Does Everyone Use 2 Phono Cables with SUT


I just learned a rather expensive lesson from my audio dealer. I always thought I only needed a phono cable from my turntable to my SUT. By adding another phono cable (not interconnect) from the SUT to the phono preamp, I got a nice improvement in “efficiency.” Everything just flows better.

 

I guess everyone uses 2 phono cables? 

 

 

labpro

Showing 5 responses by dover

@elliottbnewcombjr 

The 2.5ohm T1 supposedly has a turns ration of at least 30. He's running the 16ohm Madake into 52ohms. His output voltage would be 7volts into the phono.

It's a mess - total mismatch - probably the result of reading too many fairy stories passing as audio reviews.

@mulveling 

If you look at the cost of the components to have such a mismatch is sad.

If you put 91 in your Ferrari, it will run, but it won't perform.

 

@labpro 

Ok, now I’m really curious. I’m going to borrow my friends Auditorium 23 “T2”

Thats a great idea. It will give you an indication of whether the mismatch is having a significant affect or not.

By the way, I have the DIN phono cable AND the T1 SUT both grounded to the phono preamp.

Thats correct for the Homage.

For the SUT to phono stage, you don't need a dedicated phono cable with the additional earth wire.

You can run a single wire from the Homage earth socket to the phono stage separately. If you use the Auditorium23 cables thats how they wire it.

The main advantage of dedicated phono cables are

- they are designed for small signal and may have superior shielding

- usually have the additional earth wire

- ideally low capacitance ( which is desirable for your SUT to phono connection ).

If you run a separate earth wire from the homage earth socket to the phono stage all you need are well shielded, low capacitance cables, and short as possible.

 

 

 

 

I’ve measured C in a 22 foot run of my AntiCables IC vs another 22-ft of  IC with a conventional shield. 

Wow, you must like soggy bass and rolled off high frequencies - usual single strand attributes - no damping factor. ( Yes I have heard the anti cables )

The above statement is only relevant to the particular shielded cable you tried.

Specifications for Anticables are 0.0095nanofarad/ft - 38 picofarad per meter.

I use a high gauge stranded silver phono cable - twisted pair with double shielding - only measures 48 picofarad in total including the connectors despite using much thicker conductors than the Anticables.

Generalisations can be dangerous - pays to check the specs.

I don’t perseverate too much on cables, although I do believe they make a big difference. I needed one 22-foot length cable to run from my Steelhead to the built-in amplifier on a Beveridge speaker; the other channel needs only about 12 feet.

OMG thats even worse.

Unequal lengths - so the phase shifts at various frequencies through the cables will be different for each channel.

I cant see how the Manley can drive 22ft cables without loss.

You would be better off running short interconnects and decoupling the Beverage amps - extend the cables between the Beverage amps and crossover. I would expect significant gains with this alternate arrangement.