NEW MGL AmpWorks Lead Master Series Single Channel "1981-2204" 50w Amp

$2,800.00

NEW MGL AmpWorks Lead Master Series single channel “1981-2204” 50w amp head built on our new chassis layout that pays tribute to the classic 2204. The “1981-2204” is sonically dead on to my original 1981 Marshall JMP 50w master volume head that I’ve owned for over 30 years. Many customers over the years and myself think this is the best sounding original example they’ve heard. We’ve matched all the components in values and tones along with accurate voltages throughout the amp circuit. So, a faithful 2204 circuit with some modern added features. Front panel: The first mini switch to the right of the Master volume is for Gain Level, in the down (VIN) position you get the stock gain of a stock 2204, and in the up (MOD) position you get some added gain, 2nd mini switch to the right is a 3-way bright switch, down is the stock value bright cap, in the middle there is no bright cap and with the switch up it’s a value at about half way. Back panel includes a “Zero Loss” effects loop w/ true bypass switch, 2nd switch in the up position will engage a Jose style diode clipping Saturation circuit and last switch to the right is the Voicing switch that we use on all of our amps, in the Vintage position you get a warmer, sweeter and more compressed tone and in the modern position you get a tighter, brighter & more aggressive tone. These amps come stock in a custom Swanson Cabinets 26” late ‘70’s JMP style head cab as seen in the pictures, 26” or 24” Plexi style head cab is also an option at no up-charge, and as always we offer many tolex colors available at no up-charge (unlike the big companies that get $200.00 just for a custom color!!) These amps use a lower voltage power transformer like the late ‘70’s thru ‘81 Marshall 2204’s which makes for a warmer, fatter and more woody tone. We can also use our higher voltage 100w power transformer for a tighter, faster and more aggressive tone to match the higher voltage change that Marshall made in 1982.

30 day circuit change offer:

After you purchase one of our 2204 circuit based amps, “1981-2204”, Purple Circuit or Red Circuit, you can play it for 30 days and if for any reason you feel that you should have chosen one of the other 2 circuits, we will change the circuit in your amp for free. You will be responsible for the shipping both ways. This is a one time only offer.BUILD SPECS: 

  • Custom.090" aluminum chassis w/ welded corners, gloss black powder coating and screened with metallic gold ink for the text

  • Dagnall MGL spec lower voltage power transformer, higher voltage Heyboer power transformer is a $25.00 up-charge

  • MGL custom Heyboer 784-139 output transformer & filter choke 

  • Mallory M150 capacitors used throughout the circuit 

  • Belton power tube sockets

  • Belton preamp tube sockets w/ tube shields

  • 18 AWG mil spec Teflon insulated wire

  • 1 watt carbon film resistors

  • Real UK Cliff jacks

  • Brass shaft CTS pots

  • ARS filter caps

  • Metropoulos “Zero Loss” effects loop w/ true bypass switch

  • 3 NOS square foil getter Chinese 12AX7 preamp tubes

  • Matched pair of EH EL34 power tubes, NOS RFT Siemens EL34 power tubes at a $150.00 up-charge

  • Swanson Cabinets large box, 29” JMP or Plexi style head cab is available at a $100.00 up-charge

  • Customer Amp Build Info

    We only build to order and make around 30-50 amps a year. So each amp is built one at a time for each customer. When the amp build starts we order your head cab and or speaker cab with Swanson Cabinets who also builds to order. This allows you choices in the style and looks of the cab so you get what you want. Each amp is like a one-off Custom Shop build. To order an amp and reserve a build spot, we get a $500.00 non-refundable deposit. We try to stick to very accurate estimated build times and never take more deposits for more amps than we can build in a reasonable time frame of 2-8 weeks.

  • 3% Discount for Check or Wire

    Inquire About This Item or Call 603-868-9805

    Video demos available here on this site or visit our YouTube Page

    (The video demos were done with the older version of the amp, so it looks different, but the circuit and sound is the same)

NEW MGL AmpWorks Lead Master Series single channel “1981-2204” 50w amp head built on our new chassis layout that pays tribute to the classic 2204. The “1981-2204” is sonically dead on to my original 1981 Marshall JMP 50w master volume head that I’ve owned for over 30 years. Many customers over the years and myself think this is the best sounding original example they’ve heard. We’ve matched all the components in values and tones along with accurate voltages throughout the amp circuit. So, a faithful 2204 circuit with some modern added features. Front panel: The first mini switch to the right of the Master volume is for Gain Level, in the down (VIN) position you get the stock gain of a stock 2204, and in the up (MOD) position you get some added gain, 2nd mini switch to the right is a 3-way bright switch, down is the stock value bright cap, in the middle there is no bright cap and with the switch up it’s a value at about half way. Back panel includes a “Zero Loss” effects loop w/ true bypass switch, 2nd switch in the up position will engage a Jose style diode clipping Saturation circuit and last switch to the right is the Voicing switch that we use on all of our amps, in the Vintage position you get a warmer, sweeter and more compressed tone and in the modern position you get a tighter, brighter & more aggressive tone. These amps come stock in a custom Swanson Cabinets 26” late ‘70’s JMP style head cab as seen in the pictures, 26” or 24” Plexi style head cab is also an option at no up-charge, and as always we offer many tolex colors available at no up-charge (unlike the big companies that get $200.00 just for a custom color!!) These amps use a lower voltage power transformer like the late ‘70’s thru ‘81 Marshall 2204’s which makes for a warmer, fatter and more woody tone. We can also use our higher voltage 100w power transformer for a tighter, faster and more aggressive tone to match the higher voltage change that Marshall made in 1982.

30 day circuit change offer:

After you purchase one of our 2204 circuit based amps, “1981-2204”, Purple Circuit or Red Circuit, you can play it for 30 days and if for any reason you feel that you should have chosen one of the other 2 circuits, we will change the circuit in your amp for free. You will be responsible for the shipping both ways. This is a one time only offer.BUILD SPECS: 

  • Custom.090" aluminum chassis w/ welded corners, gloss black powder coating and screened with metallic gold ink for the text

  • Dagnall MGL spec lower voltage power transformer, higher voltage Heyboer power transformer is a $25.00 up-charge

  • MGL custom Heyboer 784-139 output transformer & filter choke 

  • Mallory M150 capacitors used throughout the circuit 

  • Belton power tube sockets

  • Belton preamp tube sockets w/ tube shields

  • 18 AWG mil spec Teflon insulated wire

  • 1 watt carbon film resistors

  • Real UK Cliff jacks

  • Brass shaft CTS pots

  • ARS filter caps

  • Metropoulos “Zero Loss” effects loop w/ true bypass switch

  • 3 NOS square foil getter Chinese 12AX7 preamp tubes

  • Matched pair of EH EL34 power tubes, NOS RFT Siemens EL34 power tubes at a $150.00 up-charge

  • Swanson Cabinets large box, 29” JMP or Plexi style head cab is available at a $100.00 up-charge

  • Customer Amp Build Info

    We only build to order and make around 30-50 amps a year. So each amp is built one at a time for each customer. When the amp build starts we order your head cab and or speaker cab with Swanson Cabinets who also builds to order. This allows you choices in the style and looks of the cab so you get what you want. Each amp is like a one-off Custom Shop build. To order an amp and reserve a build spot, we get a $500.00 non-refundable deposit. We try to stick to very accurate estimated build times and never take more deposits for more amps than we can build in a reasonable time frame of 2-8 weeks.

  • 3% Discount for Check or Wire

    Inquire About This Item or Call 603-868-9805

    Video demos available here on this site or visit our YouTube Page

    (The video demos were done with the older version of the amp, so it looks different, but the circuit and sound is the same)