

Solid State Logic VHD+ Pre Module
(B-Stock)
B-stock units direct from SSL. 3 month SSL warranty included.
The VHD+ Pre Module for the popular 500 format modular rack platform makes the uniquely versatile VHD based preamp technology from Duality, SSL's industry leading large format studio console, available for studios of all sizes. The VHD+ Pre module is an immensely versatile recording and processing device. It can deliver ultra clean SSL SuperAnalogue grade recordings but also features a switchable VHD mode. SSL's patented Variable Harmonic Drive (VHD) system uses a 100% analogue signal path to generate rich harmonic distortion.
Increase VHD input gain and the Variable Harmonic Drive process introduces either 2nd or 3rd harmonic distortion or a blend of the two to your source material. At lower gain settings it adds gentle valve-style warmth or a touch of transistor edge. As the gain is increased the more extreme the distortion becomes, until at high gain settings it delivers fierce trashy transistor-esque grunge.
The VHD+ Pre module gives the user ultimate versatility from a studio grade preamp. Whether it's ultra-clean traditional SSL, subtle warming or totally trashy transistor distortion, VHD will change your expectations of what a preamplifier should deliver.
- SSL SuperAnalogue grade preamp
- 2nd order harmonics (valve warmth to extreme distortion)
- 3rd order harmonics (transistor edge to totally trashed)
- Absolute control via 2nd and 3rd order harmonic blend
- Variable Harmonic Drive (VHD) in/out switch
- Switchable LF Filter
- +48V phantom power
- Phase invert switch
- PAD switch
- Hi-Z switch

Solid State Logic VHD+ Pre Module
B-Stock Gear FAQs
What does B-Stock mean?
In the UK you can only sell items as New if they are in their unopened, original packaging. But what happens to the items that may have been sold and returned within the purchase cool off period? They can’t be sold as new anymore because the box has been opened. It’s not new, but it’s also not second-hand, so it is then classed as B-Stock and typically priced somewhere in between. The same also applies for items that might have been scratched or dented in the manufacturing process or during delivery.
All of our B-Stock items are sold on behalf of our manufacturing partners and are under 3 month Make Noise Pro Audio warranty and in certain circumstances the original manufacturers warranty too.
All units will have been either fully tested by us in-house or a factory QC by the manufacturer where appropriate.
What advantages are there to buying B-Stock?
B-stock units are usually in "as new" condition. You get the reassurance of being a relatively unused product with the lower cost vs buying new.
Do B-Stock units have any warranty?
3 month manufacturer warranty through Make Noise Pro Audio.