Can a preamp's gain be lowered?


I'd like to lower the gain of an AE-3 DJH preamp to something in the neighborhood of 10 dB. Is it possible to do this without adversely affecting the sound?

My ASL amps have an input sensitivity of 1.0 v. I want to have good volume control over low listening levels. I'm afraid any preamp with more than 10 dB will force me to stay under 9 o'clock on the volume knob.
mingles
Mjcmt, I appreciate your info. I've been emailing with Gerald at AES, but his replies have been intermittent and sparse. I haven't tried to call. Maybe I should have done that, but he seems either too busy to answer my questions or not interested in supplying information that doesn't directly lead to a service fee. From my perspective, I think it's a fair question to ask if resistors will be added to the signal path to reduce the gain or if the original circuit will be modified. If I sell the unit, I need to disclose any changes to the buyer.

At this point, I think my best option is to use in-line attenuators and keep the unit in stock form. I have a hunch Cary's mod would be the same thing, but tucked inside the chassis. If I use attenuators, I can change them at any point in time. A mod will be permanent.
Ask them what to do. They really will help if you call and they will recommend what mod to do inside the chassis if you want to do it. They are a bit slow on emails, but are a great source of knowledge if you call.
I just bought a pair of Rothwell attenuators with -10 dB which is perfect for my situation. I think it's the right thing to do given that I can change the attenuation myself at any point in time. Thanks again, Mark
Mboldda1, I recently bought the Goldenjack attenuators from Iain in the UK (the -14dB version), and they allowed me to do away with my preamp and the set of ICs. They are very transparent, and allowed me to maximize the use of my DACT attenuator on my CDP. Highly recommended!