Audio Merge will soon begin production of their Altec 9067B-inspired filter unit, following a successful crowdfunding campaign that saw them achieve their goal in just three hours. The CF67B accurately replicates the classic design, housing passive variable low- and high-pass filters in a 2U rackmount enclosure and adding some new features not found on the original device.
The new unit continues the theme that Audio Merge embarked upon with the release of their KTBK-1B, another design that replicated Altec’s 9069B and enhanced it with control over the filter shape and a variable resonance control. The CF67B takes a similar approach, augmenting the original circuit design with the same filter mode selection and adjustable resonance features.
The hand-built unit boasts an all-analogue signal path that employs custom multi-tapped inductors, with a pair of stepped rotary controls offering a choice of 10 frequencies for each filter — the high-pass ranges from 70Hz to 7.5kHz, and the low-pass extends from 250Hz to 10kHz. A line-level signal is accepted via rear-panel quarter-inch TRS connectors, and Audio Merge say they can supply matched units to those who want a stereo pair.
Pricing & Availability
Pricing and availability information for the CF67B is yet to be confirmed. To find out more and keep updated on Audio Merge’s progress, check out the company’s website.
