I switched from a Class-D amp and the change is incredible. The sound is more transparent, the stage is bigger and deeper, and the instruments are more clearly distributed. Before, the sound was also transparent but it was sometimes more exhausting to listen to music. I can now listen relaxed quiet and very loud without it feeling tiring. The bass also fills more defined and the treble not so sharp. All in all, the amplifier has been more than worth it. If one hesitates to tackle the project I can only say it's worth it.
EDIT: I'll make pictures later when I have time.
EDIT: I'll make pictures later when I have time.
I don't know if I'm allowed to post the picture. It is on page 63 in "How to wire an Audio Amplifier". I didn't do it that way either, but I had the option to do it later.
On page 38 it says: The left and right RCA receptacles on the source and receiving equipment will bemounted next to eachother–again, in the interests of minimizing the inter-channel loop area. The signal grounds of the RCAinput sockets are BONDED TOGETHER. The sockets are insulated from the chassis to prevent an internalground loop
On page 38 it says: The left and right RCA receptacles on the source and receiving equipment will bemounted next to eachother–again, in the interests of minimizing the inter-channel loop area. The signal grounds of the RCAinput sockets are BONDED TOGETHER. The sockets are insulated from the chassis to prevent an internalground loop
In my opinion, No.
Use your backplate as is, especially if your building an amp with a dual mono power supply. I haven’t had any issues with input sockets that are not next to each other.
Searching for “cost” in this thread will give you examples. Looks like 1-2K Euro.
https://www.diyaudio.com/community/search/933552/?q=Cost&t=post&c[thread]=385920&o=relevance
https://www.diyaudio.com/community/search/933552/?q=Cost&t=post&c[thread]=385920&o=relevance
I've started pretty much from scratch and have spent around 2k euroos I think. But maybe not a 100% representative. Chassis around 350. Transformers a few hundred depending on size and quality. The electronic components from the BOM,.. I think 350. Cables, posts, switches and stuff depending on what already have I reckon an additional 100.
I plan on using the T-GND Lift board alongside a MicroAudio Cobra SMPS. While it may not be as ideal as a dual mono, I know Cresnet said that he's never had anyone report any issues with crosstalk/interference using a single Cobra to power two channels.
Using the T-GND as the central point in a star config., sending the RCA ground and the SMPS ground both to the T-GND should be ideal in my case, right?
I guess I just hadn't thought of the potential for ground loops between the jacks if I connect them both to the T-GND.
Hi Guy's, has everyone received there boards now and were they received in good condition?
There are a few boards left if anyone is interested.
Please contact @jjs is your in the USA
@fireanimal if your in Canada
Or myself if you anywhere else.
There are a few boards left if anyone is interested.
Please contact @jjs is your in the USA
@fireanimal if your in Canada
Or myself if you anywhere else.
So I had a controlled power-up using a bench power supply at 0.3 A, approximately 29V. Both boards behaved well, no magic smoke. All adjustments within defined values, except part G: both channels, when measured between TP 105 and + rail, and TP 106 to negative rail show approximately 1.47 V, although I use KSC3503 and KSA1381 for Q101 and Q102 respectively.
Is that mean I did something wrong or is it because my power supply is set at 29V +- ?
Is that mean I did something wrong or is it because my power supply is set at 29V +- ?