Consumer-level inputs - Gain settings?

JonFo

I plan to feed the outputs of a consumer level pre-amp into the 4800, going through some Jensen transformers (1:1) first to reduce hum and go from single-ended (RCA) to Balanced (XLR).
I've been feeding a DR260 this way for years quite effectively.

But with my new 4800, we now have more analog gain settings available and was wondering what the members would recommend as a good setting for this configuration.

Any other tips for this type of config would also be welcome.

Thanks,

Gadget

Well, with no idea what the output level of the preamp is, and given a 1:1 transformer I might suggest that you use the input meters to set the gain so that you have somewhere in the area of 9db with a peak of 6db. That should provide sufficient headroom. In most cases with Pro level gear with a crest factor in the +22- +28 db area, I find that when using the GUI to affect changes(the meter balistics are much more accurate than the front panels) that -0-db on the gain control is a good place to start. With consumer gear there are some pieces that have low output, but generally around 12-13 db below pro gear. I would hook it up and get the levels on the input meters as specified above. See how that sounds, and do a little experimenting to see if there is a better solution. The 4800 sounds amazing and using good gain structure procedures will avail you of all the benefits of the processor.

Gadget

JonFo

Thanks Gadget, appreciate the pointers.

I'm still curious about the multiple analog input scale setting the DR4800 has, so I'll start is +16 on input and +8 on output as I do the gain management setup.

The outputs must be routed through resistor banks, as I hear relays clicking in the 4800 when switching output levels in the config panel.

The pre is rated for Std consumer 1V outputs, with an impeadance of 100 Ohms.

JonFo

I got my DR 4800 installed and setup. And man, what a great piece of gear this thing is.

With respect to gain matching, I just love the new selections.

I used 14 dBu on inputs and 12 dBu on outputs and that mates just fine with the consumer gear I have.

Here is a thread on the MartinLogan Owners forum describing my experience and setup of this unit in my high-end home theater:
http://67.19.167.226/~tdacquis/forum/sh ... 543&page=6

The link is to the page where I talk about the DR, but you might want to check-out the whole thing plus some links for details on how I use DR's to do crossovers on my MartinLogan Electrostats.

Gadget

Very nice...I have a much simpler system, but it sound amazing as well...I have a Pioneer Elite receiver with Infinity RS1's and a Sunfire True subwoofer... I also have Nakamichi, and Thorens...but NOTHING like what you have! I spend the majority of my discretionary income on the essentials... MORE POWER... Recording and Live sound gear...I'd love to her that system!

Gadget