[cheezies]

Source: DIYEDEN SVDAC04-U
Cans: Sennheiser HD595
Amp: Little Dot II++ (haven't bought yet)

The DIYEDEN USB DAC already has a pre-amplified headphone jack. From what I've read, amplifying the pre-amped output is a bad idea. I'm left with using the RCA output jacks, but these jacks are used for my speakers. I want to hook up both my speakers and the amp to the RCA outputs of my USB DAC.

If I used a RCA switch, will the sound quality degrade greatly before reaching the amp? Perhaps I could use a splitter on the output of the amp going to both the headphones and speakers?

 

[absolutlemur]

Quote:

Originally Posted by cheezies /img/forum/go_quote.gif Current I have the following. Source: DIYEDEN SVDAC04-U Cans: Sennheiser HD595 Amp: Little Dot II++ (haven't bought yet) The DIYEDEN USB DAC already has a pre-amplified headphone jack. From what I've read, amplifying the pre-amped output is a bad idea. I'm left with using the RCA output jacks, but these jacks are used for my speakers. I want to hook up both my speakers and the amp to the RCA outputs of my USB DAC. If I used a RCA switch, will the sound quality degrade greatly before reaching the amp? Perhaps I could use a splitter on the output of the amp going to both the headphones and speakers?

I'm not sure about changes in impedance, but a quality passive preamp has worked wonders for my setup with both absolute transparency and signal routing capabilities.

<noob>

Edit: Could you explain how a switch (assuming it uses the best components available) would differ in impedance from a direct connection?

 

[ephrank]

Splitter is not a good idea because it changes the input impedance of the headphones amp.

 

[absolutlemur]

eck, double post. Damn you Stella Aerois

 

[cheezies]

Quote:

Originally Posted by absolutlemur /img/forum/go_quote.gif I'm not sure about changes in impedance, but a quality passive preamp has worked wonders for my setup with both absolute transparency and signal routing capabilities. <noob> Edit: Could you explain how a switch (assuming it uses the best components available) would differ in impedance from a direct connection?

That's a good point, if the switch is just a "switch" and nothing else then the impedance would remain the same. I assumed there was some "magic" inside a switch box that might somehow change that.

 

[HippieTom]

BUMP this tread. Im so comfused. i dont want to switch rca back on computer when i want to liten to speakers on my nad.how do i get 2 amps on one source? i cant find any decent RCA spitter. do you guys know of this problem. i cant find out how to make this without "Y-Splitter"

 

[Tridacnid]

Wow, resurrection of 6 months.

I believe MAD audio sells a switcher, and Twister Pear Audio sells the Darwin, a DIY board that lets you switch.

 

[HippieTom]

Thanx for the input. have read around abit and found this.

YULONG DAH1 MARK DAC/ Headphone Amplifier+ USB DAC - eBay (item 120306659461 end time Nov-16-08 16:00:00 PST).

I just have to try it. and then i can switch too

.This will be my next buy.(with some new phones too

)

 

[quantx]

https://luminousaudio.com/collections/axiom-ii-passive-preamp