Upgrades to Cal Audio Delta Transport

Delta is a great unit. But, remember it is an orphan so if it breaks and you need a part you may be SOL. They are inexpensive enough that you might buy one and then keep an eye out for a second one to cannibalize as required. Nice small footprint. The companion Cal Audio DACs, Sigma and Alpha, are also excellent units and have tubed outputs.

I purchased a Delta a few months ago and was wondering the same thing. I read through all of the archives at Audio Asylum pertaining to this transport and could find no information about modding it. I believe others have also asked the same question with no responses.

If you're looking for a second one to keep as a spare, I'll be selling mine. I have tried several other transports recently and am currently trying to decide between a CEC and a Vecteur.

The Delta benefits from upgrading it's power supply,output pulse transformers and applying damping to the drive and chassis. It already has very low jitter, so no clock updates ae required.

Best thing to do is upgrade your digital wire and see what happens and use better tubes in the CAL Alpha DAC. Make sure the DAC is isolated from vibration also. These are inexpense options to try first. Borrow some digital cables from your local dealer or buddies. Next, sell the Alpha for a late model Audio Logic DAC 34 that has the upgraded 24/96 chip set in it. You can find them for around $1000 or less. It simply outperforms the CAL and the designer is available for upgrades.

Rcprince did a review of the 34 to the current model here on Agon so you can take his opinioins to the bank.

Happy Listening.