Pro-Ject Phono Box RS2 phono preamplifier Associated Equipment

Sidebar 2: Associated Equipment

Analog sources: Clearaudio Performance DC Wood turntable with Tracer tonearm and Talisman v2 MC cartridge; MoFi Electronics UltraDeck+ turntable with tonearm and StudioTracker MM cartridge and weight.
Preamplification: MoFi Electronics StudioPhono phono preamplifier, MBL N11 preamplifier.
Power amplifiers: MBL C15 monoblocks.
Integrated amplifiers: MBL N51, VAC Sigma 170i.
Loudspeakers: MBL 120, Chario Aviation Amelia.
Cables: Ansuz Acoustics D2, AudioQuest NRG, and Morrow Audio (some interconnects).
Accessories: AudioQuest Niagara 1000 Low-Z Power Noise-Dissipation System with NRG 10 power cord and Vodka Ethernet cable, Critical Mass Systems Maxxum equipment racks, Record Doctor VI record cleaning machine, AudioQuest Anti-Static Record Brush, Onzow Zerodust stylus cleaner, Zanden Audio AT-1 proprietary foam bass traps/tubes (2), AP-1 proprietary foam acoustic panels 35.5" × 23.75" × 1.5" (4).
Room: 18.5' × 17.5' × 12'.—Julie Mullins

COMPANY INFO
Pro-Ject Audio Systems
US distributor: Sumiko Audio
6655 Wedgwood Road N., Suite 115
Maple Grove, MN 5531
(510) 843-4500
ARTICLE CONTENTS

COMMENTS
Anton's picture

Thank you for reviewing it!

Julie Mullins's picture

Thanks for reading, Anton. It was my pleasure (as you might have guessed). Wish I still had it here. ;-)

Ortofan's picture

Are there any plans for reviewing it?

https://teac.jp/int/product/pe-505/top

https://www.lowbeats.de/test-teac-pe-505-symmetrische-phonovorstufe-fuer-mm-und-mc/

Jack L's picture

Hi

It is a real bargain:$1,999 for an Austrian built MM/MC fully in/output balanced dual-mono phono-preamp.

What impressed me most is the use of discrete active devices only & PASSIVE RIAA EQ !!!!. This shows the Austrian designer(s) knows music as much as the preamp design. Austria (ie: Vienna, classical music capital for the world for centuries, no wonder!".

Yes, passive RIAA EQ sounds so much better than the conventional NFB loop EQ used in most most commercial photostages available in the marketplace irrespective of selling price. Ny experience.

Only 'booboo' this preamp designer made, IMO, is the use of switching power supply BUILT-IN on the same circuit board ! To save manufacature cost, I guess.

IMO, NO repeat NO switching electronics should ideally ever be used in any phono-linestages. It will simply impair the sonic musicality.

Glad Pro-jet knows making it up with an outboard linear (non-switching) power supply with additional cost of $800.

Yes, power supply of a preamp is so so crucial for its sonic performance particularly when MC is involved.

FYI, my factory-matched headamp for my moving coil cartridge (both made in Japan) is a single-ended Classs-A fully symmmetric OTL push-pulll topology using discrete solidstate devices, powered by +/- D-size batteries. Only batttery power supply can assure no PS rippling noise & ground induced noise. Period. The sonic reward is: to say the least - very dark quiet music background.

Likewise, I've used a huge battery 'reservoir' to power the 6.3V heaters of the triodes used in my design/built phonostage+linestage.
Passive no-NFB-loop RIAA EQ for best sound, absolutely.

Listening is believing

Jack L

nidaje's picture

Doing a review of a truly balanced phono preamplifier like the Pro-Ject Phono Box RS2 I would expect that the reviewer at least is capable of meeting the criteria for that specific product and being able to supply the needed balanced phono signal, not just a single wired RCA signal path whatever that path might cost. The reviewer says: "My tonearms have RCA cables, so, although I did try the balanced XLR inputs with adapters, I wasn't able to explore the Pro-Ject's "ideal" fully balanced operation (footnote 1)."
Reviews are some times deepened by a "follow-up". Can You supply a "follow-up" with "fully balanced" contributions and with the Power Supply UNI 4.
Comprehensive is comprehensive.

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