Use a old pre pro and a modern AVR to get 4volts? - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
Thread Tools
post #1 of 3 Old 11-13-2019, 06:36 AM - Thread Starter
AVS Forum Special Member
lemonslush's Avatar
Join Date: Feb 2013
Location: MA
Posts: 1,932
Mentioned: 85 Post(s)
Tagged: 0 Thread(s)
Quoted: 986 Post(s)
Liked: 476
Use a old pre pro and a modern AVR to get 4volts?

I was curious if this is logical or if its just incorrect. I have pro crown amps that really want a higher voltage input to sing. My av denon 3600 marks them at +12 for level and then I manually up the gains on the amps. They range from half to 75 % depending on my speakers.

Would it be worth picking up say a marantz 7702 that has 7 channel INs. Using the RCA outs from the 3600 to those ins for the 7 channels. Then using the 7702 preouts balanced to my crown amps and getting a full 4 volts.

My speakers are all 95db sensitivity or higher and I really dont need much power to be honest. Or do I say forget it all and just use the internal amps on the 3600 to power the 9 speakers and maybe use my old denon x4000 to power the spare two channels. I figured I could use one of those energy saver control power strips to auto turn the x4000 on.

The system works and sound good as it stands now. I do hear a slight hiss from the noise floor on the amps but I think that would stay the same regardless of what amp I use.

"we need more power" - My Wife.

Theater Build Thread - Wartooth
lemonslush is offline  
Sponsored Links
post #2 of 3 Old 11-14-2019, 08:10 PM
AVS Forum Special Member
Wayne A. Pflughaupt's Avatar
Join Date: Mar 2001
Location: Corpus Christi, TX USA
Posts: 3,241
Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
Quoted: 468 Post(s)
Liked: 390
What Crown amplifier do you have that requires 4 volts?

Wayne A. Pflughaupt

Equipment List
"A nice mid-fi system," according to an audiophile acquaintance.

Reviews and Tech Articles
Wayne A. Pflughaupt is offline  
post #3 of 3 Old 11-15-2019, 12:02 PM
AVS Forum Addicted Member
m. zillch's Avatar
Join Date: Oct 2006
Posts: 13,488
Mentioned: 51 Post(s)
Tagged: 0 Thread(s)
Quoted: 5747 Post(s)
Liked: 4096
I used to sell devices which converted lower voltage preouts into higher voltage preouts of 4V or more. Generically these devices are sometimes called "line amps" or "line drivers". Brands I would recommend include the Phoenix Gold PLD1 and AudioControl units. Although they were meant for car use I'm confident that with a 12VDC wall wart (transformer) they would work fine for home use. [I use other AudioControl gear this way with great success. Don't let the "car" aspect throw you. Their specs show they are state of the art.]

Last edited by m. zillch; 11-15-2019 at 12:08 PM.
m. zillch is offline  
Sponsored Links
Reply Audio Theory, Setup, and Chat

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off