Question 1

I normally use 3.5mm - rca connect to my nw-zx300 so will it make differences if i move to the balanced output using the adaptor?

Accepted Answer

I gather that the NW-ZX300 also has a 4,4mm balanced output. This Gerika adapter however has a serious fault: three poles are electrically shorted so it can only function as an unbalanced adapter (unless Gerika have fixed the problem). This can easily be verified with any multimeter. Obviously the balanced output requires four separate electrical connections to your headphone: two cables to each "ear". To enjoy the balanced output you obviously need headphones with a balanced cable (4 poles/wires). Do not connect unbalanced headphones to a balanced output. If you fulfil those requirements, you also need a true balanced 4.4mm to 3.5mm adapter such as the "Meijunter 4.4mm (Male) to 3.5mm (Female) Balanced Cable Plug Adapter for Sony PHA-2A/iBasso/Fiio/HiFiman Headphones, Replacement Metal Cord Plug Line Jack Connector" in amazon.com. This correctly passes 4 poles from the male plug to the female socket.

Question 2

Would this work to get 2.5mm balanced output from my es100 dac, for HiFiman Sundara w/ 3.5mm jack?

Accepted Answer

I believe the balanced outputs (on the DAC) are either 2.5mm or 4.4mm.
Most ALSO have a 3.5mm jack.
This adapter allows for use of standard 3.5mm headphones/ earbuds on 2.5mm outputs
Adapters are available in most configurations. I would get an adapter for 4.4mm or 2.5mm ONLY.
This particular adapter fits a 2.5mm output for 3.5mm audio connections.
They won't make your 3.5mm output balanced.

Question 3

Is the cable 2.5 balanced male to 3.5 balanced female or 3.5 unbalanced female?

Accepted Answer

This Geekria adapter is 2.5mm balanced male to 3.5mm balanced  female.

Question 4

Does this convert the output to balanced audio?  Or just allow one to use balanced cables in a 3.5mm port?  Is there a balanced audio benefit?

Accepted Answer

It only adapts. There is no balanced 3.5mm advantage.

ASIN	B075165H2M
Amazon Bestseller	#5,931 in Electronics ( See Top 100 in Electronics ) #29 in Audio & Video Adapters
Brand	GEEKRIA
Color	Silver
Compatible Devices	Sony NW-ZX300A, NW-WM1A, NW-WM1Z, PHA-2A, TA-ZH1ES, Lotoo PAW 6000, HIFIMAN R2R2000, FiiO M11, CAYIN N6ii/A01, iBasso DX160, Hidizs S9 Pro Plus, etc
Connector Type	Auxiliary
Country of Origin	China
Current Rating	1 Amps
Customer Reviews	4.0 4.0 out of 5 stars (2,581)
Finish	Metallic
Item Dimensions	50 x 8 x 8 mm
Item Weight	5 Grams
Manufacturer	GEEKRIA
Mfr Part Number	PJZ44-05
Model Number	PJZ44-05
Number of Items	1
Number of Ports	2
Package Quantity	1
Power Plug Type	No Plug
Smart Home Compatibility	Not Smart Home Compatible
Specific Uses For Product	Personal Audio Equipment
UPC	638170765780
Unit Count	1 Count
Warranty Description	1 year manufacturer

Geekria Apollo Conversion Plug 4.4mm Male 5-Pole to 3.5mm Female Adapter Plug 4-Pole 4.4mm Balance Player to 3.5mm TRRS Balanced Connection Cable for Earphones Headphones Sony NW-ZX300A, NW-WM1A, NW-WM1Z, PHA-2A, TA-ZH1ES Audio Player DAP etc

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