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Jam Tubedreamer mk.2
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Returns
Guitars & Basses (Online & Phone Orders)
We want you to be completely satisfied with your purchase. If you need to return a
guitar or bass, here’s what you need to know:- Returns must be initiated within 3 days of receiving your order.
- To initiate a return, call us at 412-343-5299 for a return authorization number.
- Return shipping is the customer’s responsibility, unless the item arrived damaged or the wrong product was sent.
- If your item shipped with “Free Shipping,” the original outbound shipping cost will be deducted from your refund.
- A 3.5% restocking fee applies to all canceled or returned orders to cover non-refundable payment processing fees.
- Items must be returned in original condition with all packaging materials included. For guitars and basses, that means protective plastic must still be intact on pickups and pickguards; all accessories, case candy, and paperwork must be included; original box and packing materials must be returned.
- We reserve the right to refuse returns or charge an additional restocking fee if items are not returned in original condition.
All Sales Final
We do not accept returns on the following:
- In-store purchases
- Local Pickup Orders (Buy Online / Phone)
- Layaway sales and payments
- Closeout or clearance items
- Purchases involving trades
- Instruments modified at the time of sale or after (example: strap button or pickup installation)
- Amps, Pedals & Electronics. Due to the nature of electronic products, we do not accept returns on amplifiers, pedals, or other electronic gear. If your item appears defective out of the box, contact us immediately — we’ll work with you and the manufacturer on a warranty resolution.
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Description
Jam Tubedreamer mk.2
The overdrive all tubes dream of.
When JAM introduced the Tubedreamer in 2006, their goal was to build the best 808-style overdrive.
That’s what they built then, and what they’ve pushed further with the mk.2.
The Tubedreamer mk.2 delivers a warm, rich, and articulate overdrive, with a carefully tuned midrange that cuts through a mix without ever sounding congested or harsh.
Improved control where it matters
The mk.2 features improved low-gain resolution, providing finer control and unlocking a wider range of usable tones at lower gain settings.
Clipping options
At its core, the Tubedreamer retains the JRC4558D chip, just like the most sought-after vintage units.
A 3-diode asymmetrical clipping stage enhances touch sensitivity, responding naturally to picking dynamics and fretting nuances.
A no-diode clipping mode removes diode clipping, delivering a more open, dynamic, and amp-like response with increased headroom and clarity.
High-gain stage
A dedicated HIGH GAIN footswitch gives access to an additional gain stage, making the Tubedreamer mk.2 suitable for performance use.
Dual internal trimmers provide independent output level control for the high-gain stage in each clipping mode, allowing precise level matching or boosting.
Startup state
The Tubedreamer mk.2 allows you to define the startup state for both the effect and the high-gain stage.
By default, the pedal powers up with both disengaged, but any combination of on/off states can be selected.
Controls:
- LEVEL controls the output level
- TONE adjusts the tonal balance
- GAIN sets the gain level
- CLIPPING toggle selects between asymmetrical clipping and no-diode mode (N)
- HIGH GAIN footswitch engages the high-gain stage
This pedal comes with Jam Pedals' Factory Warranty and our 100% satisfaction guarantee!
Specifications
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Bypass True Bypass
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Power Supply 9 Volts DC Adaptor (Tip-Negative)
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Current Draw 60 mA
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Dimensions 7.5 x 12 x 5.6 cm / 2.9 x 4.7 x 2.2 Inches (With Jacks and Controls)
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Weight 280 g / 0.6 lbs
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Input Impedance 500 kΩ
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Output Impedance < 5 kΩ




