- Sep 20, 2008
- 3,369
- 38
- Disclosures
- Jim Dunlop USA, King Kong Cases, Golden Eagle Energy Drink
I have an OBP-2 at 18v in my CRFM and love it. My new NS-4H2 has the OBP-3 at 9v and it's pretty amazing. I love having the added mid control. The one thing I will say is this bass doesn't seem to have the same high end range that my others do. Not sure if its the pre or the bass. Still sounds great. The lows and mids are impressive. There is definitely a little extra magic in a US Spector!
Do the 18 volt mod on the OBP-3, it might get you where you want? I NEVER had an issue with highs on that pre?


