Originally Posted by AJHeadfi
Now you can you hear where the AU$500 has gone? That doesn't seem like much in headfi world.
NOTE: I have the Go-Dap DD Socket1 MUSES01 Line Amp ±9V VUP Tune
case 1 )ipod touch 5G--> stock lightning cable -->Ventrecraft -->oyadie3.5 to 3.5 cable -->arrow4G-->ACS T15 | ER4S
case 2) ipod touch 5G--> stock lightning cable -->Ventrecraft -->oyadie3.5 to 3.5 cable-->O2 -->ACS T15 | ER4S
case 3)ipod video (wolfson verson)-->Fiio L9-->arrow4G-->ACS T15 | ER4S.
case 4) ipod touch 5G stock
case 5)PC-->ODAC-->oyadie 3.5 to 3.5 -->arrow 4G-->ACS T15 | ER4S
case 6) PC-->ODAC-->oyadie 3.5 to 3.5-->O2-->ACS T15 | ER4S
Why ACS T15 and ER4S?
I find ACS to be relatively sensitive and it is not overly sensitive. I use this to check for channel imbalance and hissing issues
I use ER4S as I know its sound well, i love its sound characterstic and it is one of the most used and well known industry standard IEM.
case 1 vs case 2
O2 improves the detail and resolution a lot. The gain issue of venture craft is gone and I can use my ACS by having the O2 around 8-9 which is my reguler listening level. ACS at this condition has amazing bass quantity, the treble is nice and crisp and it seems arrow4G was the cause.
Not audible hiss is present
case 1 vs case 3
To my ears this two set up are very much identical in soud. ER4S sound a lot better using arrow 4G as the treble and bass switch gives the bass which ER4S needed for most jazz and modern music and the treble switch increase the resolution. Why I liked the 4G treble and bass switch is that when used with ER4S nothing is exaggerated, it adds just the right amount of bass and treble. I am not a bass head at all.
(case 1 vs case 4) and (case 2 vs case 4)
This one is an easy one, it shouldnt surprise anyone to hear me saying both case 1 and case 2 stomps all over case 4. The reason why I bought and keeping venturecraft is to overcome ipod touch 5G short coming which is its DAC and amp section. I find the new ipod touch DAC boring and its amp is just lacking the required power to make both ACS T15 and ER4S sing. The reason why I kept the ipod is its perfect UI. It is crazy good and there is nothing in the industry which can come close to it.
Please not that ipod touch 5G output impedance is less than 1.
case 1 vs case 5
I perfer case 5 over case 1. ODAC higher (2.0 VRM? ) output gives much more detail across all frequencies. ER4S in case 5 is the best I have heard so far.
case 1 vs case 6
I once again prefer case 6 over case 1. Once again the ODAC is the reason for this.
case 5 vs case 6
I prefer case 5 over case 6 simply because of arrow 4G bass and treble switch. While O2 and arrow 4G make no difference to ACS T15 once again arrow 4G treble and bass boost improved the ER4S quiet a lot.
Buying DD socket 1 for ipod touch 5G is a no brainer if you want to go down the ipod UI portable setup however there are much cheaper and better sounding combination if you want something to use around the house via your laptop, however not been stuck at one spot. Now days you can purchase a laptop with 500 GB of storage for around 300-400 USD .
My review is not really fair as non of the combination above are iDevices DAC. In order to have a fair review I need to compare DD socket 1 against cypher labs product. However reading from the dedicated cypher lab thread cypher labs new updatea seems to have a major issue in terms of matching with certain amps and I need to say they cost a lot more than DD socket 1 stock which is 375 USD (OPA 275 version). Having said that cypher lab extra cost is due to been a PC dac and it comes with a lot more accessories than what we get with venturecraft.
On the other hand what makes venturecraft special is its socket feature. I really welcome this feature and I really hope the future revision keeps this feature. Right now as its stands there is no other product in the market which does this and this is why venturecraft is so special right now.
Sorry for any grammar issue, I will re-read it later, typed it on my tablet so editing is somewhat hard.
Edited by audionewbi - 2/23/13 at 7:27pm