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When the Carl Martin team designed Quattro, the goal was straightforward: bring four of their most used, performance-ready effects together in one unit — without losing feel, headroom, or clarity. Instead of digital modeling or layered menus, they focused on real circuits, immediate control, and a signal path that behaves like a proper pedalboard.
Quattro is built around four independent analog sections: Compressor, Overdrive, Chorus, and Echo. Each effect has its own dedicated controls and footswitch, allowing the design team to engage or bypass sections instantly during a performance — no scrolling, no presets, just play.
The signal starts with the Compressor/Limiter circuit, offering controlled dynamics and level balancing without squashing the tone. From there, the two-channel Overdrive provides both crunch and high-gain stages, selectable on the fly. The voicing stays tight and articulate, with a tone control that works as a low-pass filter to keep the drive focused.
Next in line is the Vintage Chorus, delivering classic modulation with simple Speed and Depth controls. Subtle settings add movement and width, while deeper settings bring out a more pronounced, vintage character.
The chain ends with the Echo section, voiced for warm, musical repeats. With controls for Level, Tone, Repeat, and Tap Tempo, we can move from slap-back delays to longer rhythmic echoes that stay clear and controlled.
Carl also built in an effects loop between the overdrive and chorus sections. This allows us to insert a favorite drive or fuzz pedal exactly where it belongs in the signal chain — without rewiring the entire rig.
Quattro runs on an internal regulated ±12V power supply, providing the headroom needed to use high-quality components and maintain low noise throughout the system. The result is a multi-effect that feels open, dynamic, and transparent — designed to sound like your amp, not like a processor.
Key Features
Five classic effects in one unit
Compressor, Over Drive x 2, chorus and tap tempo delay/echo
Send/Receive loop – for extra effects
Built-in power supply
Easy layout for fast live use
Studio-quality analog sound
Dimensions: 410 x 160 x 70 / 16.14″ x 6.30″ x 2.76″
Weight: 2.0 kg / 4.41 lbs
Specifi
cations
Input: 1M Ohm
Output: 100 Ohm
S/N Ratio: 56 dB
Compression range: from 1:1 to 1:00
Gain range compressor: +-20 dB
Gain Overdrive max: 89 dB
Tone Overdrive: Cut filter (low pass)
Echo time max: 1000 m.sec
Send impedance loop: 200 Ohm
Return impedance: 1M Ohm
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 next business day with tracking, then 4–9 business days depending on location.
Express shippingChoose Express at checkout — 1–3 business days depending on location.
Click & CollectFREE from our Footscray showroom — we'll email you when it's ready.
Pay your way. Split it into 4 interest-free payments with Afterpay or Zip at checkout (on orders $100–$2,000). Prefer to rent? Ask our team about rent-to-own.
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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. Set up by the manufacturer before dispatch. Real aftercare from real players on 03 4151 5751.