audio-talk

For anyone who is interested, the Helios was Jeff Bagby’s last design and he thought it was his best. His aim was to design a speaker that could compete with, well, anything out there. It uses some great SBA drivers including their Be tweeter in a waveguide, regarded by many as the best tweeter you ...

They look great Steve.

vinylnvalves wrote: Fri May 16, 2025 11:50 am Probably can do both dates…. Will check with Dave if he can go for the 27th as first preference. Not sure what we will bring, as haven’t built anything new for a while. Do have a MEH speaker, that maybe I can bump up the priority list.

Solana Steve ?

I’m looking for a matched pair of these valves, ideally Russian NOS.

I have 2 pairs of chokes for sale. I had these manufactured locally and they have the following specs: 100mH, 3.5A, 0.7 ohms Frame mounted choke using M6/35 Grain Oriented laminations. The only reason I’m selling is that I’m having some higher spec ones made for a slightly different amp.

I am ...

Bit of a long shot but you never know. Need a pair.

So my RTZ DAC now has 5 separate PSs attached and is up and running. I’m using LT3045 / 3094 regs almost everywhere but instead of just using trafos I’m using some Calex LPSs as pre-regulators. I bought the Calexi at knock down prices when they went EOL a few years back, so I figured why not use ...

Bit of a long shot but I know a few people on here have played with these AMTs in the past. Aurum Cantus AST2560 and the Mundorf dipole AMTs are also of interest.

A huge thanks to Tony for doing all that tricky SMD stuff and putting this DAC together for me. Over the next few days I’ll finalise the power supplies and hook it up for a listen. Really looking forward to hearing it

Looks ace Tony, can’t wait

Good to know given I will soon be the owner of an RTZ DAC

is this the Miro design Ray ?

Hi Tony, maybe a new project? Looks interesting. I'll read through the content later.

https://www.diyaudio.com/community/threads/direct-digital-power-dac-ddpd.395974/#post-7272403


I think powerDACs are going to become quite a thing in the not too distant - it’s such a good idea in principle ...

I’ve just found some `Cornell Dublier ones on `mouser. I searched there previously but I must have messed up the search filters.

I’m sure those Mundorf ones are very good, but they are a bit too pricey for me.