The manual states, 'The H910’s master clock wasn’t crystal-based but, instead, it was a tuned LC (inductor/capacitor) oscillator. The stereo widening effect you hear is because of the natural pitch drift between the two channels.' Basically, one set of controls seems to be sending the same settings to independently modeled left and right versions of the H910. According to Dan Gillespie of Eventide, 'The H910 Stereo version is indeed Dual Mono, no summing happening. Even in this 'do nothing' mode, the source is spread across the stereo field in a pleasant and interesting way. The stereo plug-in launches in the most common mode of PITCH CHANGE with the HARMONIZER set to zero in manual mode. If you enable DELAY ONLY mode in the stereo plug-in, everything stays true mono down the center. The DELAY ONLY switch allows you to toggle between the unit's two major modes: PITCH CHANGE and DELAY ONLY. But the typical configuration of the UAD H910 in both VST and AU formats is stereo. The VST version can be loaded as a mono plug-in if you want the source and effects to appear directly in the center.

The answer has to do with the designers' creative application of 1974 technology, even to the point of turning 'constraints' into assets. UA collaborated with feature set suggestions, listening, evaluation and testing, but it's all their work.' Modern sound engineers who haven't used a hardware H910 might wonder how an emulation of the first ever digital effects unit from 1974 can be useful in today's production environment 40 years down the road. According to Gannon Kashiwa of UA, the UA Eventide H910 Harmonizer plug-in 'was entirely developed by Eventide. Universal Audio is known for their loving and obsessive digital recreations of vintage gear.

Website: Eventide® H910 Harmonizer Plug-in Retro Forte.ĝRM: Internet-based authorization of UAD hardware.ğormats: VST, AU, RTAS, AAX 64 Win/Mac 32-64.Product: Eventide H910 Harmonizer Plug-In.

Eventide h910 harmonizer manual