• Home
  • AC Noises Urla Fuzz & Synth Resonant Filter Pedal

AC Noises Urla Fuzz & Synth Resonant Filter Pedal

An experimental 2-in-1 Fuzz/Synth effect!



More stock due on Mon 15th Aug 2022.

0 available

to order online today

0 available

at our Guildford Store

More Information

FREE UK Delivery

Free & next day to most UK postcodes on in-stock items.

Earn 229 Loyalty Points

Earn one point for every £1 you spend.

Click and Collect

Available to collect by request.


    Product Description

    Here's what AC Noises say about the Urla Fuzz & Synth Filter Pedal

    A loud, aggressive and experimental device which consists in 2 effects in 1 pedal unit, the URLA is a CMOS fuzz in front of a synth-based dual resonant filter. As aggressive as experimental-friendly, Urla is our tribute to all the industrial, noise and alternative artists/records that made our world a better place to live.

    youtube video thumbnail

    CMOS Fuzz

    Compared to the transistor based fuzz circuits (it doesn't matter if germanium or silicon), in a CMOS fuzz there is no "in-between", no "dynamic range", no "vintage tone" or anything like that. There are just 1s and 0s, so no matter which kind of waveshape you put into it: the output will always be square wave with no adjustable gain neither since the square wave is as distorted as it can get.

    The Urla obviously makes no exceptions and it provides an overdriven, glitchy and gated fuzz sound with a decay that dies abruptly (but still allowing to sustain each note thanks to a bass boost stage that we put at the very beginning of the signal path).


    As the name suggests, this control allows to blend the fuzz sound with the original signal placed in front of the URLA. Clean guitar tone is probably the most basic example in that sense but no doubt the bravest sonic adventures could find plenty of different as exciting solutions (e.g. as "wall of sounds" enthusiasts, we do love to place a shimmer reverb in front of it or some modulation as well to create different kind of textures). Being a fully analogue jFET blend, it goes from almost completely DRY (counter-clockwise) to 100% wet signal (clockwise).

    Dual Resonant Filter

    This is the second effect placed in the internal signal chain of the URLA and it consists in a faithful replica of the analogue filter section of the glorious Korg MS-20, simply our all times favourite vintage monophonic synthesizer.

    It's an HIGH PASS filter connected in series with a LOW PASS one, both adjustable with their relative controls of CUTOFF and PEAK. Also, we added a dual potentiometer to control the VOLUME of both, which is pretty useful in order to dial with other output levels in chain (including the internal FUZZ placed in front).


    These knobs allow to decide where the frequencies (high ones by LP, low ones by HP) have to be cut. No doubt they're the most exciting controls of the URLA.

    We placed those on the external sides of the pedal surface exactly because of that: you'll love messing up with those as much as possible by exploring the wild excursions of both. In fact, depending on the place of their relative PEAK knobs, they can go approximately from 50hz to 15kHz.
    Note: since the filters are connected in series (HP into LP), you'll completely mute your signal by turning the LP cutoff fully counter-clockwise.


    While cutoff allows to remove frequencies (harmonics) from the incoming audio signal, their respective resonance allows to have an additional controlled amplification of that cutoff frequency, creating a secondary peak form and coloring the original pitch.
    The resonances of the original Korg MS-20 are well known for their pretty wild and loud nature due their tendency to create a microphonic feedback at extreme settings. URLA makes no exceptions, so USE THESE KNOBS CAREFULLY because they really make your amp scream at high level!


    We're not going to lie: if you'll not play the URLA with an expression pedal (by using a TRS cable) to control the cutoff of your favorite filter (HP or LP it's up to you: just place the EXP toggle switch where you prefer), you'll probably miss more than the 90% of the fun.
    For that reason, our friend Luca Romanelli from Mastro Valvola (the same guy who wrote the code for the RESPIRA's shimmer) designed an expression input which works correctly with ANY expression pedal on the market.

    But there's more: when the expression pedal is plugged into the URLA, you can still set the minimum (the starting point of the parameter you want to control with the expression pedal) by adjusting the relative cutoff knob.


    • True Bypass
    • Top Mounted Jacks
    • Expression input
    • Power: 9V DC, Centre Negative
    • Current Draw: 100mA
    Loyalty Points

    Earn loyalty points whenever you shop at Andertons. Points can be earned and used online, in store or over the phone: earn and use points however you choose to shop! No need to sign up - points are added automatically when you make a purchase! The more you shop, the more you save, so start earning points now!

    What are points worth?

    One point is worth a 1p discount, and there's no limit on the number of points used per purchase! For example, if you have 1000 points, you can redeem them for a £10 discount on any purchase.

    How many points will I earn when I shop?

    We display the number of points available for a product on the product's page on our website. Normally we'll give you one point for every pound you spend, but watch out for double and triple points deals for even more savings!


    Here at Andertons Music Co. we believe that we stock some of the best musical equipment in the world. That's why we want to make it as quick and easy as possible for you to get your order, safe and sound!

    We offer a wide range of delivery options to help fit around your busy lifestyle without compromise. This includes free, named-day delivery for most UK postcodes on orders over £99 which are in stock, Saturday & Sunday deliveries, and competitive delivery rates worldwide.

    Please note: Some UK postcodes including remote areas and Northern Ireland are subject to charges.

    You can find full details about the services we offer, including details on our international delivery charges, on our main delivery page. Click here to read more.

    Finance available at checkout for orders £300+

    How do I use instant finance?

    It's simple! Just add the products you want to your basket and click the "Checkout" button in your basket. Go through the checkout process and tick the "Finance" option under "Select Your Payment Method". You can then choose which finance term you'd like to apply for, and change your deposit if you wish.

    At the end of the checkout you'll be taken to the V12 Finance web site. This is where your finance application is processed. Assuming your application is accepted you'll be able to place your deposit and confirm your order right there.

    Then, your order will come through to Andertons and we'll send you the goods. Get approval before 3pm and we'll send your order out the same working day (stock permitting) for next working day delivery!

    Who can apply for finance?

    You must: spend over £300, be at least 18 years of age, have been a UK resident for 3 years or more, be able to make repayments by Direct Debit, be in regular employment (minimum of 16 hours per week) including self-employment, or in permanent residence with your partner who is in regular employment.

    Read More About Online Finance

    Andertons Music Company's Registered Office: 58-59 Woodbridge Road, Guildford, GU1 4RF. Andertons Music Company acts as a credit broker and not a lender and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. Andertons Music Company is authorised and regulated by the Financial Conduct Authority. Credit provided subject to age and status.