Topic: Future of ADI-2/4 SE?

Hi everyone, I was wondering if there were plans for a new model of the ADI-2/4 SE, maybe one which could handle MC carts? Is such a thing even possible...? Sorry to post here but I am curious and could not find any thread mentioning the subject.

All the best!

2 (edited by KaiS 2024-09-23 22:59:49)

Re: Future of ADI-2/4 SE?

anthos314 wrote:

…one which could handle MC carts?!

Get a 2nd hand Ortofon T30 and you’ll never look back.
It can be used with high and low impedance MCs, and perfectly matches with ADI-2/4 Pro SE.
That combination is hard to beat.
https://rvb-img.reverb.com/image/upload/s--dF2Ma6NY--/a_0/f_auto,t_large/v1691907153/x0ll7dgu0lzqlsmnshak.jpg

Re: Future of ADI-2/4 SE?

Thanks a lot! Will travel back in time and buy one :-)

4 (edited by KaiS 2024-09-26 20:54:59)

Re: Future of ADI-2/4 SE?

anthos314 wrote:

Thanks a lot! Will travel back in time and buy one :-)

Fortunately they were quite popular then because of the exceptional quality, which results in a good availability on the used market today.

Hard to find something better these days, and unbeatable flexibility with 5 well-stepped impedance settings.

Re: Future of ADI-2/4 SE?

Thanks a lot for the suggestion!

Re: Future of ADI-2/4 SE?

Sorry for resurrecting this thread but thumbing through the ADI 2/4 SE I see the following:

"For the rare case of a balanced connection of an MM cartridge: this requires an adapter to XLR or TRS, depending on
the available connection. Furthermore a resistor of 100 kOhm has to be soldered across the wire pair for correct termination, since the input has 90 kOhm impedance in balanced mode (90 k and 100 k result in the desired 47 kOhm)."

Does it mean that if my SUT provides a balanced output, the cables between the SUT and the RME have to be soldered with a 100 kOhm resistor? How would this look like exactly? Thank you very much.

7 (edited by KaiS 2025-01-10 12:58:05)

Re: Future of ADI-2/4 SE?

anthos314 wrote:

"For the rare case of a balanced connection of an MM cartridge: this requires an adapter to XLR or TRS, depending on
the available connection. Furthermore a resistor of 100 kOhm has to be soldered across the wire pair for correct termination, since the input has 90 kOhm impedance in balanced mode (90 k and 100 k result in the desired 47 kOhm)."

Does it mean that if my SUT provides a balanced output, the cables between the SUT and the RME have to be soldered with a 100 kOhm resistor? How would this look like exactly? Thank you very much.

If your Step Up Transformer offers balanced output (I don’t know any), a correct termination of 47 kOhm +/- 10% is still mandatory.
Else you get a strong high frequency boost from the SUT’s inductance resonating with the cable’s and ADI-2/4 Pro SE’s capacitance.

To do that, unscrew one XLR connector on each SUT->ADI-2 interconnect cable and solder a bridge resistor of 100 kOhm between the XLR pins designated 2+3.

Place a label sticker on the cables to mark their non-standard state for later reference.

Re: Future of ADI-2/4 SE?

Thanks a lot for your help!