JVC RX-F10 (Tripath-based)

ooheadsoo · « **Reply #160 on:** 23 Jul 2004, 07:07 pm »

Hm, I'm still not sure all of us are on the same page. Party mode means that the identical front signals are also being sent to the rear channels. This knocks multichannel music/movies out of the picture but it allows us to use the one receiver to biamp because we can send the front signal to the tweeters and the rear signal to the woofers or vice versa, etc.

bobz · « **Reply #161 on:** 23 Jul 2004, 10:23 pm »

I bought an RX-ES1 from Costco and have been burning it in all week. The sound already matches my H-K7200/Parasound 1500 combo played through my Mirage Omni 60s. However, I've noticed a vibration coming from the left rear of the unit accompanied by what sounds like fan noise I can hear from my listening position 8 feet away when the music is soft. This problem occurs upon powering it up so it is not heat related. I've tried other wall outlets and it still occurs.

I tested a display F-10 at Frye's and it did not have the problem. Neither did a display unit at Costco. Thinking I had a defective one, I exchanged the unit at Costco but the new one has the same problem.

I'm thinking this is either a bad batch at Costco or some kind of power conditioning issue in my home. As cheap as the unit is and as good as it sounds, I don't think I'd keep it with the noise. Anybody else have this problem? Any ideas about the possible causes and cures?

TheChairGuy · « **Reply #162 on:** 23 Jul 2004, 10:30 pm »

ooheadsoo,

I think that is what the JVC does. It runs 5 full range signals (no crossover) giving you up to 5 full range channels by setting the speakers to 'Large' room.

As I understand it, this will mean for those that have bi-ampable 2 way speakers, the JVC can be used for them. 100 watts x 4 or 5.

Maybe I'm missing some info that is just not clicking in my head right now, but I think the JVC can drive 4/5 channels, with 100 watts each of non-delayed, full 20-20kHz full range signal.

You would select 'DVD Multi' to do this. It seems further that the Surround L and R (and Center if you need it) can be individually adjusted to match outputs of the 'Main' channels in the DVD Multi mode. So, if for instance, your tweeter is considerably more efficient than your woofer (common), you have up to 10db cut or gain to match the levels.

I have a pair of 2 way speakers here (modded RatShack Optimus LX-8's), with 4 channels needed, but I can only run them active and don't have a 2kHz crossover around to check it out. So I can't check this out to see.

I previously used the Norh MultiAmps to drive them in active state.

In the notes section, on page 31 of the manual under 'Using the DVD Multi playback mode' it says:

Quote

When you select DVD/Multi as a source to play, the selected Surround/DSP mode is cancelled, and the Surround button does not work.

TheChairGuy · « **Reply #163 on:** 23 Jul 2004, 10:37 pm »

Quote from: bobz

I bought an RX-ES1 from Costco and have been burning it in all week. The sound already matches my H-K7200/Parasound 1500 combo played through my Mirage Omni 60s. However, I've noticed a vibration coming from the left rear of the unit accompanied by what sounds like fan noise I can hear from my listening position 8 feet away when the music is soft. This problem occurs upon powering it up so it is not heat related. I've tried other wall outlets and it still occurs.

I tested a display F-10 at Frye's a ...

bobz,

Nothing here like that. In fact, I've not even heard the fan cut in on mine. I still haven't opened it to see if it has one, but I'm gathering that it does. I'm too damn happy with it to bother just yet and don't want to miss een an hour of break-in. It's still slowly breaking in at 1 month.

It's in a well ventilated spot, I don't turn up past 28 or so (90db efficient speakers). I know I would hear fan noise if it was there (my room is about 10x12' and I sit 8' feet away in listening, too) as my old PS Audio Power Plant had one and it drive me (more - teehee) insane.

I also have it powered thru a BPT conditioner (and ERS sheets on top and ZSleeves RFI/EMI zero-gauss chamber tubes on the IC) that does a commendable job of ridding electrical gremlins out of the lines and environment before and after it reaches the JVC.

Rob Babcock · « **Reply #164 on:** 23 Jul 2004, 10:47 pm »

Just so I'm crystal clear (sorry if I'm dense & missed this earlier) is the JVC RX-ES1 have five digital amps for six?

TheChairGuy · « **Reply #165 on:** 23 Jul 2004, 11:13 pm »

Rob,

The RX-ES1sl is 5 channels and a sub output, the RX-F10 has 6 channels and a sub output. We're all trying to figure out any other differences between them.

Being dense ain't a crime, and I have no criminal record as proof.

Man, I got Keb Mo' / Big Wide Grin on and have never heard the lyrics to a few of his tunes before.....it's good stuff on the JVC.

bobz · « **Reply #166 on:** 23 Jul 2004, 11:25 pm »

TheChairGuy,

Thanks for the response.

Yeah, I know what you mean about going crazy from fan noise. I'm not sure it's even a fan issue, but there is a distinct vibration and whirring sound even when it's powered up cold. I'm beginning to think it is a power conditioning issue, as you have a fair amount of protection against the electricity gremlins and I don't.

There may be too few of us with RX-ES1 units on this board to get any sense about whether my complaint is a rare problem or not....heck, I may just keep the unit even with this issue, it might have too much of a bang-for-the-buck factor to return.

TheChairGuy · « **Reply #167 on:** 23 Jul 2004, 11:39 pm »

bobz,

You got any conditioner there?...hook it up and see. You're not evaluating if it sucks the life out of the music, it's just to see if you have electrical gremlins in the line. If a cheap one works to remove the fan related problems you have, a good one or a dedicated line for $200 or so, might do the trick.

Or, you got two shitty JVC's in a row.

bobz · « **Reply #168 on:** 24 Jul 2004, 03:01 am »

TheChairGuy

I've got a $39 AR conditioner on the line, so how good can it be? I might play around with a more expensive conditioner when I get a chance.

I'm inclined to go along with the two-bad-units theory. I could try an F10, but at $100 more, we're not talking about a throwaway unit anymore.

ABEX · « **Reply #169 on:** 24 Jul 2004, 03:15 am »

Take the unit back,get your money and try another Costco. If the problem is there again it would be unusual.

Rob Babcock · « **Reply #170 on:** 24 Jul 2004, 03:57 am »

What's the best price you've found on the 6 ch version of the JVC, Chair Guy? I'm very seriously thinking of buying one & using the 6 channel analog input to use the JVC as an outboard amp to biamp my front 3 speakers.

TheChairGuy · « **Reply #171 on:** 24 Jul 2004, 05:02 am »

Rob,

I think one of the guys (earlier in this mega-thread) found the F10 at $280 somewhere....$100 more than the ES1.

I don't think it was J&R, but you could call them. I've found if you talk to a salesman, tell them that the best price you've found is 'X' they will match it...if you're ready to buy right then and there. As long as it is a few % in difference, I suppose.

I invariably get, 50% of the time, a better price than that listed online at JandR.com by talking to a human.

gary · « **Reply #172 on:** 24 Jul 2004, 12:10 pm »

I got mine from Globalsupersale.com. You have to search for RXF10S (no dash) but it's there. I paid $280 with no tax and free shipping, and it arrived 3 days after I ordered. I did notice that J&R has it for $299 with free shipping, they're a little more established and it might be worth going with them instead, unless you have to pay sales tax.

Gary

vpolineni · « **Reply #173 on:** 24 Jul 2004, 03:26 pm »

gary, does the RXF10S have analog audio outputs? from what i've read, the rxes1sl doesn't. can someone take pictures of the rear of these units?

TheChairGuy · « **Reply #174 on:** 24 Jul 2004, 05:45 pm »

Quote from: vpolineni

gary, does the RXF10S have analog audio outputs? from what i've read, the rxes1sl doesn't. can someone take pictures of the rear of these units?

One of these days I gotta' shoot it, VP...

The ES1sl has tape (VCR) outputs. Is that what you're looking for? While burning in the Exodus amp, I used the JVC's FM section to do a lot of it thru these outputs.

vpolineni · « **Reply #175 on:** 24 Jul 2004, 06:01 pm »

tcg,
i'd appreciate a pic whenever you get a chance. I'm looking for pre-amp outputs to drive a separate amplifier. Would the vcr outputs work like that? It seems that the rx-f10 has separate pre-amp outputs as seen in audiophile gear.

ooheadsoo · « **Reply #176 on:** 24 Jul 2004, 06:08 pm »

Pics or links to pics of both would be greatly appreciated!

Ears · « **Reply #177 on:** 25 Jul 2004, 05:54 am »

Quote from: bobz

I bought an RX-ES1 from Costco and have been burning it in all week. The sound already matches my H-K7200/Parasound 1500 combo played through my Mirage Omni 60s. However, I've noticed a vibration coming from the left rear of the unit accompanied by what sounds like fan noise I can hear from my listening position 8 feet away when the music is soft. This problem occurs upon powering it up so it is not heat related. I've tried other wall outlets and it still occurs.

I tested a display F-10 at Frye's a ...

My f-10 has a fan noise sometimes at idle and the fan flows out the left side of the receiver.

When I first got it, I also noticed a vibration when checking the top for heat, which is from the fan motor, I guess.
I have not noticed it since.

Ears · « **Reply #178 on:** 25 Jul 2004, 03:39 pm »

I beleive the all channel stereo could be used to bi amp stereo speakers or possibly 3 front speakers when using the 6 channel RX-10.

One spec of note is these channels are rated at .08% @ 6 ohm from 40 - 20Hz on both JVC's, which might have something to do whith why the 45 sounds tighter, faster and has more clean output when used on the woofers in bi amp mode than vice-versa. .

I was out of town for a few days, but plan on trying the RX-10 for bi amping and compare it to the 45's party mode.

My Kenwood 7100 arrived friday, but nobody was home to sign for it

Ears · « **Reply #179 on:** 25 Jul 2004, 06:06 pm »

Quote from: vpolineni

Gary (or anyone else for that matter), If i buy this, I plan on taking it to a modder to get binding posts put on for 2 channels and an iec inlet installed for my venhaus flavor 4 pc. I have an idea... let me know if this makes sense. The speakers I'm looking to buy are the new gallo reference 3's. The second set of binding posts are for a passive sub, meaning it can't be fed a full range signal. Could I split the subwoofer out signal and feed that to an amp which would power the subwoofer part of the s ...

The subwoofer IS selectable to xover at 80, 100,120,150 and 200 hz as already reported in this thread several times.

This is valid on ALL channels when small speaker setting is chosen.

As far as splitting the subwoofer out, the only way to know for sure is try it for yourself, but I imagine you could.