls and four Inputs, 2-way FAT and BST switches, 3-way BRT switch
  • Back Panel: Master Volume, two Speaker outputs, Impedance Selector (4Ω, 8Ω, & 16Ω),
  • HT Fuse, Mains AC Inlet and Mains Fuse
  • H.T. Fuse: F 0.5A/250V (Fast-Blo)
  • Dimensions: 29-1/8″ (W) X 11-5/8″ (H) X 8-1/4″ (D)
  • Weight: 47lbs

Shipping & Returns

Free Shipping

Most orders over $99.00 ship for free inside the lower 48 states. Certain items that are large and heavy do not qualify for free shipping.

We Ship Worldwide!

For information on International Shipping, please call, email or use live chat for rates. Orders shipping outside the Lower 48 States to Hawaii, Alaska, Puerto Rico and international orders do not qualify for free shipping. Orders shipping to U.S. Military APO/FPO addresses, PO Boxes, and US territories (Guam, Virgin Islands, etc.) can only ship USPS. NOTE: Boxes over 70 lbs each cannot be shipped to these locations.

As a security precaution, orders over $200.00 will only ship to the address your credit card company has on file for you.

*Korg and Mesa/Boogie products are only available for shipment within the USA.


We want you to be completely happy with your purchase, so we offer a 48 hour approval period on most purchases (see exclusions below). The 48 hour approval period begins when your purchased item is delivered to your door. If after 48 hours you’re not happy with the item, just contact us via phone, email or live chat on our website to arrange for a return authorization (RA#) and return shipping instructions. Any package sent back without prior authorization will be refused.

Returns must be shipped back to us within two days of the RA being issued. Items must come back to us undamaged and in the same condition they were shipped out. All manuals, paperwork, cables, tremolo arms, wrenches, etc… must be included or full credit will not be issued. Any items not conforming to this policy will be subject (at our discretion) to a restocking fee of 20% of the purchase price.

Refunds will be issued minus all related shipping expenses, if free shipping was initially given, the cost we incurred to get the item to you will be deducted from your refund. A 10% restock fee will also be deducted from your refund. Restock fees will be waived for full value exchanges.

Here are exceptions to our return policy.

  • Custom orders of any kind are non returnable and non refundable. We often charge a deposit before we will place a custom or special order. All special order deposits are NON REFUNDABLE, no exceptions.
  • Microphones, Harmonicas, In-Ear Systems and any other items that come into contact with your mouth or ears.
  • Items labeled as BLOWOUT, are non-returnable. These are often being sold below cost and are considered “all sales final”.
  • Software (this may also include hardware that includes software), unless still in shrink wrap with barcode affixed.
  • Guitar strings, blank media, and other disposable merchandise.
  • Guitar or bass pickups that have been installed or used in any way.
  • Any item advertised as “USED” is non returnable.

*Payments for music lessons are non refundable, no exceptions.

View our detailed Return Policy here.

Early Order Cancellation

All deposits are non refundable. Lots of our products are special orders and in many cases your order has to be built for you at the factory. This is what makes a lot of our products special. Once your order is started, it's being put together just for you. For this reason we ask that you don't cancel your order after you place it with us. If for some reason you absolutely have to cancel your order with us, we will assess you a 25% cancellation charge. This amount is equal to 25% of your total order amount. Ask us before you place your order to see if what you're purchasing is considered a special order.

Damaged Merchandise

Do not accept your shipment if the package shows any signs of external damage. After the item is returned to us we will ship you a replacement. If you receive incorrect or defective merchandise, please call 781-335-0700 within 5 days for a return authorization number.