Thanks mesch! I'll get in touch with Needle Doctor about the PRB EIn case there's any confusion, the recommendation is for the Phono Box E... not Record Box. And I don't see it listed at Needle Doctor.
https://www.amazon.com/Pro-Ject-Phono-Box-Preamplifier-Black/dp/B01CZW87HS/ref=sr_1_4?ie=UTF8&qi...
Technical specifications Pro-Ject Phono Box E $59.95
* typical for MM or high output MC cartridges
Input capacitance/input impedance, MM:47kohms/120pF* Gain:40dB
Output voltage typically:500mV/1kHz at 5mV/1kHz
Noise floor:88dB (A weighted)
THD:<0,05%
RIAA-equalisation curve accuracy:20Hz - 20kHz / max. 0,5dB
Input:1 pair RCA/phono sockets
Line-level output:1 pair RCA/phono sockets
Outboard power supply:18V/500mA DC
Power consumption:20mA DC