Authorised Australian dealer · Genuine stock & warranty

Carl Martin Ottawa Envelope Filter Guitar Pedal

4.6 · 870+ Google reviews
  • 57350PT front
  • Carl Martin Ottawa Envelope Filter Guitar Pedal — view 3
  • Carl Martin Ottawa Envelope Filter Guitar Pedal — view 4
1 3
$319.00
$319.00
Taxes included. Shipping calculated at checkout.

Authorised-dealer price · Price-match promise

Make 4 interest-free payments of $79.75 with Afterpay
or pay nothing today with Zip
Available to order online — ships or Click & Collect from Footscray in 1–3 business days Dispatched with tracking · Standard delivery 4–9 business days · Express 1–3 — depending on your location.

Add this & your order ships free.

Free shipping over $150 Returns & warranty Authorised Carl dealer Warranty included Finance available Price-match promise Talk to our experts

57350PT

View full details

The full story

Description

When Carl Martin redesigned their optical envelope filter, they wanted to keep the expressive character that makes this type of effect so musical — while making it easier to control and more consistent across different guitars and playing styles. The result is Ottawa: an envelope filter that delivers classic wah-like movement without the need for a treadle. Ottawa reacts directly to how you play. Pick harder, and the filter opens up. Play lighter, and it stays subtle and controlled. That makes it equally effective for rhythmic parts and expressive lead lines, whether you’re after psychedelic textures, funky rhythm work, or more modern envelope-driven tones. At the center of the circuit is an optical envelope filter with three selectable filter modes: High Pass, Band Pass, and Low Pass. Each mode changes how the filter responds and where it focuses the frequency sweep, giving us very different tonal characters from the same pedal. The Q control adjusts the bandwidth and resonance of the filter, shaping how narrow or wide the sweep feels. Attack controls how quickly the filter responds to your picking, allowing anything from fast, percussive movement to slower, more vocal-like sweeps. A dedicated Tone control works as a high-cut filter, while Level lets us match or boost the output to suit the rest of the rig. Ottawa is built as a fully analog design, housed in a compact and rugged enclosure. Simple to dial in, highly responsive, and designed to feel like an extension of your playing rather than a preset effect. Key Features Envelope filter pedal with analog circuitry Adjustable Attack The Q knob controls the width of the Wah Low Pass, Band Pass and High Pass centre switch settings Built-in high cut and level control Responsive to pick dynamics and pickup selection Compact, rugged housing Dimensions: 60 x 115 x 50 / 2.36″ x 4.53″ x 1.97″ Weight: 0.34 kg / 0.75 lbs Specifi cations Input: 1M Ohm Output: 330 Ohm S/N Ratio: 56 dB Tone: High Cut Power consumption: max. 14mA. Power supply: 9 V DC (regulated), 30 mA minimum, 2.1 mm female plug, center negative (-)

The practical bits

Details & dimensions

Brand
Carl
Type
Other Pedals & Effects

Ways to pay & get it

Delivery & finance options

Standard shippingFlat $7 Australia-wide, FREE over $150 — dispatched in 1–3 business days with tracking, then 4–9 business days depending on location.
Express shippingFlat $15 Australia-wide — choose Express at checkout for 1–3 business days depending on location.
Click & CollectFREE from our Footscray showroom — usually ready in 1–3 business days, we’ll confirm by email.
Pay your way. Split it into 4 interest-free payments with Afterpay or Zip at checkout (on orders $100–$2,000).
4.6 from 870+ Google reviews Independent Footscray music store since 1997. Read our Google reviews →

Buy with confidence

Delivery, returns & warranty

  • Shipping & delivery

    Free standard shipping on orders over $150. Most orders dispatched the next business day. Tracked & insured on every order over $30. Free Click & Collect from our Footscray showroom.

  • Returns

    Arrived faulty, damaged, or not doing what it should? Return it within 7 days for a refund or exchange. After that, we'll arrange a manufacturer warranty repair and keep you posted throughout. All we ask is that it comes back in original condition, with all packaging and your proof of purchase. Your Australian Consumer Law rights always apply.

  • Warranty & support

    Genuine, Australian-delivered stock. Authorised dealer. Real aftercare from real players on 03 4151 5751.

Popular together

Others also bought

Keep exploring

More from this category