AVR Hack for Pre- outs. Had been simply wondering in case it is feasible to hack an AVR without pre-outs to supply preamp sign become given to a outside amplifier.

AVR Hack for Pre- outs. Had been simply wondering in case it is feasible to hack an AVR without pre-outs to supply preamp sign become given to a outside amplifier.

Well-Known User

Had been simply wondering if it’s possible to hack an AVR without pre-outs to supply preamp sign become given to an amplifier that is external. After some R& D came over the following 2-3 options 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 down to an unused RCA port on the rear of the AVR. Nevertheless thinking about the cost of an AVR it is hard for many people to utilize this method though it can be simply be achieved by FMs with some tinkering experience. The effect would be the just like having pre-outs to an otherwise sealed AVR.

2. Utilize a advanced level – Low degree converter: this might be something that is used in automobile sound in order to connect an amp that is external a factory fitted vehicle amp without pre amp outs. The converter essentially converts the wattage that is high sign to low wattage signal which are often safely fed to a different amplifier. Nevertheless i’m maybe not certain that this product intended kinkyads support for automobile sound are capable of a big wattage sign originating from an AVR designed for center/ FL/FR (do not mind the application of technical terms such as for example wattage since I do not are part of “that” industry)

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 may seem like a viable choice. The only requirement will be compared to a XLR to RCA converter to feed the production into the RCA ins of the energy/ integrated amp.

Whenever we may use some of the 3 techniques above then there will not be a need to purchase costly AVRs (aside from more networks). We are able to just include energy amps and run the show.

There isn’t a lot of material in the approach that is above. If any one of you’ve got tried these methods or have actually remarks on which might work please inform me.

elangoas

Well-Known User

Though i’ve never tried your concept, it appears interesting to include pre-outs to an AVR (if that can be done).. Guess, it might need an experienced individual to achieve that (or) somebody who knows electronic devices really well..

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

Well-Known User

Undoubtedly well well worth a go whether it’s your extra receiver sitting idle. If you don’t, more straightforward to get an older marantz nr series with pre outs and begin experiencing the movies faster.

Amarendra

Well-Known User

Absolutely worth an attempt whether it’s your receiver that is spare sitting. If you don’t, more straightforward 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. It was connected by me towards the front left and front right speaker outs of this Denon 2500H receiver. The outputs associated with the converter had been attached to the RCA ins (CD) for the Rotel RA 10 amplifier. The leading Left and Front Right Speakers were attached to the Rotel’s FL and FR terminals. We disconnected other speakers from the AVR to make certain that i possibly could do a little critical listening and comprehend distortions in noise if any.

I carefully fired up the AVR therefore the Rotel with both dials (volume) at Nil and played a Vinyl by way of a TT linked to the Denon AVR. First we 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 became amazed to be greeted by sweet music. No distortion- humming or hiss of every type. There is a small increase in low end plus some sparkle in the first class. I became amazed by the bass since I had never ever heard my bookshelves create such bass before. Nonetheless it was not overpowering or fatiguing one other frequencies. I became playing music extremely critically yesterday and checking conditions regarding the AVR, Rotel & most significantly the passive converter. The Rotel ended up being somewhat hot across the heatsinks in addition to Denon ended up being warm up somewhat. I became hearing music for pretty much 2 hours from Jagjit Singh to Bob Dylan to Bollywood songs streamed from Amazon music yesterday.

The Rotel remained warm not hot after 2 hrs. The AVR had been warmer but i suppose this is as a result of continuous 2 hrs usage and the converter had been since cool as a cucumber.

Impressions regarding noise in basic:

1. Slight uptick in low frequencies- which included absolutely into the experience. 2. silence that is complete hiss- hum 3. really wide soundstage- often going beyond your presenter width 4. Vocals were crystal clear- in fact in just one of the songs i possibly could feel Kumar Shanu running away from breathing in the bottom end 5. Vocals seemed elevated through the other countries in 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 continues to be with the amp section (cant bypass this unless we start the AVR and bypass the amp) 2. The sign is certainly going through 2 preamps- the Denon plus the Rotel. This may carry on unless we link a charged energy amp.

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

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