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Black Widow Eclipse Series MGP-1A, Advanced Modelling Manual

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5

MGP-1A  Advanced Modeling Guide

Bassman

®

 “Blackface” and “Silverface” Normal Channel

Normal

Bass

Mid

Bright

Treble

Volume

Clean

UK

Vintage

US 

Vintage

Class

A

Input

Mod

EQ

Shift

Alt

EQ(+)

These Bassman amps have the same preamplifier sections as the Bandmasters from this era, complete 
with the bright switch and lack of a Mid control. The phase splitter changes to a 12AT7 and we again see 
the same changes to gain in the splitter as before. The Bassman models get a high frequency roll off in 
the power section, so they are voiced a little darker. 

Power Tubes:

 6L6GC, Push Pull

Speaker Cabinet:

 2 x 12” Jensen C12N, Oxford 12T6, or Utah Ceramic 12

Bassman

®

 20

Normal

Bass

Mid

Bright

Treble

Volume

Clean

UK

Vintage

US 

Vintage

Class

A

Input

Mod

EQ

Shift

Alt

EQ(+)

This little Bassman only had one channel, and was voiced slightly brighter. Set the Normal control to 
maximum.

Power Tubes:

 6V6GT, Push Pull

Speaker Cabinet:

 1 x 15” 

Fender

Fender

®

Bassman

®

 

(cont)

59’ Bassman

®

 Reissue

Normal

Bass

Mid

Bright

Treble

Volume

Clean

UK

Vintage

US 

Vintage

Class

A

Input

Mod

EQ

Shift

Alt

EQ(+)

Power Tubes:

 6L6GC Push Pull

Speaker Cabinet:

 4 x10” Jensen P10R

Summary of Contents for Eclipse Series MGP-1A

Page 1: ...ing Guide January 2016 MGP 1A Modeling Guitar Preamp Eclipse Series Normal Bright Crunch Drive Crunch Clean Drive UK Vintage US Vintage Class A Input Mod UK800 Mod Mod Euro Recto Hot Rod Deep Deep Bright Bright Citrus Cali Drive Crunch Black Widow Audio Designs ...

Page 2: ...P 1A Advanced Modeling Guide Contents Contents Introduction ii Bogner 1 Diezel 2 ENGL 3 Epiphone 3 Fender 4 London City 10 Marshall 10 Mesa Boogie 14 Orange 15 Soldano 17 Sovtek 17 Splawn 18 Vox 18 Yamaha 21 ...

Page 3: ...ical to the original amplifiers we are modeling so it doesn t matter how you have them set Just set them to sound good When they do have position indicators it means that those settings will give you the most authentic tone of the originals Many amplifiers use tone stacks which have only one or two controls so our three control EQ needs to be set a certain way to emulate the originals This doesn t...

Page 4: ...o the B1 setting Ecstasy Red Channel Drive Drive Mid Bass Treble Volume Mod Euro Recto Hot Rod Deep Bright EQ Shift Alt EQ Here we can use the Bright Switch to give us the tone of the B2 Pre EQ setting or off for the N Pre EQ To model the tone in the Boost off setting engage the Deep Switch and drop the Drive knob 25 or so Power Tubes EL 34 or 6L6 Push Pull Speaker Cabinet 4 x 12 V30 Fish Preamp B...

Page 5: ...bert Herbert Channel 3 Drive Drive Mid Bass Treble Volume Mod Euro Recto Hot Rod Deep Bright EQ Shift Alt EQ Power Tubes KT77 Push Pull Speaker Cabinet 4 x 12 Celestion V30 or G12K100 NOTE The Diezel Herbert has a very cool Mid Cut control which scoops the low mids for an incredibly aggressive tone Sadly we couldn t include this control However during testing it was found that one could get very c...

Page 6: ...Cabinet 4 x 12 Celestion V30 Powerball Epiphone Epiphone Galaxie 10 Galaxie 10 Normal Bass Mid Bright Treble Volume Clean UK Vintage US Vintage Class A Input Mod EQ Shift Alt EQ Use the Normal Control as Gain with Bright all the way down Power Tubes 5881 6L6 Single ended Speaker Cabinet 1 x 10 Tube 10 NOTE The prototype MGP 1A s base Euro model was the ENGL Fireball Ultra Channel While the tone wa...

Page 7: ...ol all the way up Do the opposite for the Bright switch off These amps never had a Mid control so set just over 25 for authenticity Power Section 6L6GC Push Pull Speaker Cabinet 2 x 12 Jensen C12Q or Oxford 12M6 NOTE Aside from the bright switch there is no difference in the preamp section between the Bandmaster models The biggest change was the Blackface and Silverface models began using a 12AT7 ...

Page 8: ...get a high frequency roll off in the power section so they are voiced a little darker Power Tubes 6L6GC Push Pull Speaker Cabinet 2 x 12 Jensen C12N Oxford 12T6 or Utah Ceramic 12 Bassman 20 Normal Bass Mid Bright Treble Volume Clean UK Vintage US Vintage Class A Input Mod EQ Shift Alt EQ This little Bassman only had one channel and was voiced slightly brighter Set the Normal control to maximum Po...

Page 9: ...Mod EQ Shift Alt EQ If you don t have access to a 8 driver or IR turn Alt EQ on and use a single 10 or 12 driver model Power Tubes 6V6GT Single ended Speaker Cabinet 1 x 6 Fender Fender Champ 12 Overdrive Off Normal Bass Mid Bright Treble Volume Clean UK Vintage US Vintage Class A Input Mod EQ Shift Alt EQ This Champ model has a lot more going on with it s full EQ and an Overdrive Channel Turning ...

Page 10: ...ol to about 2 or so Now dropping the Mid control from 10 will act as the cut portion The drawback is that this will also cut the volume so you may need to adjust it as well However there are some really good tones here so it s worth the effort Power Tubes 6V6GT Push Pull Speaker Cabinet 1 x 12 Jensen P12R Fender Fender Deluxe Normal Channel Normal Bass Mid Bright Treble Volume Clean UK Vintage US ...

Page 11: ...reble Volume Clean UK Vintage US Vintage Class A Input Mod EQ Shift Alt EQ The Brownface Princeton has the same preamplifier as the 5F2 A but switches to a push pull power amplifier design and a 10 speaker Power Tubes 6V6GT Push Pull Speaker Cabinet 1 x 10 Jensen C10R or Oxford 10J4 Blackface Princeton The Blackface Princeton uses the same preamp as the Brownface model with the Tone control swappe...

Page 12: ...sh Pull Speaker Cabinet 1 x 12 JBL D 120F or 1 x 15 JBL D 130F Twin Late Tweed Era Twin Normal Bass Mid Bright Treble Volume Clean UK Vintage US Vintage Class A Input Mod EQ Shift Alt EQ The late Tweed Era Twins were dual input amplifiers so there s no wrong setting of the Input Switch and Bright and Normal gain controls This amp also has a full Vintage Fender 3 band tone stack so those controls d...

Page 13: ...ut had a modified tone stack in addition to the second pair of EL34s Turn on EQ Shift for the tone of the DEA 100 Power Tubes EL34 Push Pull Speaker Cabinet 4 x 12 Celestion G12M DEA Series MKV Marshall Marshall JTM45 Bluesbreaker Model 1962 Normal Bass Mid Bright Treble Volume Clean UK Vintage US Vintage Class A Input Mod EQ Shift Alt EQ Power Tubes KT66 Push Pull Speaker Cabinet 2 x 12 Celestion...

Page 14: ...sions depending on era and region came equipped with KT66 EL34 or 6550 output tubes Power Tubes KT66 EL34 or 6550 Push Pull Speaker Cabinet 4 x 12 Celestion AlNiCo G12 or Greenback Normal Bass Mid Bright Treble Volume Clean UK Vintage US Vintage Class A Input Mod EQ Shift Alt EQ Crunch UK800 Mod Deep Bright EQ Shift Alt EQ Citrus Cali Crunch Mid Bass Treble Volume JCM800 JCM800 Model 2203 2204 Hi ...

Page 15: ...estack so the treble control gets into the mids more Use the EQ Shift for the same effect Power Tubes EL34 or 6550 Push Pull Speaker Cabinet 4 x 12 Celestion G12T 75 1960 V30 1960V G12 80 or G12H 100 1982x Crunch UK800 Mod Deep Bright EQ Shift Alt EQ Citrus Cali Crunch Mid Bass Treble Volume JCM800 Model 2205 Boost Channel This amp has much more distortion than the classic JCM800 circuit but it do...

Page 16: ... heavy distortion tones all from a single channel This MGP 1A model is primarily concerned with emulating the SL X s heavier tones Try the UK800 model for crunch and clean tones The SL X is capable of a spectrum of heavier tones depending on the settings of the two controls The MGP 1A only has one Drive control however it is possible to accurately simulate this behavior Here s how To simulate the ...

Page 17: ...d Switch conjures the tone of the Mark IV s Rhythm 2 Channel There s a lot of gain here enough to actually get some great metal tones You still have the Bright Switch the Deep Switch Mid Shift and the EQ Shift Treble Shift for a ton of tone shaping abilities Power Tubes 6L6GC or EL34 Push Pull Speaker Cabinet 1 x 12 MC90 or EVM12L Openback 4 x 12 MC90 or EVM12L Rectifier Series Early 2 Channel Dual...

Page 18: ...ween the Single Dual and Triple Rectifiers is in the number of power tubes and the rectifier combinations The Single Rectifier has a single pair of 6L6GC or EL34 power tubes the Dual Rectifier has two pairs and the Triple Rectifier has yep you guessed it three pairs Drive Drive Mid Bass Treble Volume Mod Euro Recto Hot Rod Deep Bright EQ Shift Alt EQ Rectifier Series AD Series AD 15 These modern re...

Page 19: ...f the F A C at 3 with the Bright switch off and 5 with the Bright switch on Power Tubes EL 34 Push Pull Speaker Cabinet 2 x 12 or 4 x 12 oversized cabinet with Celestion Greenbacks Crunch UK800 Mod Deep Bright EQ Shift Alt EQ Citrus Cali Crunch Mid Bass Treble Volume AD 30 Power Tubes Cathode Biased EL 84 Push Pull Speaker Cabinet 2 x 12 Celestion V30 Normal Bass Mid Bright Treble Volume Clean UK ...

Page 20: ...Speaker Cabinet 4 x 12 Eminence V1216 Drive Drive Mid Bass Treble Volume Mod Euro Recto Hot Rod Deep Bright EQ Shift Alt EQ Super Lead Overdrive NOTE Many of the Soldano amplifiers use the same circuit so those tones are available as well For instance the X 99 Preamp Decatone and Hot Rod 50 100 amps use the X 88R setting with the Bright switch off Sovtek Sovtek Mig Series Mig 50 The Mig 50 is a ne...

Page 21: ...h this model AC 30 AC 30 This is based on the original model without the top boost modification These triple input amplifiers Brilliant Normal and Vibrato didn t have a tone stack so for the most authentic tone set the Bass and Treble to 0 and Mid to 10 NOTE The very first AC 30 s used 2 x EL34s but were quickly switched to 4 x EL 84 power tubes To get the tone of the first AC 30 s don t be afraid...

Page 22: ...Clean UK Vintage US Vintage Class A Input Mod EQ Shift Alt EQ NOTE You can get some of the AC 120 tones with the Harmonic Equalization and Distortion off by using the AC 30 Top Boost Model with Alt EQ engaged The original used EL34 power tubes and 2 x 12 MacKenzie drivers Vox Vox AC 30 cont Y amaha Y amaha T Series T 50 T 100 Overdrive Channel This amplifier wasn t a copy of the SLO 100 it was des...

Page 23: ...Black Widow Audio Designs Eclipse Series MGP 1A Modeling Guitar Preamp Advanced Modeling Guide January 2016 ...

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