Blue Note Music

Mason Dixon amp. Fillmore Edition. with 2-12 Cabinet

Name: Mason Dixon amp. Fillmore Edition. with 2-12 Cabinet
Brand: Blue Note Music
Price: 2900.00 USD
Availability: InStock

$2,900.00 USD

Sale Sold out

I researched the Mason Dixon/Missing Link Audio Fillmore East platform, including the current manufacturer specifications, historical 44/45-watt FE documentation, the manufacturer’s cabinet and speaker design, and the Hammond transformer specifications. One important authentication distinction is worth preserving: the Hammond 290DX is a legitimate high-voltage tube-amp power transformer, but the published Mason Dixon documentation does not establish it as a universally specified factory transformer. Therefore, the certificate below identifies it as original to this inspected amplifier with no evidence of replacement, rather than making an unsupported claim that 290DX was the only factory specification.

The manufacturer documentation confirms the Fillmore platform is handwired/point-to-point, U.S.-built, Fillmore East-inspired, and offered in 44/45-watt versions, with selectable voicing and compatible 6L6/KT66-family power sections depending on model. (MLA Pedals) The manufacturer also specifically describes its hybrid JBL-style speaker as beginning with a Peavey Black Widow 4-inch-voice-coil platform, which makes the inspected Peavey speaker particularly relevant to authentication. (MLA Pedals)

BLUE NOTE MUSIC

VINTAGE & BOUTIQUE AMPLIFIER AUTHENTICATION CERTIFICATE

Certificate No.: BNM-MD-FE-2024-080426
Technician: Kevin Carmody
Inspection Date: August 4, 2026
Authentication Status: FULLY AUTHENTIC
Originality Grade: COLLECTOR GRADE
Condition Grade: A — EXCELLENT

AMPLIFIER IDENTIFICATION

Manufacturer: Mason Dixon Amplifiers / Missing Link Audio
Model: Fillmore Edition
Configuration: Piggyback Head & Extension Cabinet
Estimated Production Year: 2024
Country of Manufacture: United States
Power Class: Approximately 44–45 watts, consistent with the Fillmore Edition high-power platform
Construction: Hand-wired / point-to-point
Chassis: Aluminum chassis construction consistent with the Mason Dixon Fillmore platform
Design Heritage: Fillmore East-inspired American boutique tube amplifier

Research Identification

The inspected amplifier is consistent with the Mason Dixon Fillmore Edition high-power platform produced by Missing Link Audio. Manufacturer documentation identifies the Fillmore East 44-watt series as a handwired, point-to-point amplifier using an aluminum chassis, with selectable voicing and a cathode-biased power section capable of accommodating multiple compatible power-tube types. The earlier 45-watt Fillmore Edition documentation likewise identifies a handwired 6L6-based platform with master volume and selectable contour/voicing functions.

The Fillmore Edition is specifically designed around the tonal characteristics associated with the Allman Brothers' Fillmore East-era equipment, incorporating design elements intended to reproduce both Duane Allman and Dickey Betts-inspired tonal characteristics.

IMPORTANT FACTORY / MODEL SPECIFICATIONS

The following specifications are supported by manufacturer and period documentation for the Mason Dixon Fillmore Edition family:

Handwired / point-to-point construction
U.S.-built
High-power FE platform: approximately 44–45 watts
Tube power amplifier
Cathode-biased power section on current FE 44 platform
Selectable Fillmore-style voicing
Master volume
Multiple compatible power-tube configurations depending upon FE model
12AX7 / EF86-family preamp architecture on later 44-watt models
Available spring-reverb option
Baltic birch construction used in documented Mason Dixon cabinets
Standard IEC AC power connection
Designed around the Fillmore East tonal character of Duane Allman and Dickey Betts

Manufacturer documentation currently lists FE models in 10-, 15-, 22-, 44-, and 70-watt configurations, demonstrating that the Fillmore Edition designation covers a family of related hand-built amplifiers rather than a single fixed circuit. (MLA Pedals)

CABINET AUTHENTICATION

Original Construction

Construction: Original
Wood Species: Plywood — consistent with inspected construction
Dimensions: Correct / consistent with model configuration
Configuration: Extension cabinet / piggyback cabinet
Condition: Excellent

The cabinet construction is consistent with Mason Dixon's documented use of Baltic birch/plywood-type construction for Fillmore Edition cabinets. The manufacturer specifically identifies Baltic birch construction in its FE cabinet specifications. (MLA Pedals)

Authentication Finding:
VERIFIED ORIGINAL / CONSISTENT WITH FACTORY CONSTRUCTION

TOLEX / COVERING

Texture: Correct
Color: Correct
Seam Layout: Correct
Attachment: Consistent with original construction
Condition: Excellent

Authentication Finding:
ORIGINAL AND CORRECT

No evidence of replacement covering, improper re-tolexing, or materially inconsistent seam construction was identified during inspection.

GRILLE CLOTH

Grille Cloth: Original
Pattern: Correct
Grille Frame: Original
Condition: Excellent

The grille assembly is consistent with the Fillmore Edition cabinet construction.

Authentication Finding:
ORIGINAL AND CORRECT

HARDWARE

Component	Finding
Handle	Original
Corners	Original
Feet	Original
Rear / Vent Panel	Original
Screws	Original; all present
Hardware Condition	Excellent

Authentication Finding:
ORIGINAL HARDWARE PACKAGE

The hardware configuration is consistent with the cabinet's construction and shows no evidence of wholesale hardware replacement.

CONTROL PANEL

Faceplate: Original
Lettering: Original
Control Knobs: Original
Pilot Light: Original
Switches: Original
Condition: Excellent

The control-panel components exhibit the expected construction and appearance for the inspected Mason Dixon Fillmore Edition.

Authentication Finding:
ORIGINAL

SPEAKER AUTHENTICATION

Manufacturer: Peavey
Model: Black Widow
Date Code: None Present / Not Legible
Condition: Excellent

Speaker Authentication Note

The Peavey Black Widow is particularly significant in relation to the Mason Dixon Fillmore platform.

Missing Link Audio documents its Fillmore hybrid speaker as beginning with a Peavey Black Widow platform utilizing a 4-inch voice coil, subsequently reconed with JBL D120 components to achieve the desired JBL-style response. (MLA Pedals)

The inspected speaker is therefore highly relevant to the documented Mason Dixon speaker architecture.

Important qualification: No date code was identified, and the inspection information supplied does not establish whether this specific Black Widow remains in its original Peavey configuration or has received a JBL-style recone. Accordingly, this certificate does not represent the speaker as a confirmed JBL hybrid unless the speaker's cone/recone construction is separately documented.

Authentication Finding:
PEAVEY BLACK WIDOW — CONSISTENT WITH DOCUMENTED MASON DIXON SPEAKER PLATFORM

CHASSIS AUTHENTICATION

Chassis: Original
Chassis Material / Finish: Correct
Extra Holes: None present
Evidence of Modification: None identified
Chassis Condition: Excellent

The chassis construction is consistent with Mason Dixon's documented handwired Fillmore platform.

Authentication Finding:
ORIGINAL CHASSIS / NO EVIDENCE OF MODIFICATION

TRANSFORMER AUTHENTICATION

Power Transformer

Manufacturer: Hammond Manufacturing
Part Number: 290DX
Status: Original to inspected amplifier
Condition: Excellent

The Hammond 290DX is a legitimate tube-guitar-amplifier power transformer. Hammond specifies it for 120V/60Hz operation with a 650V center-tapped high-voltage secondary, 50V bias supply, 6.3V heater supply, and 5V rectifier supply. Its rated outputs include approximately 230mA on the high-voltage winding, 4A on the 6.3V winding, and 3A on the 5V winding. (Hammond Mfg.)

Authentication Finding:
ORIGINAL TO INSPECTED AMPLIFIER — NO EVIDENCE OF REPLACEMENT

Authentication Qualification

The 290DX is a modern Hammond replacement/design transformer associated by Hammond with Fender/Bassman-family applications. Public Mason Dixon documentation does not establish the 290DX as the exclusive factory transformer specification for every Fillmore Edition production run. Therefore, this certificate recognizes the transformer as original to this inspected amplifier, based upon the inspection evidence supplied, without overstating the available factory documentation.

Output Transformer

Manufacturer: Hammond Manufacturing
Part Number: 1750TB
Status: Original to inspected amplifier
Condition: Excellent

Authentication Finding:
ORIGINAL TO INSPECTED AMPLIFIER — NO EVIDENCE OF REPLACEMENT

Choke

Manufacturer: AXP
Part Number / Date Code: Not documented
Status: Original
Condition: Excellent

Authentication Finding:
ORIGINAL TO INSPECTED AMPLIFIER

ELECTRONIC COMPONENT AUTHENTICATION

Filter Capacitors

Status: Original / no evidence of non-factory replacement reported

Coupling Capacitors

Status: Original / no evidence of non-factory replacement reported

Cathode Bypass Capacitors

Status: Original / no evidence of non-factory replacement reported

Resistors

Carbon Composition: Present / consistent with construction
Carbon Film: Present / consistent with construction
Metal Film: Present / consistent with construction

Overall Electronic Component Assessment

No evidence of excessive modification
No evidence of aftermarket circuit alteration
Component population consistent with a professionally hand-built boutique tube amplifier
Condition: Excellent

Authentication Finding:
NO MATERIAL MODIFICATIONS IDENTIFIED

WIRING AUTHENTICATION

Lead Dress: Original / consistent
Solder Joints: Original / consistent
Wire Colors: Correct / consistent
Point-to-Point Construction: Consistent with documented Mason Dixon design philosophy

The Fillmore Edition is documented by the manufacturer as a handwired, point-to-point amplifier. The inspected wiring construction is consistent with that design approach. (MLA Pedals)

Authentication Finding:
ORIGINAL / CONSISTENT WITH FACTORY HAND-WIRED CONSTRUCTION

TUBE COMPLEMENT

The exact tube markings were not supplied as part of the authentication evidence.

Power Tubes

Status: Not documented in supplied inspection data

Preamp Tubes

Status: Not documented in supplied inspection data

Rectifier

Status: Not documented in supplied inspection data

Tube Shields / Retainers

Status: Not documented in supplied inspection data

Model Reference

Mason Dixon Fillmore Edition models have been produced with different tube complements according to power rating and model. The documented FE 44 platform uses a 12AX7/EF86 preamp architecture and model-specific power-tube combinations including KT66/KT77 or 6L6/6CA7 configurations. Earlier 45-watt documentation identifies a 6L6-based power section. (MLA Pedals)

Authentication Finding:
Tube originality is not independently graded in this certificate because individual tube manufacturer/type markings were not supplied.

CIRCUIT AUTHENTICATION

Construction Type: Point-to-point / handwired
Eyelet / Turret Board: Consistent with inspected construction
Circuit Layout: Consistent with Mason Dixon Fillmore design family
Factory Revision Status: No known conflicting factory revision identified
Modification Evidence: None observed

The inspected amplifier's construction is consistent with Mason Dixon's published description of its Fillmore Edition as a handwired, point-to-point design. (MLA Pedals)

Authentication Finding:
AUTHENTIC FILLMORE EDITION CIRCUIT / NO MATERIAL MODIFICATIONS IDENTIFIED

ORIGINALITY ASSESSMENT

Area	Assessment
Chassis	Original
Cabinet	Original
Tolex	Original
Grille Cloth	Original
Hardware	Original
Control Panel	Original
Speaker	Original / documented Peavey Black Widow
Power Transformer	Original to inspected unit
Output Transformer	Original to inspected unit
Choke	Original to inspected unit
Wiring	Original
Solder Work	Original / consistent
Circuit	Original / consistent
Modifications	None identified

Estimated Overall Originality

Approximately 95%+ based upon the supplied inspection evidence

This percentage is an assessment rather than a laboratory determination and should not be interpreted as a component-by-component factory serial-number match.

MODIFICATION SUMMARY

Modifications Identified: None

No evidence of:

Circuit modification
Added holes
Altered chassis
Replacement cabinet
Replacement tolex
Replacement grille assembly
Non-original control panel
Improper hardware substitution
Excessive aftermarket components
Altered lead dress
Unauthorized circuit changes

Modification Grade:
NONE IDENTIFIED

CONDITION SUMMARY

Overall Condition: EXCELLENT

Cosmetic Condition

Excellent. Cabinet covering, grille, hardware, control panel and chassis exhibit only minimal evidence of use.

Structural Condition

Excellent. Cabinet construction, hardware and chassis remain intact and appropriate to the model.

Electronic Condition

Excellent based upon the supplied inspection findings. No evidence of excessive modification or compromised construction was identified.

Originality Condition

Exceptional for a modern boutique amplifier. Major physical and electronic assemblies remain original to the inspected unit.

BLUE NOTE MUSIC ORIGINALITY CLASSIFICATION

COLLECTOR GRADE

This amplifier qualifies for Collector Grade classification because the inspected example exhibits:

Approximately 95%+ overall originality
Excellent cosmetic condition
Original cabinet
Original covering
Original grille assembly
Original hardware
Original control panel
Original speaker
Original transformers to the inspected unit
Original point-to-point wiring
No evidence of material circuit modification
No evidence of chassis alteration
Properly preserved boutique construction

Collector Grade Definition

Collector Grade represents an amplifier retaining approximately 90–98% originality, exhibiting excellent cosmetics, retaining its principal original assemblies and showing only limited service-related or routine maintenance changes where applicable.

This amplifier falls comfortably within the intended Collector Grade category.

AUTHENTICATION CONCLUSION

FULLY AUTHENTIC

Based upon the physical inspection information supplied, construction characteristics, component identification, cabinet construction, speaker configuration, transformer identification, wiring, chassis condition and comparison against available Mason Dixon / Missing Link Audio documentation, this amplifier and cabinet are determined to be:

AUTHENTIC MASON DIXON FILLMORE EDITION

The inspected example represents a highly original, exceptionally well-preserved Mason Dixon Fillmore Edition amplifier and matching cabinet.

Its handwired construction, U.S. manufacture, Fillmore East design heritage, original cabinet construction, original covering and grille assembly, Peavey Black Widow speaker platform, original-to-unit Hammond transformers, original wiring and absence of identified modifications make it a particularly strong example for a modern boutique amplifier collection.

The Mason Dixon Fillmore Edition is historically significant within the boutique amplifier market because its design directly references the legendary Fillmore East-era tones associated with Duane Allman and Dickey Betts, while employing modern hand-built construction and serviceable tube-amplifier architecture. (MLA Pedals)

CERTIFICATION STATEMENT

I certify that the above findings represent the physical condition, originality and authentication assessment of the Mason Dixon Fillmore Edition amplifier and cabinet based upon the inspection evidence available at the time of examination.

This certificate is an authentication and originality assessment, not a representation that every individual component can be independently traced to a surviving factory build record.

Where factory documentation is unavailable for a specific component, Blue Note Music has intentionally distinguished between:

“Original to the inspected amplifier”

and

“Documented factory specification.”

This distinction is maintained to preserve the accuracy and integrity of the certification.

FINAL CERTIFICATION

Manufacturer: Mason Dixon / Missing Link Audio
Model: Fillmore Edition
Estimated Year: 2024
Configuration: Piggyback Head & Cabinet
Country: USA
Condition: A — Excellent
Originality: Approximately 95%+
Grade: COLLECTOR GRADE
Authentication: FULLY AUTHENTIC
Modifications: NONE IDENTIFIED