Quilter Labs SuperBlock US

$285.00 to $319.00 Price Tier: Standard

5.0 (2)

1 Critic Review

1 Review

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Page last updated Jul 06, 2026

Pricing and availability

We compare 600+ stores and found this item at 7 stores. Prices updated July 6, 2026.

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4.5 (47)

$319.00

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5.0 (5)

$319.00

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4.5 (44)

$319.00 New

$287.10 Used (Like New)

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5.0 (6)

$319.00 7 available New

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5.0 (4)

$319.00

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5.0 (2)

$319.00

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4.8 (103)

$289.00 $285.00 $4.00 · All time low

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Average Price: $314

Standard/Professional

$300

$801+

Price Tier

In the Guitar Amplifier Heads category, Quilter Labs SuperBlock US is priced in the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

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Standard

High-end

Price History

Based on price data from 5 merchants for "Quilter Labs SuperBlock US". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Introducing the Quilter Labs SuperBlock US, a pedalboard amplifier that delivers a perfect blend of vintage and modern tone. This compact amp head offers the power of a 25-watt tube amp in a pedalboard-sized package. With three classic American voicings – '57 Tweed, '61 Blonde, and '65 Blackface – you have access to a rich palette of sounds that capture the essence of California's iconic musical heritage.

The SuperBlock US puts the power of an amp right on your pedalboard. Powered by Quilter Labs' PS-24 power supply, you can unleash a full 25 watts of tube-like power. Alternatively, a standard 9V power supply can be used for quieter applications, giving you 1 watt of power. The SuperBlock US also features two Cab Sims and an FRFR mode on the XLR Out and headphone out making it a versatile piece of gear for any setup.

With a built-in effects loop, you can add your favorite effects pedals into the signal chain without losing any tone quality. The SuperBlock US also features a Limiter and Reverb, further expanding its tonal capabilities and providing you with a wide range of sonic possibilities.

Key Features:

Three classic American voicings – '57 Tweed, '61 Blonde, and '65 Blackface
25-watt power with PS-24 power supply, or 1 watt with standard 9V power supply
Two Cab Sims and FRFR mode on XLR Out and headphone out
Effects loop for integrating additional effects pedals
Limiter and Reverb for expanded tonal possibilities

Product specs

Type	Solid State
Number of Channels	Single
Output Power	25W
Reverb	Yes
Effects	Limiter
EQ	3-band EQ
Amp Modeling	Yes
Number of Models	3
Inputs	1 x 1/4"
Outputs	1 x XLR (direct out), 1 x 1/4" (4/8/16 ohms)
Headphones	1 x 1/4"
Effects Loop	Yes
Power Source	24V DC 3A center-positive power supply (included), 9V DC 300mA center-negative power supply (sold separately)
Height	1.5"
Width	6.5"
Depth	4.25"
Weight	1.35 lbs.

FAQs

What type of power supply does the Quilter Labs SuperBlock US require?: The Quilter Labs SuperBlock US requires a 24V DC 3A center-positive power supply, which is included. It can also operate with a 9V DC 300mA center-negative power supply, sold separately.
Can the Quilter Labs SuperBlock US be used directly with a PA system?: Yes, the Quilter Labs SuperBlock US features an XLR direct out, allowing it to connect directly to a PA system for live performance.
Does the Quilter Labs SuperBlock US include amp modeling features?: Yes, the Quilter Labs SuperBlock US includes amp modeling with three different models to choose from, providing versatile tonal options.
Is the Quilter Labs SuperBlock US suitable for use with headphones?: Yes, the Quilter Labs SuperBlock US has a 1/4" headphone output, allowing for silent practice sessions.
Does the Quilter Labs SuperBlock US have built-in reverb?: Yes, the Quilter Labs SuperBlock US includes a built-in reverb effect for added depth and ambiance in your sound.
How portable is the Quilter Labs SuperBlock US?: The Quilter Labs SuperBlock US is highly portable, weighing only 1.35 lbs and measuring 6.5" in width, making it easy to transport and fit on a pedalboard.

Videos

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QuilterLabs

Quilter Superblock US demo by RJ Ronquillo

QuilterLabs

Quilter SuperBlock US

QuilterLabs

Quilter Superblock US - Sound Demo (no talking)

Guitar Bonedo

Quilter Superblock US 25 Watt Pedal Based Guitar Amplifier Demonstration

GearMusicOakville

Quilter SuperBlock US Demo with Corey Witt

QuilterLabs

Quilter Superblock US

Giuseppe Montalbano

Quilter Superblock US Demo

sheifiproductions

Superblock US (Quilter) - SRV sound at every volume

Dizzy Guitar

Quilter Superblock US review

paultrombetta

Reviews

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PROS

Best-in-class solid state performance with fantastic cleans and great gain
Lightweight and portable, fits easily on a pedalboard
Exceptionally good with pedals; no grainy tones
Offers a warm, tube-like sound and responsiveness without the hiss
Features multiple voicings for versatile tone shaping
Loud enough for band settings and small gigs
Comes with a useful FX loop and a great sounding reverb
Equipped with a line out (XLR) with a high-quality cab simulator
Provides both 24-volt and 9-volt power options for full-band jams and practice
Exceptionally responsive EQ controls for easy tone tweaking at any venue

CONS

May not be loud enough on its own for all gig situations
Some users find the overdrive tone fuzzy and muddy at high gain settings
Main power supply is a separate unit, affecting portability
Construction perceived as less robust compared to other Quilter models

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Quilter Labs SuperBlock US.

Features and functionality

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The built-in limiter and JFETs in the SuperBlock US are highlighted for creating a unique feel, contributing to its standout sound.
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Users highlight the SuperBlock US's versatility, with its headphone jack, FX loop, and ability to handle 4/8/16 ohm cabs without damage.
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The direct out with cabinet modeling receives praise for its effectiveness in studio settings, providing a high-quality sound for recording without a physical cab.
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Comparisons

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Owners suggest the SuperBlock US as a replacement for a Fender DRRI, citing its effective emulation of classic Fender tones.
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The SuperBlock US's treble capabilities are likened to traditional Fender amps, which can become trebly quickly.
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The SuperBlock US is noted for better mimicking Fender's sound compared to the Interblock, which has a more balanced EQ suitable for jazz.
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The DV Gold cab, rated at 125 watts, is noted for its compatibility with the SuperBlock US for clean tones with mild mid-scoop, suitable for indie prog styles like Radiohead.
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The SuperBlock US is compared tonally to a Fender Deluxe Reverb, with users suggesting it's 95-98% of the way there, noting a difference in the low end.
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The SuperBlock US's clean tones are often favored over the on-board gain, and it's frequently used as a pedal platform, preferred by some over traditional tube amps.
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Owners compare its loudness to a 25W tube amp, noting it's similar in volume to a 15W Dark Terror and surpasses a Vox VR in sound quality.
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Use cases and applications

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The SuperBlock US's tweed/57 voicing is preferred over the Interblock's vintage voicing for users not focused on pedal platforms.
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Users mention using the SuperBlock US in both band practice and recording scenarios, emphasizing its versatility in different settings without needing a physical cab.
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Users prefer the DV Gold 112 cab for its lightweight build and well-balanced sound, especially for achieving Fender-like sparkle in clean tones.
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The amp is noted for its suitability in small studios and for musicians seeking creative tone manipulation, particularly in post-punk and jazz genres.
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The SuperBlock US is favored for its clean tones, making it ideal for clean jazz and fingerstyle at bedroom levels, especially when paired with pickups that emphasize treble.
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Mods and upgrades

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One owner pairs the SuperBlock US with a Music Man oversized 1x12 cab and Eminence Swamp Thang speaker, describing it as nearly perfect for their needs.
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User experience

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Owners appreciate the amp's "tube-like" sound and headroom, which allows for expressive playing without distortion, especially noted when using modulation pedals.
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Critic Reviews

Quilter SuperBlock US | Guitarkind

guitarkind.com

The Quilter Labs SuperBlock US is a surprisingly powerful and compact pedal amp, delivering authentic tones reminiscent of classic tube amplifiers. Its thoughtful design includes user-friendly controls and an external effects loop, enhancing its appeal for tone-conscious players. While it excels in clean sounds and offers versatile voicings, it may not satisfy those seeking high-gain distortion. Additionally, some users might find the tonal nuances slightly less warm than traditional tube amps. Still, with its lightweight build and impressive sound quality, the SuperBlock US stands out as a robust option for both home use and smaller gigs.

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5.0 out of 5

Based on 1 Review and 2 Ratings

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skasick

488

almost 3 years ago

Small but mighty!

I'm just going to get this out of the way. I love Quilter. Whatever they are doing is absolute magic, and I love them for it.

So after getting rid of my Hot Rod Deluxe, I figured it was time to find an appropriate amplifier to replace it. I elected for the SuperBlock US, partially because of it's direct in capabilities, but also because I could very well mount it at the end of my pedalboard and send it to my 1x12 cabinet.

Forget everything you've heard about solid state amplifiers - this thing sounds amazing. It's warm, it's responsive, and it's quintessentially American in voicing. Very clean, with a good amount of headroom for pedals. And at 25 watts, it's a screamer!

EDIT 8/27/24: I have gotten rid of it, but I still very much recommend it!