S40 - 5881 + T1012 Cab ($179 Off!)

Vintage Tweed Grit. Modern Power. Hand-Wired Character.

The S40-5881 is Marla Amplification's powerful take on the beloved low-watt Tweed amps of the 1950s—built not just to emulate the past, but to push it forward. Don't let the name fool you—this amp is loud, raw, and unapologetically expressive.

While its layout mirrors the S20V, the S40 uses a pair of 5881 power tubes to deliver a tighter, punchier, and more articulate version of that 5E3-5F6A style growling overdrive. The result is a tone that retains the creamy breakup and rich midrange of classic Tweed designs, but with enhanced clarity, headroom, and responsiveness.

Bundle Price: $1,899 (Save $179)

S40-5881 Head - 40-Watt Tube Amplifier

Power & Tubes

~40 watts clean power with natural breakup at stage volume

2× 5881 power tubes (upgradeable to 6L6 or EL34/E34L)

2× 12AX7 preamp tubes

GZ34 rectifier for dynamic sag and classic feel

Channels & Controls

Two fully independent channels (A & B)

High and Low sensitivity inputs per channel

Channel jumping capable (use jumper cable or ABY switch)

Per-channel controls: Boost, Volume, Tone

Bright switch for Channel 1

Pull pots for cathode bypass boost

Channel Voicing

Channel A: Fat and focused with strong mid-push—perfect for driven rhythm and bluesy leads

Channel B: Brighter and slightly more open—ideal for edge-of-breakup cleans or jangly rhythm

Jumped: Sensational midrange overdrive and creamy top-end drive

Construction & Components

Hand-wired turret board construction

Orange Drop 715 Series caps

Sozo NexGen Yellow Mustard & Blue Molded coupling caps

Mojotone KingCap filtering caps

Hammond 290 Series power transformer

Hammond 1750 Series output transformer

Switchcraft jacks, Alpha pots

Finger-jointed pine cabinet

Dimensions: 22" W × 22" H × 9" D

Weight: 34–38 lbs

T1012 Americana Extension Cabinet

Speaker Configuration

1× 10" + 1× 12" dual speaker design

Designed specifically to pair with S40-5881

Creates massively smooth American Blues-Rock tone

Cabinet Design

Closed-back with side ports for punchy, open midrange

Center baffle enhances low end while keeping bass tight

Compact dimensions (avoids oversized shipping costs)

Side ports double as offset handles for easy two-hand lifting

Built in North Carolina

Tonal Character

Broad and balanced tone

Adds texture and depth to Tweed-era voicing

Complements any tube amp head

Both units handwired in the USA • Matching finishes available •