Dr Z. Amplifiers - Pricing and Tube Compliment
Last updated 09 JAN 2006
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On amps that are underlined below, you may click on the amp name,
and be transported directly to that particular page on the Dr. Z website
for the "official" info on the amps. Just use your browser back arrow to
come back to this page if you wish.
and be transported directly to that particular page on the Dr. Z website
for the "official" info on the amps. Just use your browser back arrow to
come back to this page if you wish.
Below are some of the tube compliments of the Z amps. Ignore the
pricing below.
For current pricing CLICK HERE
pricing below.
For current pricing CLICK HERE
Tube assignments
Some tube notes that may be of help:
Dr. Z amps are shipped in many cases with Groove Tubes in some areas of the amplifiers. In the case of
power tubes, Dr. Z recommends ratings of 5-6 on the GT scale.
Dr. Z also selects specific types of tubes in the front ends in some cases. These are noted with the GT
(Groove Tubes) part number, but I will also show other names that the tube may be known by.
On amps that are underlined, you may click on the amp name, and be transported directly to that
particular page on the Dr. Z website for the "official" info on the amps. Just use your browser back
arrow to come back to this page if you want to do that.
Carmen Ghia Head: $ 949
Carmen Ghia 2x10 combo: new! $1249
Carmen Ghia 1x12 combo: new! $1249
V1 GT-ECC83S (JJ ECC83S)
V2 5751
One duet (2) GT-EL84S #6 (JJ EL-84)
5Y3 Rectifier
MAZ-18 Jr. Head: $1299
MAZ-18 Jr. 1x12 Combo: $1549
MAZ-18 Jr. 2x10 Combo: $1549
MAZ-18 Jr. 2x12 Combo: $1699
V1 GT-ECC83S (JJ ECC83S)
V2 GT-ECC83S (JJ ECC83S)
V3 GT-GT12AT7C (12AT7 Chinese low noise 9th generation)
V4 GT-12AX7R (Sovtek 12AX7WA or any good and quiet 12AX7)
V5 GT-12AX7R2 (Sovtek 12AX7LPS)
One duet (2) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
MAZ-18 Jr. "NR" (non-reverb) Head $1149
MAZ-18 Jr. "NR" 1x12 Combo: $1349
MAZ-18 Jr. "NR" 2x10 Combo: $1349
MAZ-18 Jr. "NR" 2x12 Combo: $1649
V1 GT-ECC83S (JJ ECC83S)
V2 GT-ECC83S (JJ ECC83S)
V3 GT-12AX7R2 (Sovtek 12AX7LPS)
One duet (2) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
MAZ-38 Sr. Head: $1499
MAZ-38 Sr. 1x12 Combo: $1699
MAZ-38 Sr. 2x12 Combo: $1899
MAZ-38 Sr. 2x10 Combo: new! $1699
V1 GT-ECC83S (JJ ECC83S)
V2 GT-ECC83S (JJ ECC83S)
V3 GT-GT12AT7C (12AT7 Chinese low noise 9th generation)
V4 GT-12AX7R (Sovtek 12AX7WA or any good and quiet 12AX7)
V5 GT-12AX7R2 (Sovtek 12AX7LPS) or GT-12AT7 NOS (12AT7 will yield more clean headroom - 12AX7 will yield more gain)
One quartet (4) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
MAZ-38 Sr. "NR" (non-reverb) Head: $1299
MAZ-38 Sr. "NR" 1x12 Combo: $1499
MAZ-38 Sr. "NR" 2x12 Combo: $1749
MAZ-38 Sr. "NR" 2x10 Combo: $1499
MAZ-38 Sr. "NR" 3x10 combo ("Super Z") new!: $1699
V1 GT-ECC83S (JJ ECC83S)
V2 GT-ECC83S (JJ ECC83S)
V3 GT-12AX7R2 (Sovtek 12AX7LPS) or GT-12AT7 NOS (12AT7 will yield more clean headroom - 12AX7 will yield more gain)
One quartet (4) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
Mazerati Head: $1249
Mazerati 1x12 Combo: $1499
Mazerati 2x10 Combo: $1499
Mazerati 2x12 Combo: (Paisley's Fave!) $1699
V1 GT-ECC83S (JJ ECC83S)
V2 5751
One quartet (4) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
Stingray
V1 - EF86, V2 (12AX7/ECC83), Output tubes - 1 matched quad GT-EL84S #5 or #6, GZ34/5AR4 Rectifier
Prescription Head $1399
Prescription 2x12 Combo $1799
V1 GT-ECC83S (JJ ECC83S)
V2 GT-12AX7C (9th generation Shuguang tooling 12AX7. Warm, linear, very quiet)
V3 GT-12AX7C (9th generation Shuguang tooling 12AX7. Warm, linear, very quiet)
One quartet (4) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
Prescription Head Extra Strength $ 1499
Prescription 2x12 Combo Extra Strength $ 1899
V1 GT-12AX7M
V2 EF86 / 6267
V3 GT-12AX7M
One quartet (4) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
About a half a dozen of these have been built. The expected release date is in July 2004.
DELTA 88 - $1599.00
V1 EF86 / 6267
V2 12AX7LPS (GT-12AX7R2) or GT-12AX7M (see the Delta 88 page HERE to learn Dr. Z's thoughts on this choice)
One Duet of #5 or #6 GT-KT88SV biased at 28-30mA. I know this will seem low but see the Delta 88 page from the link to learn the
story.
Mini Z - $699 I think?
V1 - 12AX7 / ECC83
V2 - a single EL84
Z-28 Head: new! $1199
Z-28 4x10 combo: new! $1599
Z-28 2x10 combo: new! $1399
Z-28 1x12 combo: new! $1399
V1 EF86 Pentode (also known as 6267)
V2 GT-12AX7R2 (Sovtek 12AX7LPS) or 5751 (may be swapped - 12AX7 will be more aggressive)
One duet (2) GT-6V6R (Electro Harmonix 6V6EH)*
5AR4 Rectifier
*These tubes (the Electro Harmonix / GT-6V6R) handle very high voltages for a 6V6 type tube. The Z28 does not operate at very
high voltages compared to some modern 6V6 amps, but the amp was designed around this great sounding EH produced tube.
Personally, I also have heard many types of NOS 6V6 tubes in this amp with great results. This amp sounds pretty spectacular
with any 6V6.
Route 66 Head: $1499
V1 EF86 Pentode (also known as 6267)
V2 GT-12AX7R2 (Sovtek 12AX7LPS)
One duet (2) GT-KT66HP #5 - #6 *
5AR4 (GZ34) Rectifier
*These are only available from Groove Tubes as they are GT's tooling and design. The Chinese KT66 tubes from Sino do not have
the same GEC response curve as the HP.
KT-45 Head: $1499
V1 EF86 Pentode (also known as 6267)
V2 GT-12AX7R2 (Sovtek 12AX7LPS)
One duet (2) GT-E34LS #5 - #6 *
5AR4 (GZ34) Rectifier
*These are only available from Groove Tubes as they are GT's tooling and design. These are from the JJ factory, but off GT
developed tooling. They have more plate mass than other EL34 tubes, including the JJ E34L. Visually they are identified by heat
sink wings on the plate assembly. These are 30 watt tubes. All other EL34 and E34L tubes are 25 watt tubes.
NOTE: IT HAS BEEN MY PERSONAL EXPERIENCE THAT STAYING WITH THE FACTORY BIAS SETTINGS YIELD THE BEST RESULTS. THESE AMP ARE
BIASED AT THE FACTORY FOR AROUND 28 MILLIAMPS. IF YOU DO THE MATH ON THESE AMPS AT THEIR PLATE VOLTAGE, AND TAKE INTO
ACCOUNT THE 30 WATT EL34 RATHER THAN A 25 WATT EL34 TUBE, YOU MAY FIND THAT THE AMP SEEMS TO BE OVERBIASED AND WOULD RUN
TOO COLD. I DO NOT RECOMMEND RUNNING THE AMP HOTTER VIA A BIAS ADJUSTMENT. WHAT HAPPENS IN THAT CASE IS THE AMP LOOSES TOO
MUCH CROSSOVER NOTCH DISTORTION. THIS IS ALSO A COMMON SIDE EFFECT IN MARSHALL AMPS SET TO HIGH IN IDLE CURRENT. PART OF
THE CRUNCH IN THIS AMP, IN HIWATT AMPS, AND MARSHALL AMPS IS THE CROSSOVER NOTCH DISTORTION. THE KT-45 HAS VERY HIGH CLEAN
HEADROOM. RUNNING THE IDLE HIGHER JUST RAISES THIS, WEARS TUBES MUCH FASTER, AND MAKES AMPS HARSH AT SOME SETTINGS. I
ALSO RECOMMEND ON THE Z28 AND ROUTE 66, STAYING WITHIN THE FACTORY BIAS SETTINGS. IF YOU REPLACE OUTPUT TUBES WITH THE SAME
TUBE TYPE AND THE SAME RATING, A BIAS IS NOT NECESSARY WHEN USING GROOVE TUBES REPLACEMENTS IF THIS IS WHAT WAS SUPPILED IN
THE AMP FROM THE FACTORY.
SRZ-65 Head new! $1599
V1 GT-ECC83S (JJ ECC83S)
V2 GT-ECC83S (JJ ECC83S)
V3 GT-ECC83S (JJ ECC83S)
One duet (2) GT-E34LS #5 - #6 *
5AR4 (GZ34) Rectifier
*These are only available from Groove Tubes as they are GT's tooling and design. These are from the JJ factory, but off GT
developed tooling. They have more plate mass than other EL34 tubes, including the JJ E34L. Visually they are identified by heat
sink wings on the plate assembly. These are 30 watt tubes. All other EL34 and E34L tubes are 25 watt tubes.
6545 Channel Switching Head $1799
V1 GT-ECC83S (JJ ECC83S)
V2 GT-ECC83S (JJ ECC83S)
V3 EF86 Pentode (also known as 6267)
V4 GT-12AX7R2 (Sovtek 12AX7LPS)
One duet (2) GT-E34LS #5 - #6 These are only available from Groove Tubes as they are GT's tooling and design. These are from
the JJ factory, but off GT developed tooling. They have more plate mass than other EL34 tubes, including the JJ E34L. Visually
they are identified by heat sink wings on the plate assembly. These are 30 watt tubes. All other EL34 and E34L tubes are 25 watt
tubes.
5AR4 (GZ34) Rectifier or Solid State plug in rectifier. When changing to a solid state rectifier if not stock in the amp, please
check and ajust the bias as there will be higher B+ (plate) voltage.
"Super Z" 3x10 combo: new! $1699 - This is the MAZ 38 Senior Non-Reverb in a 3x10 configuration
V1 GT-ECC83S (JJ ECC83S)
V2 GT-ECC83S (JJ ECC83S)
V3 GT-12AX7R2 (Sovtek 12AX7LPS)
One quad (4) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
Mini-Z 1x8 Combo $699
Dr Z Cabinets and Options
1-12 open back Cabinet: $ 449
2-12 "Z-Best" Thiele Ported Cabinet: $ 749
2-10 speaker cabinet $ 449
2-12 Open Back Cabinet $699
Hardwood fronts $175 and up
Celestion Alnico "Blue Bell" upcharge (per speaker) $ 210
Effects Loop $ 90
Adjustable Direct Out $ 90
Z Air Brake new! $275
Some tube notes that may be of help:
Dr. Z amps are shipped in many cases with Groove Tubes in some areas of the amplifiers. In the case of
power tubes, Dr. Z recommends ratings of 5-6 on the GT scale.
Dr. Z also selects specific types of tubes in the front ends in some cases. These are noted with the GT
(Groove Tubes) part number, but I will also show other names that the tube may be known by.
On amps that are underlined, you may click on the amp name, and be transported directly to that
particular page on the Dr. Z website for the "official" info on the amps. Just use your browser back
arrow to come back to this page if you want to do that.
Carmen Ghia Head: $ 949
Carmen Ghia 2x10 combo: new! $1249
Carmen Ghia 1x12 combo: new! $1249
V1 GT-ECC83S (JJ ECC83S)
V2 5751
One duet (2) GT-EL84S #6 (JJ EL-84)
5Y3 Rectifier
MAZ-18 Jr. Head: $1299
MAZ-18 Jr. 1x12 Combo: $1549
MAZ-18 Jr. 2x10 Combo: $1549
MAZ-18 Jr. 2x12 Combo: $1699
V1 GT-ECC83S (JJ ECC83S)
V2 GT-ECC83S (JJ ECC83S)
V3 GT-GT12AT7C (12AT7 Chinese low noise 9th generation)
V4 GT-12AX7R (Sovtek 12AX7WA or any good and quiet 12AX7)
V5 GT-12AX7R2 (Sovtek 12AX7LPS)
One duet (2) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
MAZ-18 Jr. "NR" (non-reverb) Head $1149
MAZ-18 Jr. "NR" 1x12 Combo: $1349
MAZ-18 Jr. "NR" 2x10 Combo: $1349
MAZ-18 Jr. "NR" 2x12 Combo: $1649
V1 GT-ECC83S (JJ ECC83S)
V2 GT-ECC83S (JJ ECC83S)
V3 GT-12AX7R2 (Sovtek 12AX7LPS)
One duet (2) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
MAZ-38 Sr. Head: $1499
MAZ-38 Sr. 1x12 Combo: $1699
MAZ-38 Sr. 2x12 Combo: $1899
MAZ-38 Sr. 2x10 Combo: new! $1699
V1 GT-ECC83S (JJ ECC83S)
V2 GT-ECC83S (JJ ECC83S)
V3 GT-GT12AT7C (12AT7 Chinese low noise 9th generation)
V4 GT-12AX7R (Sovtek 12AX7WA or any good and quiet 12AX7)
V5 GT-12AX7R2 (Sovtek 12AX7LPS) or GT-12AT7 NOS (12AT7 will yield more clean headroom - 12AX7 will yield more gain)
One quartet (4) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
MAZ-38 Sr. "NR" (non-reverb) Head: $1299
MAZ-38 Sr. "NR" 1x12 Combo: $1499
MAZ-38 Sr. "NR" 2x12 Combo: $1749
MAZ-38 Sr. "NR" 2x10 Combo: $1499
MAZ-38 Sr. "NR" 3x10 combo ("Super Z") new!: $1699
V1 GT-ECC83S (JJ ECC83S)
V2 GT-ECC83S (JJ ECC83S)
V3 GT-12AX7R2 (Sovtek 12AX7LPS) or GT-12AT7 NOS (12AT7 will yield more clean headroom - 12AX7 will yield more gain)
One quartet (4) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
Mazerati Head: $1249
Mazerati 1x12 Combo: $1499
Mazerati 2x10 Combo: $1499
Mazerati 2x12 Combo: (Paisley's Fave!) $1699
V1 GT-ECC83S (JJ ECC83S)
V2 5751
One quartet (4) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
Stingray
V1 - EF86, V2 (12AX7/ECC83), Output tubes - 1 matched quad GT-EL84S #5 or #6, GZ34/5AR4 Rectifier
Prescription Head $1399
Prescription 2x12 Combo $1799
V1 GT-ECC83S (JJ ECC83S)
V2 GT-12AX7C (9th generation Shuguang tooling 12AX7. Warm, linear, very quiet)
V3 GT-12AX7C (9th generation Shuguang tooling 12AX7. Warm, linear, very quiet)
One quartet (4) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
Prescription Head Extra Strength $ 1499
Prescription 2x12 Combo Extra Strength $ 1899
V1 GT-12AX7M
V2 EF86 / 6267
V3 GT-12AX7M
One quartet (4) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
About a half a dozen of these have been built. The expected release date is in July 2004.
DELTA 88 - $1599.00
V1 EF86 / 6267
V2 12AX7LPS (GT-12AX7R2) or GT-12AX7M (see the Delta 88 page HERE to learn Dr. Z's thoughts on this choice)
One Duet of #5 or #6 GT-KT88SV biased at 28-30mA. I know this will seem low but see the Delta 88 page from the link to learn the
story.
Mini Z - $699 I think?
V1 - 12AX7 / ECC83
V2 - a single EL84
Z-28 Head: new! $1199
Z-28 4x10 combo: new! $1599
Z-28 2x10 combo: new! $1399
Z-28 1x12 combo: new! $1399
V1 EF86 Pentode (also known as 6267)
V2 GT-12AX7R2 (Sovtek 12AX7LPS) or 5751 (may be swapped - 12AX7 will be more aggressive)
One duet (2) GT-6V6R (Electro Harmonix 6V6EH)*
5AR4 Rectifier
*These tubes (the Electro Harmonix / GT-6V6R) handle very high voltages for a 6V6 type tube. The Z28 does not operate at very
high voltages compared to some modern 6V6 amps, but the amp was designed around this great sounding EH produced tube.
Personally, I also have heard many types of NOS 6V6 tubes in this amp with great results. This amp sounds pretty spectacular
with any 6V6.
Route 66 Head: $1499
V1 EF86 Pentode (also known as 6267)
V2 GT-12AX7R2 (Sovtek 12AX7LPS)
One duet (2) GT-KT66HP #5 - #6 *
5AR4 (GZ34) Rectifier
*These are only available from Groove Tubes as they are GT's tooling and design. The Chinese KT66 tubes from Sino do not have
the same GEC response curve as the HP.
KT-45 Head: $1499
V1 EF86 Pentode (also known as 6267)
V2 GT-12AX7R2 (Sovtek 12AX7LPS)
One duet (2) GT-E34LS #5 - #6 *
5AR4 (GZ34) Rectifier
*These are only available from Groove Tubes as they are GT's tooling and design. These are from the JJ factory, but off GT
developed tooling. They have more plate mass than other EL34 tubes, including the JJ E34L. Visually they are identified by heat
sink wings on the plate assembly. These are 30 watt tubes. All other EL34 and E34L tubes are 25 watt tubes.
NOTE: IT HAS BEEN MY PERSONAL EXPERIENCE THAT STAYING WITH THE FACTORY BIAS SETTINGS YIELD THE BEST RESULTS. THESE AMP ARE
BIASED AT THE FACTORY FOR AROUND 28 MILLIAMPS. IF YOU DO THE MATH ON THESE AMPS AT THEIR PLATE VOLTAGE, AND TAKE INTO
ACCOUNT THE 30 WATT EL34 RATHER THAN A 25 WATT EL34 TUBE, YOU MAY FIND THAT THE AMP SEEMS TO BE OVERBIASED AND WOULD RUN
TOO COLD. I DO NOT RECOMMEND RUNNING THE AMP HOTTER VIA A BIAS ADJUSTMENT. WHAT HAPPENS IN THAT CASE IS THE AMP LOOSES TOO
MUCH CROSSOVER NOTCH DISTORTION. THIS IS ALSO A COMMON SIDE EFFECT IN MARSHALL AMPS SET TO HIGH IN IDLE CURRENT. PART OF
THE CRUNCH IN THIS AMP, IN HIWATT AMPS, AND MARSHALL AMPS IS THE CROSSOVER NOTCH DISTORTION. THE KT-45 HAS VERY HIGH CLEAN
HEADROOM. RUNNING THE IDLE HIGHER JUST RAISES THIS, WEARS TUBES MUCH FASTER, AND MAKES AMPS HARSH AT SOME SETTINGS. I
ALSO RECOMMEND ON THE Z28 AND ROUTE 66, STAYING WITHIN THE FACTORY BIAS SETTINGS. IF YOU REPLACE OUTPUT TUBES WITH THE SAME
TUBE TYPE AND THE SAME RATING, A BIAS IS NOT NECESSARY WHEN USING GROOVE TUBES REPLACEMENTS IF THIS IS WHAT WAS SUPPILED IN
THE AMP FROM THE FACTORY.
SRZ-65 Head new! $1599
V1 GT-ECC83S (JJ ECC83S)
V2 GT-ECC83S (JJ ECC83S)
V3 GT-ECC83S (JJ ECC83S)
One duet (2) GT-E34LS #5 - #6 *
5AR4 (GZ34) Rectifier
*These are only available from Groove Tubes as they are GT's tooling and design. These are from the JJ factory, but off GT
developed tooling. They have more plate mass than other EL34 tubes, including the JJ E34L. Visually they are identified by heat
sink wings on the plate assembly. These are 30 watt tubes. All other EL34 and E34L tubes are 25 watt tubes.
6545 Channel Switching Head $1799
V1 GT-ECC83S (JJ ECC83S)
V2 GT-ECC83S (JJ ECC83S)
V3 EF86 Pentode (also known as 6267)
V4 GT-12AX7R2 (Sovtek 12AX7LPS)
One duet (2) GT-E34LS #5 - #6 These are only available from Groove Tubes as they are GT's tooling and design. These are from
the JJ factory, but off GT developed tooling. They have more plate mass than other EL34 tubes, including the JJ E34L. Visually
they are identified by heat sink wings on the plate assembly. These are 30 watt tubes. All other EL34 and E34L tubes are 25 watt
tubes.
5AR4 (GZ34) Rectifier or Solid State plug in rectifier. When changing to a solid state rectifier if not stock in the amp, please
check and ajust the bias as there will be higher B+ (plate) voltage.
"Super Z" 3x10 combo: new! $1699 - This is the MAZ 38 Senior Non-Reverb in a 3x10 configuration
V1 GT-ECC83S (JJ ECC83S)
V2 GT-ECC83S (JJ ECC83S)
V3 GT-12AX7R2 (Sovtek 12AX7LPS)
One quad (4) GT-EL84S #6 (JJ EL-84)
5AR4 (GZ34) Rectifier
Mini-Z 1x8 Combo $699
Dr Z Cabinets and Options
1-12 open back Cabinet: $ 449
2-12 "Z-Best" Thiele Ported Cabinet: $ 749
2-10 speaker cabinet $ 449
2-12 Open Back Cabinet $699
Hardwood fronts $175 and up
Celestion Alnico "Blue Bell" upcharge (per speaker) $ 210
Effects Loop $ 90
Adjustable Direct Out $ 90
Z Air Brake new! $275
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