AVR Hack for Pre- outs. Ended up being simply wondering in case it is feasible to hack an AVR without pre-outs to supply preamp sign become given to an amplifier that is external.

Well-Known User

Had been simply wondering when it is feasible to hack an AVR without pre-outs to present preamp sign become given to a outside amplifier. After some R& D came over the following 2-3 choices to take action:

1. Surgery- open the AVR , discover the alert course between preamp and amplifier board and solder a cable through the preamp FL, FR and ground off to an unused RCA port on the back of the AVR. Nonetheless thinking about the cost of an AVR it is hard for many people to utilize this choice even though it can be simply be done by FMs with some experience that is tinkering. The effect could be the just like having pre-outs to an otherwise sealed AVR.

2. Make use of a higher level – Low amount converter: this is certainly a thing that is employed in vehicle sound for connecting a outside amp to a factory fitted automobile amp without pre amp outs. The converter fundamentally converts the wattage that is high signal to low http://besthookupwebsites.net/ferzu-review wattage signal which are often properly given to some other amplifier. Nonetheless i’m maybe not certain that this product designed for vehicle sound are designed for a wattage that is large originating from an AVR designed for center/ FL/FR (do not mind the employment of technical terms such as for example wattage since I have do not are part of “that” field)

3. Make use of an expert converter such as Behringer DI 4000- for about INR 3,900 (for 1 channel) to about INR 9,000 (for 4 stations), this appears like a viable choice. The only requirement will be compared to a XLR to RCA converter to feed the production towards the RCA ins of the energy/ integrated amp.

Whenever we may use any of the 3 techniques above then there defintely won’t be a need to get costly AVRs (aside from more networks). We are able to just include power amps and run the show.

There is not a lot of product from the above approach. If any one of you’ve got tried these methods or have actually responses on which might work please inform me.


Well-Known User

It sounds interesting to incorporate pre-outs to an AVR (if it can be done).. Guess, it can need an experienced individual to accomplish this (or) a person who knows electronic devices perfectly. though we have never tried your concept,.

All the best, and keep us published on which you choose to do..

Well-Known User

Absolutely well worth a go whether it’s your extra receiver sitting idle. If not, simpler to get an older marantz nr series with pre outs and commence enjoying the movies faster.


Well-Known Member

Certainly well well well worth an attempt whether or not it’s your receiver that is spare sitting. If you don’t, simpler to get an older marantz nr series with pre outs and commence experiencing the movies faster.

The passive high to voltage that is low arrived yesterday. We connected it to your front kept and front right speaker outs for the Denon 2500H receiver. The outputs associated with the converter had been attached to the RCA ins (CD) of this Rotel RA 10 amplifier. The leading Left and Front Right Speakers were linked to the Rotel’s FL and FR terminals. We disconnected other speakers from the AVR to ensure i possibly could do a little critical listening and realize distortions in noise if any.

I carefully switched on the AVR as well as the Rotel with both dials (volume) at Nil and played a Vinyl by way of a TT attached to the Denon AVR. First I increased the Denon amount slowly to see then turned up the Rotel to about 9 o clock if there were any temperature spikes anywhere (heat) and. I happened to be amazed to be greeted by sweet music. No distortion- humming or hiss of every kind. There is a small increase in low end plus some glow during the higher end. I happened to be amazed because of the bass since We had never ever heard my bookshelves create such bass before. Nevertheless it was not fatiguing or overwhelming one other frequencies. I happened to be hearing music extremely critically yesterday and checking conditions associated with AVR, Rotel & most significantly the passive converter. The Rotel had been somewhat hot all over heatsinks therefore the Denon ended up being warm up somewhat. I became hearing music for pretty much 2 hours yesterday from Jagjit Singh to Bob Dylan to Bollywood tracks streamed from Amazon music.

After 2 hours, the Rotel stayed hot perhaps not hot. The AVR had been warmer but i suppose this is because of continuous 2 hrs use and the converter ended up being since cool as a cucumber.

Impressions regarding noise in basic:

1. Small uptick in low frequencies- which included favorably towards the experience. 2. silence that is complete hiss- hum 3. extremely wide soundstage- often going outside of the presenter width 4. Vocals were crystal clear- in fact in another of the tracks i really could feel Kumar Shanu operating away from breathing in the bottom end 5. Vocals seemed elevated through the remaining portion of the sound field and I suggest literally- focused but somewhat gaining in height- have no idea should this be good or bad but sounded good.

Cons: 1. AVR remains making use of the amp section (cant bypass this unless the AVR is opened by me and bypass the amp) 2. The signal is certainly going through 2 preamps- the Denon along with the Rotel. This may carry on unless we link energy amp.

I am going to continue steadily to try out this for a lengthier duration and then purchase a different one for the center channel