creamy overdrive pedal TWA RZ-01 CHEMICAL Z Purple Gloss 2024
SKU: 97964407917
creamy overdrive pedal

creamy overdrive pedal TWA RZ-01 CHEMICAL Z Purple Gloss 2024

Sale price$20.63 Regular price$22.92
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Description

creamy overdrive pedal TWA RZ-01 CHEMICAL Z Purple Gloss 2024Order nowLimited quantities available. Please allow up to 7 business days for us to hand assemble and test your pedal with care. Once your RZ 01 ships, you'll receive your tracking information. * Hear it used by on the new MEGADETH album! * RZ 01 CHEMICAL Z Dual Channel Overdrive Signature overdrive pedal inspired by Maxon OD808, OD808X, and APEX808 circuits. Designed by Tube Screamer creator Susumu Tamura. Features "Magic" IC used in APEX808 and

Order now—Limited quantities available. 

Please allow up to 7 business days for us to hand assemble and test your pedal with care.
Once your RZ-01 ships, you'll receive your tracking information.

* Hear it used by on the new MEGADETH album! *

RZ-01 CHEMICAL Z
Dual Channel Overdrive

  • Signature overdrive pedal inspired by Maxon OD808, OD808X, and APEX808 circuits.
  • Designed by Tube Screamer creator Susumu Tamura.
  • Features "MagicIC used in APEX808 and Tamura-Mod Tube Screamer mods.
  • Less compression & more even frequency response than a standard 808.
  • Increased output level.
  • Two footswitch-selectable clipping modes
  • NORMAL MODE—for standard 808-style overdrive.
  • HOT MODE—engages alternate diode pair for increased gain, output, and different EQ curve.
  • 9V battery or external power options.
  • Buffered Mechanical Bypass switching.
  • Made in USA.


"A new overdrive based on the mild, natural drive sound of the legendary TS808, with even harmonics added at lower volume levels than the symmetrical clipping diodes would activate, producing rich integer harmonics.

Equipped with a HOT/NORMAL mode foot switch, both modes have excellent high-mid performance, a transparent, comfortable, and well-defined sound.  HOT mode is a higher gain, sparkling, easy-to-listen distortion for playing solos."

-TS Originator Susumu Tamura / June 7, 2024


Roy Z
is a household name in the Metal community.  His extensive resume boasts the privileged position as guitarist, collaborator and producer for the solo sojourns of not one, but two of Metal’s most iconic frontmen – Rob Halford of Judas Priest and Bruce Dickinson of Iron Maiden.

In addition to his work with these vocal titans, Roy has produced over fifty albums for a variety of artists in the hard rock and metal genres.

Most recently, Roy has teamed up once again with Bruce Dickinson on his first solo album in nearly 20 years—The Mandrake Project.

The Chemical Z overdrive was designed to replace Roy’s multi-drive setup with a single pedal that would not just meet all his dirtbox desires, but exceed them.

Designed by Tube Screamer creator Susumu Tamura, the CHEM-Z circuit is based around the “Magic” IC that was only found in limited runs of the best-sounding vintage TS808’s. This IC was also used in the APEX808 that Godlyke released in 2020 under the Maxon Custom Shop banner.

This special OpAmp offers less compression and more output than the typically-used JRC4558. In addition, it produces both even and odd-order harmonics in a similar manner to the preamp & power sections of a tube amp.

More than just a copy of previous designs, Chemical-Z has been optimized for use with high-gain amps. Rich in integer harmonics and with a precisely-tuned upper midrange, CHEM-Z is aggressive yet articulate; edgy yet easy on the ears.

This crunchy clarity not only breathes new life into tube amps, but is also the perfect “plug-in” for adding depth and dimensionality to digital modeling units (Roy uses CHEM- Z to warm up the sound of his Quad Cortex).

Chemical-Z also features a footswitchable hot channel that activates an alternate set of clipping diodes. These now-defunct Panasonic DA2S00100L diodes were used in the Maxon OD808X Overdrive Extreme and have more forward voltage than standard diodes, functioning in a similar manner to the red LED’s that other builders (Keeley, Earthquaker Devices, Fortin, Catalinbread) use in their OD circuits. The result is more gain and output level, but also a noticeable bump to the low-midrange that helps thicken things up for soloing.

This dual-channel design also allows CHEM-Z to be used with clean and semi-clean amps, creating a 3-channel, “clean-crunch-crush” monster rig with just a single pedal.

As with all TWA models, only the highest quality components go into the production of Chemical-Z, including ALPHA potentiometers, Marushin & Neutrik jacks, KOA/Speer resistors and WIMA, Nichicon, Kemet, & Vishay capacitors. CHEM-Z is hand-assembled in the USA using our very own nimble little fingers.

We are once again extremely honored to work with two luminaries in their fields to bring you a pedal that is at the apex of its class. Our heartfelt thanks go out to Roy Z and Tamura-san for partnering with us on this project.

We proudly present to you the Chemical-Z!

 

CHEMICAL-Z SPECIFICATIONS*
Input Impedance: 500k ohms
Output Impedance: 10k ohms or less
Maximum Gain: HOT 27dB @ 2 kHz, NORMAL 23Db @ 2 kHz
Equivalent Input Noise: HOT Typical 106dB / A-wt., NORMAL Typical 104dB / A-wt. Controls: DRIVE / TONE / LEVEL
Switch: True-Bypass switching BYPASS / ENGAGE, MODE HOT / NORMAL 
Power Supply: 9V battery or external power supply 9VDC
Battery life: Approximately 70 hours on a standard manganese battery (Panasonic
6F22) at 25°C / 77°F
Power Consumption: Min. 5 mA at 9VDC (The current consumption will vary depending on the number LED’s in use at any given time).
Dimensions: 120 mm (4.69”)L x 93 mm (3.66”)W x 51mm (2.01”)H
Weight: 369 g (13 Oz) without battery.
Options: POWER-ALL® ECO-DAPTER® - Single Power Supply
*Please note, like all TWA Pedals, the Chemical Z™ will be manufactured in a limited batch of 100.  Unfortunately we are unable to predict exactly when/if a next batch will be manufactured, however if these sell out quickly, we will definitely be making more next year!
*Specifications are subject to change without notice.
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: 97964407917

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Jenna
Phoenix, US
★★★★★ 5
absolutely must buy perfect for dogs. I have a large black lab and he has had so much fun with us.
Size: Large Size 3, Color: White-Blue
I have to say that my dog would be considered an aggressive tower. However, this ball has stayed intact. I love that it comes with the pump. It’s extremely functional very soft for catching can be cleaned. Very easy easy the quality is exceptional. Very functional does have a bounce. I can say he has had so much fun with this since it’s getting it for his birthday on 11/11 I highly recommend this product and would definitely buy again.
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Reviewed in the United States on November 23, 2025
K
Verified Purchase
KLBlake
New York, US
★★★★★ 5
Perfect for keep-away
Size: Large Size 3, Color: Red-Blue
I purchased one of these for my pup and he has a ball throwing it up in the air and chasing it. Handy for something they can play with alone.
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Reviewed in the United States on May 24, 2026
K
Verified Purchase
karen denner
Fort Morgan, US
★★★★★ 5
Your fur kid will thank you!
Color: Yellow Green, Size: 6 Inch
My dog absolutely LOVES this toy! I recently adopted a rescue & wasn’t sure what she might like, so I bought this in a 6” size for a 50# shep/lab/hound. The ball comes with a cute little pump with needle which only takes a few seconds to inflate. I put the ball outside for her; she wasn’t sure of it at first but it didn’t take her long to realize how fun it was to throw around & chase. She throws it up in the air by the loops & runs all over the yard with it & it’s so comical to watch! It seems pretty durable & well made - I’m shocked she hasn’t punctured it by now, but if she does I will definitely buy her another….and another. This is easily her favorite toy. I highly recommend it for your fur kid - you won’t be disappointed, & neither will they..
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Reviewed in the United States on April 21, 2026
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Verified Purchase
Ladyshell
Draper, US
★★★★★ 5
First ball was great!
Color: Black Green, Size: 8 Inch
This ball was great! My dog loves it. I ordered another smaller one. It had no pump and the inside was separated from the outside piece so it couldn’t be pumped up.
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Reviewed in the United States on May 18, 2026
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AMM
Chelsea, US
★★★★★ 5
Fun and durable
Color: Flag, Size: 6 Inch, Color: Flag, Size: 6 Inch
I have a 5 month old teething Whippet puppy and this toy is a favorite. She loves carrying it around by the straps, playing tug, and trying to chew it. I think it’s pretty tough and durable for someone her size. I could see how a shepherd might destroy it quickly, though. I was surprised to find you have to inflate it, but the pump and needles are included and it hasn’t lost any air over several days of rough play. (I kick it and toss it to her. We tug with the straps. She carries it everywhere.) The material feels like a heavy duty soccer ball, just smaller. It’s the perfect size for her. I’d definitely buy it again.
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Reviewed in the United States on May 1, 2026

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