SKU: 49638285763

VERTEX Steel String Supreme

Sale price$166.50 Regular price$185.00
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

VERTEX Steel String SupremeFeatures include Based on model #001 of an original run of legendary Dumble Steel String Singer A true amp in a box sounds great even direct into a cab simulator IR loader Inspiring touch sensitivity, warmth, and sparkle Versatile Gain and Level controls make this a capable clean boost or full on overdrive Active EQ, Bright Deep switch, and Rock Jazz switch supply plenty of tone shaping potential Rugged steel housing Authentic D style labels &

Features include

  • Based on model #001 of an original run of legendary Dumble Steel String Singer
  • A true amp in a box — sounds great even direct into a cab simulator/IR loader
  • Inspiring touch sensitivity, warmth, and sparkle
  • Versatile Gain and Level controls make this a capable clean boost or full-on overdrive
  • Active EQ, Bright/Deep switch, and Rock/Jazz switch supply plenty of tone-shaping potential
  • Rugged steel housing
  • Authentic D-style labels & aesthetics
  • True bypass on/off switching of both Steel String & Supreme channels
  • Designed & Assembled in Los Angeles, California

 

From Searing Leads to "Slow Dancing" Cleans This Is One Packed Preamp Pedal!

When it comes to the iconic cleans of songs like "Slow Dancing In A Burning Room" or the more gritty and spanky tones from the Blues greats, much of what we hear comes from a rare amplifier (Steel String Singer) designed and manufactured by a small California-based builder whose amps now fetch upwards of a quarter of a million dollars.  The Steel String Supreme is based on serial #001 of these legendary tube amps, and for those of us that want the ultimate D-style clean tone and light overdrive through a clean amp pedal platform or direct recording rig (using an cab sim or IR loader), this pedal may be a game-changer for you.  It offers all the possible tone shaping you could want in terms of EQ, compression, and overdrive, in addition to boasting a dual channel configuration that can be used separately or together for maximum control over your clean and mild overdrive tones.

Designed Alongside An Original Dumble SSS #001

The pedigree of players that have used a Steel String Singer amplifier are prolific!  Players such as Eric Johnson, Carlos Santana, John Mayer and more have all been known to use this iconic amplifier which the Steel String Supreme is based on.  Yet, you don't have to drop $200,000 or more for the price of entry to get access to the legendary tone of this 100W, 6L6-based amplifier.  The Vertex Steel String Supreme (the big brother of the Steel String MKII) offers two channels, double the EQ and voicing options, and is full-fledged pre-amp circuit available to be used with any cab simulator or IR loader as a stand along analog amplifier in a pedalboard-friendly format.

Get The Complex Cleans and Transparent Overdrive Of The Iconic D-Style Amps

With gain control below 50% the Steel String Supreme makes for an incredible clean boost with some D-style coloration.  The EQ section allows for a combo of toggle switches and knobs to voice your EQ (filter) perfectly with any amplifier pairing while still imparting that six-figure tone from the D-style amps we all know and love.  As you get above 50% on the gain control, the Steel String Supreme becomes more of an overdrive, capable of some of the more mild to mid-gain tones heard on many of the classic albums from the finest Bluesman and Rock 'N Roll guitarists.  The Steel String Supreme is 100% analog and with both channels being 100% true bypass to preserve your tone with zero alteration when disengaged.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 49638285763

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Raptor
Battle Creek, US
★★★★★ 5
Near OEM quality at 1/4 cost
Near OEM performance at 25% of the cost! Bosch Quality replaced NGKs/Toyota OEMs. Great value and now the engine is running smoothly! I have seen a slight improvement in my mpg @1mpg overall in mixed driving conditions.
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Reviewed in the United States on April 22, 2026
J
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Joe H.
Grantham, US
★★★★★ 5
Very Expensive
Had one cylinder misfiring so replaced coil and spark plug. Runs fine now, but old plug looked shot after only 5 months so I think the coil was the problem. Really good plug so far but very expensive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
R
Verified Purchase
rkab8745
Grantham, US
★★★★★ 5
A reliable set of spark plugs.
They’re made in Germany, what else can you say
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Reviewed in the United States on April 24, 2026
A
Verified Purchase
Amazon Customer
San Leandro, US
★★★★★ 5
Work as well as the NGK's
Bought for a 2016 Mazda 6, I had NGK's in it for 5 months and had misfires, didnt have the money to throw more NGK's at it for troubleshooting. Bought these to try and they work great so far.
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Reviewed in the United States on April 29, 2026
C
Verified Purchase
Christopher D. Bodirsky
Whiting, US
★★★★★ 4
Faulty plug? Otherwise great set
Definitely better than the old plugs that probably had 80k miles on them. The one star off is because I had a misfire after installing. Not sure if I damaged the plug or what, but a reinstall didn't fix the misfire. In my genius, I rushed to try to gap it and ended up breaking the iridium tip. Put the old plug into cylinder 3 (where the misfire was) and it was fine. Gonna have to get a new single tomorrow at my local shop, but a bit frustrating to get a misfire after install.
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Reviewed in the United States on April 27, 2026

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