Phono stage revealing limitations of cartridge?


Hi,
I just purchased an Ear 834P for my system. This is my first experience with tubes. I hooked it up and I immediately noticed an improvement over the stock phono stage on my integrated. There was a much more three dimensional presentation. However, after listening for a few minutes, I realized the sound was very thin, light on bass, and the highs were bright and grating. Also, the output of the Ear is really high, so much so that the volume knob on my amp is almost all the way at the bottom and moving it very slightly results in a dramatic increase in volume. I'm wondering what is causing the bright sound. Here are the possibilities I've come up with:

1. The Ear 84P is just revealing the limitations of my cartridge which the stock phono stage had just smoothed over.

2. The stock tubes in it have gone bad. (I'm planning on trying out some Jan Philips 5751's on it to see if that lowers the gain a bit.)

3. The unit is defective/the person that modded it screwed something up.

4. I'm getting some very low level RF interference. You can't here it at all when music is playing, but if you turn it up all the way you can hear it. Perhaps this is causing the brightness.

5. The Ear and the Rotel integrated are a mismatch.

I've tried using a different cable from the phono to my integrated and that didn't change anything. I also tried using a different input on the amp. I tried both MM and MC to confirm that I am using MM.

Does anyone have any suggestions? I'd be really grateful if someone could help me get this sorted out. I know there's a lot of questions here, but I thought tubes would result in warmth, not brightness!!!

BTW, my system: VPI Scout/JMW-9, Sumiko Blue Point No. 2 (2.5 mV), Signal Cable Phono Cable, Ear 834P Deluxe Phono Stage (modded but w/ original tubes), Rotel 1062 Integrated Amp, Blue Jeans speaker cables, Infinity 3500 speakers (circa 1981)
sinisterporpoise68
I'm unclear how you're routing the EAR to your Rotel. Are you saying that the Rotel has a phono stage and that you're plugging the EAR into that? If by chance that's the case, that's the problem. The EAR needs to go to a line input. Just checking. In any case, good luck and good listening.
Yes, your cartridge is likely the major culprit at this point. The Blue Point is notorious for lightweight bass, thin and analytical elsewhere.
I own a Blue Point Special, it too has lightweight bass and is somewhat thin elsewhere, and this should be better than the regular Blue Point.
Get something like a Dynavector 10x5, toss that Blue Point!
The EAR and Scout also deserve something better than the Rotel, something like the Cayin integrateds could fit your budget.
To maximize the sound you get from vinyl it is important that the 'chain' be compatible. Chain? Yes, the cartridge, table, arm wiring, interconnect, phono pre-amp. The phono pre-amp, especially all the EAR units present many problems - tube type/make and loading. EAR units are known to be bright, and not because of the tubes. The 'mod' movement has taken over here. In addition, you are now being told that only a new, expensive cartridge will be one of the solutions.

Dump the EAR and get a reasonably priced ARC phono pre amp in the used market.

As reported in Stereophile's review, the 834p has very high gain of 49db in MM, 65db in MC. This in combination with a high-output cartridge like the BP, might be overloading your integrated. You could try cutting gain with a voltage divider comprised of two resistors per channel at the RCA connector.

I'm assuming that the EAR phono stage has been connected to a standard line-level input on the integrated & not to the phono input.
Thanks for all the help everyone. The Ear is connected to the AUX input of of the Rotel, not the phono input, so I'm alright there. From what everyone has said, a mismatch seems quite plausible. The Rotel is definitely on its way out. I was hoping I could get another year out of it, but maybe I can try to do something sooner.

In the meantime maybe I'll try out something from the Dynavector line. VPI seems to like the Dynavector 20X. Does anyone know a store in NYC that carries both VPI and Dynavector and could install the cartridge for me if I just brought in the arm?

Maybe a VPI phono cable would also be in order, since it uses the same wire as in the arm...