Wolff Audio Collaborator

Collaborator is a high-definition, four-channel reference headphone amplifier designed for demanding studio environments. Housed in a rugged steel enclosure and powered by an external PSU, it delivers exceptional headroom, clarity, and output power.

An integrated HearMe foldback microphone allows room ambience to be blended directly into each headphone mix, supporting natural communication and uninterrupted collaboration. Artists can stay fully engaged without removing headphones, while performers such as drummers can dial in precise room feedback. The mic can be activated via a standard footswitch.

System expansion is simple. A rear-panel TRS input allows multiple Collaborator units to be linked, making the system ideal for larger groups including vocal ensembles, horn sections, or orchestral sessions. Balanced +4 dBu XLR inputs ensure clean, professional signal integration.

Specifications

• Four-channel headphone amplifier with dedicated level controls and outputs
• Integrated HearMe foldback microphone with gain trim and level control
• External 500 Series–style power supply for maximum headroom and punch
• Rear-panel TRS input for linking multiple units
• Balanced +4 dBu XLR inputs
• Solid steel chassis construction

What’s Included

• Mic stand adapters
• 500 Series power supply with IEC cable

Optional Accessories

• Headphone holder
• Drink holder
• Optimal stand

US and EU parcels ship via UPS, ETA 1-7 working days from pickup day zero. That also applies to most locations worldwide.

All shipments are fully insured.

Bigger shipments requiring pallets or custom made crates ship to US, CA, JP, CN, AU and other outside of EU locations via DHL Air Freight, ETA is normally approx. 7-14 working days from pickup day zero.

Big shipments inside EU ship via different freight companies, recently mostly via ACE Logistics. Freight forwarders can use different courier companies for deliveries to final destinations.

Palletising and crating time can vary depending on the size of the shipment and packaging queue. We pack all our shipments with great care.

You are most welcome to pick your order up yourself from our Retrosonic Pro Audio showroom, studio and warehouse in Tallinn, Estonia.

We ship worldwide – contact us for a personal shipping quote or any other questions.

VAT (Value Added Tax) can be deducted if you have a company with a valid EU VAT number or if you're based outside of the EU. Non-EU buyers pay all and any import tax and duty as regulated by their local customs.