Product Review

If you are familiar with our original DD-1 tool, the new / additional features of the DD-1+ are: Fully variable gain overlap setting from 0.0dB to 15.0dB Ability to check the gain overlap setting of an amplifier without making adjustments to it. (Great for checking a customer's system if it returns for warranty reasons or a tune up) Also a great way to sell a tune up. Input voltage capacity raised to 200Vrms (40,000 W into 1 ohm) RMS AC voltmeter built in for reference