Skip to main content

Friedman TWIN SISTER HEAD 2 Channel - 40 Watt Head - 5881 Tubes - Series FX Loop - Tube Rectified Black

SKU #L78449000001000
36-Month Financing*
Add To Wish List
2899.99 $2,899.99
81 $81/mo. with 36 months financing*
Limited time
More ways to pay:
Lease-to-own with Progressive Leasing. Learn more
Loyalty Points Icon
Loyalty Points Icon
Earn 23,200 reward points
($232.00 in credit)
Inventory Msg Check Mark Inventory Msg Exclamation In Checkout Promo Inventory Msg Download Icon
Order Now!
This item is backordered but is available to reserve now. You will not be charged until the item ships.
  • Free Shipping
  • Top Seller
  • Flexible Financing
  • Lowest Price
Product Warranties Icon Product Warranties Icon

Gold Coverage Protection

Protect your gear

Chevron Right Icon

Signature British tone from the Friedman Twin Sister.

Friedman’s popular Dirty Shirley Head was designed for guitarists that wanted a Vintage Classic Rock tone inspired by British tube amps from the 60’s and 70’s. And what’s better than one Dirty Shirley? TWO DIRTY SHIRLEYS! Introducing the Twin Sister!

The Twin Sister is a 40-watt, 5881 powered, dual channel head based on a modified
JTM 45 but still delivers the signature British tone for which Friedman has become known for.
The amp features two identical channels that can give you everything from gorgeous sparkling cleans
to a glorious vintage crunch and beyond.

Extremely versatile, the Twin Sister can produce many styles of music from blues to rock and country by just adjusting the structure, gain and master controls. The Twin Sister features all the beautiful finishing and solid construction that you would expect from a Friedman amplifier. Designed to take pedals and loves boosts, OD’s phasers, flangers, tremolos and wahs, while the ultra-transparent series effects loop handles your time-based effects pedals and rack units.

The Twin Sister from Friedman Amplification, a real screamer and she fits in your Backseat!


  • Gain, Master, Bass, Middle, Treble per channel

  • Global Presence and Deep knobs
  • Three position gain structure
  • Ultra transparent series FX loop
  • Custom USA made transformers
  • Limited Lifetime Warranty

For gorgeous sparkling cleans to a glorious vintage crunch and beyond. Order today.


TWIN SISTER HEAD 2 Channel - 40 Watt Head - 5881 Tubes - Series FX Loop - Tube Rectified Specifications:

  • 40-Watt all tube head

  • Two-Channel
  • Bright Switch and 3-position Gain Switch per Channel
  • 2 x 5881 power tubes
  • 12AX7 preamp tubes


Questions & Answers

Do you have questions about this product?

Shop with a Friend
Free Shipping
  • Free Standard Ground shipping (48 contiguous states, some overweight and Used/Vintage items excluded).
  • Orders placed before 3 p.m. ET usually ship the same business day.
Learn More
2-Year Free Warranty on Guitars

Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.

Contact Us for Details
We're Here for You

Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.

Contact Us
gear adviser
Want to customize your own bundle?
Our Gear Advisers are ready to help.
Our contact center is currently closed.
Request a Callback
Proactive Advisor Support Chat