Available Now at Northeast Music Center!

MESA/Boogie Replacement Tube Set for Dual Rectifier

Restore the power, punch, clarity, and unmistakable response of your MESA/Boogie Dual Rectifier with a complete factory-style replacement tube set. Featuring four MESA 6L6 power tubes, five MESA 12AX7 preamp tubes, and two MESA 5U4 rectifier tubes, this complete retube package provides the standard tube complement required by one of the most influential high-gain amplifiers ever created.
The MESA/Boogie Dual Rectifier helped redefine the sound of modern guitar amplification.
Huge low end, aggressive attack, tremendous gain, and a surprisingly wide range of clean and lower-gain sounds have made the Dual Rectifier a staple of professional stages and studios for decades.
But the sound and feel of any great tube amplifier depend heavily on the condition of the tubes inside it.
Available from Northeast Music Center, this complete replacement tube set gives Dual Rectifier owners the correct standard tube complement for a full power, preamp, and rectifier tube refresh.

COMPLETE REPLACEMENT TUBE SET

• 4 × MESA 6L6 Power Tubes
• 5 × MESA 12AX7 Preamp Tubes
• 2 × MESA 5U4 Rectifier Tubes
• 11 tubes total
• Standard factory-style 6L6 configuration
• Designed for compatible MESA/Boogie Dual Rectifier Solo Head amplifiers

FOUR MESA 6L6 POWER TUBES

The standard Dual Rectifier power section uses:
4 × MESA 6L6 power tubes
These tubes are a fundamental part of the classic Rectifier response.
6L6s provide the combination of:
Strong low end
Excellent clean headroom
Powerful attack
Broad frequency response
Dynamic range
and:
High-volume authority
that works exceptionally well with the Dual Rectifier circuit.
As power tubes age, the amplifier can gradually lose some of that authority.
The low end may become softer.
Attack can lose immediacy.
Clean headroom can decrease.
The amplifier may simply feel less powerful and responsive.
Fresh, properly selected power tubes can help restore the punch and control a healthy Dual Rectifier should deliver.

FIVE MESA 12AX7 PREAMP TUBES

The Dual Rectifier also uses:
5 × MESA 12AX7 preamp tubes
These tubes perform critical functions throughout the amplifier's preamp and signal path.
The Dual Rectifier's preamp is capable of everything from clean tones and pushed crunch to the saturated Vintage and aggressive Modern high-gain sounds that made the amplifier famous.
Healthy 12AX7s help preserve:
Gain structure
Clarity
Articulation
Harmonic complexity
Low-noise performance
and:
Consistent response across the amplifier's channels.

TWO MESA 5U4 RECTIFIER TUBES

This is where the Dual Rectifier gets its name.
The amplifier uses:
2 × MESA 5U4 rectifier tubes
These tubes are part of the amplifier's selectable rectification architecture and contribute directly to the feel and response associated with the Rectifier family.
Tube rectification can create a softer, more elastic response with additional compression and give.
Silicon-diode rectification provides a tighter, faster, more immediate response.
Having healthy 5U4 rectifier tubes ensures that the amplifier can continue delivering the tube-rectified response it was designed to provide.

WHY IT'S CALLED A DUAL RECTIFIER

The name actually describes an important part of the amplifier.
The Dual Rectifier contains:
Two 5U4 rectifier tubes.
These allow the amplifier to offer genuine tube rectification alongside silicon-diode rectification.
The result is not simply a tonal difference.
It's a difference you can feel beneath your fingers.
Tube rectification can feel more elastic and forgiving.
Silicon diodes can feel tighter and more immediate.
That ability to alter the power supply's response is one of the defining characteristics of the Rectifier platform.

THE RECTIFIER SOUND

There are few modern guitar amplifier sounds as immediately recognizable as a properly dialed-in Dual Rectifier.
Huge.
Aggressive.
Deep.
Saturated.
Yet capable of remaining remarkably articulate when the amplifier, cabinet, guitar, and player are working together.
The Dual Rectifier became a cornerstone of:
Hard rock.
Metal.
Alternative rock.
Punk.
Progressive music.
Modern country.
And countless other styles.
But the amplifier isn't simply about gain.
Its enormous dynamic range is part of what makes it so useful.

CLEAN & PUSHED

The three-channel Dual Rectifier gives players lower-gain voices alongside its famous high-gain modes.
Channel 1 provides:
CLEAN
and:
PUSHED
options.
Fresh power and preamp tubes help preserve the headroom, clarity, and dynamic response that allow these sounds to remain lively and useful.

RAW — OPEN & RESPONSIVE

The Rectifier's:
RAW
mode provides a more open, less saturated gain structure.
It can work beautifully for:
Classic rock.
Hard rock.
Crunch.
Blues-rock.
And players who want the attitude of the Rectifier circuit without maximum saturation.
RAW is also a great reminder of how much territory a Dual Rectifier can actually cover.

VINTAGE HIGH GAIN

Switch to:
VINTAGE
and you enter one of the classic Rectifier gain structures.
The response becomes:
Rich.
Saturated.
Thick.
Smooth.
And harmonically complex.
For players who want heavy gain with a somewhat rounder response than Modern mode, Vintage remains one of the amplifier's most useful voices.

MODERN HIGH GAIN

Then there's:
MODERN.
This is the voice that helped define the Dual Rectifier.
Massive low end.
Aggressive attack.
High gain.
Strong presence.
And tremendous physical impact through the right speaker cabinet.
A healthy set of tubes helps maintain the definition necessary to keep all of that gain and low-frequency energy controlled.
The goal isn't simply distortion.
It's authority with articulation.

6L6 OR EL34

Many Dual Rectifier models provide a:
6L6 / EL34 Bias Select Switch
allowing the amplifier to operate with either compatible:
6L6
or:
EL34
power tubes when properly configured.
The standard configuration for this Northeast Music Center replacement package is:
4 × MESA 6L6
6L6s deliver the broad low end, clean headroom, and powerful response most players associate with the classic Rectifier sound.
EL34s can shift the power section toward a different midrange emphasis and more British-influenced response.
For a straightforward factory-style Dual Rectifier retube, however, we recommend clearly identifying this package as the:
STANDARD 6L6 CONFIGURATION.

FIXED-BIAS MESA DESIGN

The Dual Rectifier uses MESA's:
Maintenance-Free Fixed Bias
approach.
On models equipped with the 6L6/EL34 Bias Select switch, the switch must be placed in the correct position for the power tubes being used.
With properly selected MESA tubes and the amplifier correctly configured, the system is designed to operate within MESA's intended performance range without a conventional adjustable bias control.

WHY RETUBE A DUAL RECTIFIER?

Tube wear doesn't always result in immediate failure.
More often, performance changes gradually.
You may begin noticing:
Less low-end authority
Reduced clean headroom
Softer attack
Increased background noise
Microphonic preamp tubes
Reduced gain definition
Inconsistent performance
or:
A general loss of punch and responsiveness
Because those changes can happen slowly, many players don't realize how much performance has been lost until fresh tubes are installed.
A complete replacement set allows the entire tube complement to be refreshed at once.

GREAT FOR PREVENTIVE MAINTENANCE

You don't have to wait for a tube failure before purchasing replacements.
For touring musicians, studios, working guitarists, churches, rehearsal facilities, and serious Rectifier owners, having a complete replacement set available can be excellent preventive maintenance.
The Dual Rectifier uses:
11 tubes total.
Having the correct replacement complement ready before a problem occurs can prevent unnecessary downtime.
At Northeast Music Center, we consider that particularly worthwhile for older Dual Rectifiers that players plan to keep working for decades to come.

KEEP AN ICONIC MESA PERFORMING

The Dual Rectifier isn't simply another high-gain amplifier.
It is one of the amplifiers that changed the direction of modern guitar tone.
Four power tubes.
Five preamp tubes.
Two rectifier tubes.
Eleven tubes total.
Its combination of massive power, selectable rectification, multiple gain structures, and unmistakable feel continues to make the Dual Rectifier relevant decades after its introduction.
At Northeast Music Center, we're proud to support players who continue to use and maintain these great MESA amplifiers.
A fresh tube set isn't about changing what a Dual Rectifier is.
It's about keeping everything players love about it working the way it should.
Power. Punch. Gain. Clarity. Feel. And unmistakable Rectifier authority.

Northeast Music Center is a full line Music retailer located in Northeast Pennsylvania- We are an Authorized Mesa Boogie Dealer and purchase these products direct from MESA HEADQUARTERS IN PETALUMA CALIFORNIA. We do not obtain our MESA AMPLIFIERS or other MESA products from "jobbers" or other dealers. Our MESA AMPLIFIERS AND CABINETS come to you in the factory boxes with factory packing material. We will, upon request, and also randomly, open the box prior to shipping to check that all contents are included and that no damage has been found in shipping from MESA to our Store location. Northeast Music Center does reserve the right to sell these products in our store to daily walk in customers. It is our goal to always have this product in stock and if for any reason we sell out, we will reorder immediately as long as this MESA AMPLIFIER is currently produced for resale by the company. We will order the amplifier in a ample quantity to fill your order. It is our goal to make your experience a good one; We invite you to ask any and all questions about this product.  Please do not purchase this item if you can not pay. This is a new Mesa with full 5 Year factory warranty to the Original Owner. 3 Year Warranty on Speakers.