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Suhr SL67 MK2 50w Handwired Guitar Amp Head

SKU: 700938

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 50W Amplifer

The next step of evolution for the legendary Suhr SL series of hand-wired amplifiers, we’d like to introduce the  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 90’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 usefull 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.

PRICE: $6,699
OUTPUT: 50 watts RMS
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: 26” (W) x 8.25” (D) x 10.25” (H)
WEIGHT: 42lbs



Thankyou for shopping with Infinite Music!

Prices on our website do not include shipping costs. For items purchased online, shipping costs will be calculated at checkout. For all other purchases please contact us and we will provide a shipping quote for you

We offer 3 shipping options for your order. These will be available to select at checkout;

1. Shipping 

Some items to QLD, NSW, VIC, ACT and SA may have free shipping, this will be determined at checkout! Deliveries are sent via courier, and tracking will be emailed to you when your order is dispatched.


Some large and bulky items attract a freight charge. Most shipping costs for these items will be displayed on checkout. Some products we request you call first for a quote before purchasing. Thanks.



Free shipping is not available to WA, NT or TAS. Freight charges to these locations will be displayed in the cart on checkout. If your delivery address is rural, or our couriers can not service your area, we will ship via Australia Post.

2. Collect In-Store

If you live local, you are more than welcome to visit us at the store to collect your order. Please call us ahead of time on (07) 5441 5454.

Store opening hours and street address is:

Shop 4/186 Currie St, Nambour QLD 4560
MON-FRI 9am to 6pm
SAT 9.30am to 4pm
SUN Closed


3. Shipping Charged (Orders under $99)


Orders under $99 will incur a small shipping fee. This is calculated at checkout based on the size and weight of your order. You can always add more items to your order to reach the $99 threshold and received FREE SHIPPING on your entire order! (QLD, NSW, VIC, ACT and SA only) Please note some heavy items will incur a small freight charge. This will be calculated at checkout.


Deliveries are via courier, and most orders will be delivered within 5 working days from shipping notification. Please allow up to 10 working days to to WA.


If your delivery address is rural, or our couriers can not service your area, we will ship via Australia Post.

Processing Time


We strive to process orders promptly and usually ship the following working day. You will received an email with tracking information as soon as your order is booked for collection with our couriers. Please allow 2 working days from purchase date before contacting us for shipping information.

Delivery Time


Most orders will be delivered to you within 5 working days from shipping notification. Please allow up to 10 working days to to WA.

International Shipping


Infinite Music does not ship internationally at this time. Sorry for any inconvenience.

Suhr SL67 MK2 50w Handwired Guitar Amp Head

Suhr SL67 MK2 50w Handwired Guitar Amp Head