Emile Posted June 30, 2022 Share Posted June 30, 2022 Well, got some new speakers (RB-75's and dual RC-7's) and wanted to add my sub (Dayton 15" with Dayton SA-1000 amp) "back in." NO GO AVR is an Onkyo TX-RZ810; manual is here https://www.intl.onkyo.com/downloads/manuals/pdf/tx-rz810_bas_adv_manual_en.pdf . Subwoofer pre-outs do NOT seem to be working AVR is less than 4 yrs old and don't really want to buy a new one Pic of the back ... Did a lot of trouble shooting to make sure the sub and amp are working. Hooked sub up to L/R pre-out and do get sound - although not "full volume." Hooked it up to "zone-2," and better, but still limited volume. Hooked RB-75's up to sub pre-out (via cheap 50W class D amp) and seemed to get some music, but mostly static noise. So; anyone has any bright ideas/solutions? Many thanks, Emile 1 Quote Link to comment Share on other sites More sharing options...
Emile Posted June 30, 2022 Author Share Posted June 30, 2022 Well, I'll be damned ... hooked the sub up again to sub pre-out and maybe it is working However, volume is pretty low as compared to the test signal which blows me out of the house. Hope it is not an intermittent problem which service centers never find 1 Quote Link to comment Share on other sites More sharing options...
The History Kid Posted July 1, 2022 Share Posted July 1, 2022 Sub Pre-Outs on the AVR's are all the same across the brand. You will be hard pressed to find an AVR with *any* audio out that defines them other than Pre-outs now. Just make sure you're using Sub 1, not Sub 2. The pre-out section may be bad if you are having volume issues and the volume on your dedicated amps is set properly. 1 Quote Link to comment Share on other sites More sharing options...
pbphoto Posted July 1, 2022 Share Posted July 1, 2022 According to the manual (RTFM), those two sub outputs (#6) are identical - intended for dual-sub home theaters. The output coming out of them depends on how you configure the other speakers in the AVR (large vs small, cutover frequency etc). You could have them configured to only output the LFE channel which may explain the spotty output. In other words, they are not a traditional line-out like the "pre/line out zone-2 and zone-3" outputs that output a full-range signal. 1 1 Quote Link to comment Share on other sites More sharing options...
Emile Posted July 1, 2022 Author Share Posted July 1, 2022 12 hours ago, pbphoto said: they are not a traditional line-out Thanks! Yes, already reset speaker crossovers ... used "50Hz" for my front 45Hz RC-7's. Will keep on playing with it Yeah, something is "off;" zone-3 does not work either Darn ... sub is "off" again Quote Link to comment Share on other sites More sharing options...
Emile Posted July 1, 2022 Author Share Posted July 1, 2022 HELP OK; took the rear RB-75's off zone-2 pre-out and connected one directly to "speaker surround" out. Nothing So; tried "surround back," "height," and "speaker zone-2." NOTHING Only works off "center speaker out." (And yes, had it set to 7.1.2 so all outputs should have been working Haha, is my AVR "busted?" Quote Link to comment Share on other sites More sharing options...
The History Kid Posted July 1, 2022 Share Posted July 1, 2022 It really sounds like the pre-section of your AVR is busted. I had the XLR pre-out section of my old pre go bad, so it does happen. 1 Quote Link to comment Share on other sites More sharing options...
Emile Posted July 1, 2022 Author Share Posted July 1, 2022 46 minutes ago, The History Kid said: sounds like the pre-section of your AVR is busted Haha; thanks Yes, just bought a Yamaha RX-V673 to use temporarily I'll take the Onkyo to a repair center and see what they will charge me to fix it - or I'll start shopping Quote Link to comment Share on other sites More sharing options...
Khornukopia Posted July 1, 2022 Share Posted July 1, 2022 32 minutes ago, Emile said: I'll take the Onkyo to a repair center Can you do the INITIAL SETUP procedure to check out the basic settings and functions? There is a slim possibility that something got switched off. 2 1 Quote Link to comment Share on other sites More sharing options...
Emile Posted July 1, 2022 Author Share Posted July 1, 2022 27 minutes ago, Khornukopia said: INITIAL SETUP Just did it No change Only have speaker output on L/R/C Quote Link to comment Share on other sites More sharing options...
OO1 Posted July 1, 2022 Share Posted July 1, 2022 @Emile re install the Firmware over again , the Firmware may be corrupted with can affect some functions , if all fails it's a hardware issue on the main board or on an I/O board 1 Quote Link to comment Share on other sites More sharing options...
pbphoto Posted July 1, 2022 Share Posted July 1, 2022 Yes, or figure out how to do a factory reset of this AVR. google search. 2 Quote Link to comment Share on other sites More sharing options...
Emile Posted July 1, 2022 Author Share Posted July 1, 2022 15 minutes ago, pbphoto said: how to do a factory reset Yes; did a "factory reset." Quote Link to comment Share on other sites More sharing options...
OO1 Posted July 1, 2022 Share Posted July 1, 2022 @Emile https://www.intl.onkyo.com/support/firmware/tx-rz810.html 1 Quote Link to comment Share on other sites More sharing options...
Emile Posted July 1, 2022 Author Share Posted July 1, 2022 @001 Thank you SIR ... updating now; will let you know 1 Quote Link to comment Share on other sites More sharing options...
wvu80 Posted July 1, 2022 Share Posted July 1, 2022 On 6/30/2022 at 3:14 PM, Emile said: and wanted to add my sub (Dayton 15" with Dayton SA-1000 amp) Emil I'm looking at the SA 1000 as a possible problem in terms of setup. I presume you used an RCA M/M to go from AVR sub-out to SA1000 sub-in. From there it should be RCA M/M OUT from either LFE or Red to the sub. I also presume the sub is a DIY with an RCA Female connector. Remember if sealed sub use bass boost at 25 Hz. Ported, no boost. Confirm? Also you might consider using the high level inputs on the SA1000 which many consider the best way to connect to a sub. 1 Quote Link to comment Share on other sites More sharing options...
Emile Posted July 1, 2022 Author Share Posted July 1, 2022 3 minutes ago, wvu80 said: Confirm? Thanks; yes to all Strange thing is that when I do an AVR speaker (sub) test, it blows me out of the room. But, when I play music it is barely audible Think my Onkyo has major problems Quote Link to comment Share on other sites More sharing options...
Emile Posted July 2, 2022 Author Share Posted July 2, 2022 Latest firmware installed; no change Quote Link to comment Share on other sites More sharing options...
carlthess40 Posted July 2, 2022 Share Posted July 2, 2022 Latest firmware installed; no change [emoji20] I sent you a DM 1 Quote Link to comment Share on other sites More sharing options...
wvu80 Posted July 2, 2022 Share Posted July 2, 2022 2 hours ago, Emile said: Strange thing is that when I do an AVR speaker (sub) test, it blows me out of the room. But, when I play music it is barely audible If you've achieved success with the sub for testing then to my way of thinking you've eliminated several variables. Something about the way you describe the problem makes me think way back to the early days of computer sound cards. It seems to me there was one output with an 1/8th inch plug which was used for both the center channel and the sub. Somehow in the computer's software if you chose the wrong setting it would do exactly as you describe, the sub was barely audible. That's so far back, maybe to the 90's I can't imagine any modern AVR having that particular idiosyncrasy. I used to own an Onk 717 but it didn't have any problems outputting to a sub. Is there an Onkyo group you can check out, such as AVSForum.com where others might have experienced the same problem? What is your source? Is it your computer? Edit: Are you connected by HDMI? Do you have a SPDIF optical cable you might try just to eliminate that variable? 1 Quote Link to comment Share on other sites More sharing options...
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