Exactly this, except I drop the volume on the neck pickup a bit.
Used to have a 4003 built in '05, which didn't have the Vintage Circuit. Loved the sound of it, but always kind of wished I'd got one with the circuit included. When I bought the current 4003, the VC was included, and I was keen to try it out. Let's just say that it didn't take very long for the VC to be deactivated.
Played mine yesterday, and did a bit of experimenting with this thread in mind.
Yes, the neck pickup's output is less than the bridge pickup, and because of that, it does sound a bit thinner, but still very much a "rounded" sound. The pickup is set as high as I can get it.
IIRC, Bass Direct sell Nordenbocker's.
Another recommendation for a dedicated recorder, like the Zoom mentioned, but there are others out there.
I have a Tascam DR-05, which does the same thing, records onto a micro SD card, so easily transferred onto a computer and shared to the rest of the band.
Looked at the Nordstrand, but then I have a set of Gemini WaveRider's in the Walnut Faker in the avatar. Very nice sounds from them.
Rickenbacker Bass Pickups (geminipickups.co.uk)
It should have the Push / Pull pot on the Tone control, is that pushed down or up?
I use mine with both pickups on, but the neck volume turned down a bit. Sounds plenty ballsy to me.
Plus, the neck pickup is reknown to be a bit weak for some reason.
You could look at replacement pickups, Gemini Pickups in Wales do a couple of variants, hand wound & RWRP. Nice. There's also the Nordstrand Rickenbocker.
Cort SCMS?
Cort A5 PLus SCMS OPN, five string bass, bass,active. bartolini, hipshot - UK Basses specialist, Warwick, special offer, sale, London, Manchester, Birmingham, USA (bassdirect.co.uk)