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#64726 - 03/11/07 09:09 AM Re: 990 Phono Stage - Low Volume
Woj Offline
Deputy Gunslinger

Registered: 11/03/05
Posts: 13
Loc: Rockford, IL
psyprof1 - Thanks. Wanted to make sure it wasn't my hearing. I was considering trying a stand alone phono preamp to see if I can get some improvement.
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Mitsubishi 55" CRT
Outlaw 990 Pre/Pro
Outlaw 770 Amp
Adcom GFA 6000 Amp
Marantz DV6400 DVD
Toshiba HD-A35 HD DVD
Monster HTS 5100
Monitor Audio S10
Monitor Audio LCR
Monitor Audio RSFX
Monitor Audio S1
Monitor Audio RS12 Sub
Buttkicker LFE

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#64727 - 03/11/07 10:07 AM Re: 990 Phono Stage - Low Volume
BobZoom Offline
Gunslinger

Registered: 01/29/07
Posts: 56
Loc: near Chicago
<>

I listened to The Wall (CD) late last night at -4. There's a decent amount of dynamic range with lots of very loud low frequency signal on this recording. I monitored the Tektronix on the loudest passages and there was no observed clipping. (for those interested, I marked the rail voltages of the mains amp on the scope so I would be able to see when I was approaching that point...it is difficult to tell how close you're getting with the Carver's high rail voltages, though) I then tried Dark Side of the Moon on vinyl, but because I was forced to place the T/T on the floor the bass vibration began causing tracking problems at -8. I was nowhere close to reaching rail voltages with the T/T.

I did realize something one final time. If I have the music on CD or DVD I will not even look for the vinyl. Love of music must be the reason we put up with all that surface noise, record cleaning, blasts from the anti-static gun and regular stylus replacement. It was like some religious ceremony every time we wanted to play some music. No wonder cassette became so popular. And truth be told, 192kbps mp3 blows the best cassette out of the water. And the entire mp3 player is smaller than one cassette! What's all this noise about the good old days? I lived through them. You younger folks didn't miss a thing.

As for live concert listening levels, it's like driving really fast. You get comfortable with it. Just don't over-rev the engine. And no need to watch for Smokey Bear. Ha!
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Outlaw 990; Carver TFM45 (mains); Carver TFM35 (surrounds); Carver TFM24 (bridged for center); Carver TFM15CB (rears); Acoustic Research AR9 mains; Polk CS400I center; Polk FX500I surrounds; Polk FX300I rears; Sony KDS-60A2000; Oppo DV-981HD; MX-850

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#64728 - 03/11/07 11:29 AM Re: 990 Phono Stage - Low Volume
Woj Offline
Deputy Gunslinger

Registered: 11/03/05
Posts: 13
Loc: Rockford, IL
Bobzoom - I like to convenience of CD; however, I sincerely think that true viny recordings are more defined especially on the 180 and 200 gram lp. At least for my ears that is. The hydrids, such as SACD and DVD-A are fantastic and listen to them as well.

You are right about lp's being a pain!

Thanks for the help.
_________________________
Mitsubishi 55" CRT
Outlaw 990 Pre/Pro
Outlaw 770 Amp
Adcom GFA 6000 Amp
Marantz DV6400 DVD
Toshiba HD-A35 HD DVD
Monster HTS 5100
Monitor Audio S10
Monitor Audio LCR
Monitor Audio RSFX
Monitor Audio S1
Monitor Audio RS12 Sub
Buttkicker LFE

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#64729 - 03/11/07 12:01 PM Re: 990 Phono Stage - Low Volume
gband Offline
Gunslinger

Registered: 10/19/05
Posts: 65
Loc: Central NJ
I have an MMF-7 with the goldring Eroica cart. hooked to the 990. Based upon other preamps I have, the 990 seems to be at a much lower level. I'm generally at -10db to equal a CD level @ -20db. I haven't tried an external phono preamp with the 990 yet. But I have one on order for another system, so I'll give it a try. I susprect its just the 990 have about -10db less gain in the phono stage.

However, it does sound very good, just not as loud.

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#64730 - 03/11/07 12:11 PM Re: 990 Phono Stage - Low Volume
psyprof1 Offline
Desperado

Registered: 09/10/05
Posts: 443
Loc: Santa Barbara, CA
Woj, my "changing it for something else is not likely to make your LPs play louder" was about changing the cartridge, not installing a stand-alone phono preamp. If the preamp has a "line-level" output - which I guess you could find in the specs - I guess LPs played through it would sound just as loud as CDs: not having tried one I don't know for sure. For that matter it might outperform the 990's internal preamp in the quality department, since anything with high-end pretensions would probably cost upwards of 500 bucks. Way, way upwards in some cases. It would also occupy one of the 990's auxiliary inputs, which would be no problem if you don't have analog tape but might become one depending on your later acquisitions. How much is better sound from LPs worth to you is the question. Enjoy, regardless.

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#64731 - 03/12/07 08:35 AM Re: 990 Phono Stage - Low Volume
nfaguys Offline
Desperado

Registered: 04/09/05
Posts: 500
Loc: Maine
Forgive me if I missed this above.
Usually a phono input is at a higher level than "line-level" inputs. But from the thread I'm wondering if I can use the phono input to play from a CD player. I no longer use vinyl, so it would be nice. Thanks in advance.
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Living Room:
5.1 Surround and 4channel inline room
990/7700/6-KEF-107s/LFM1 x 2/ SMS Awaiting Trinnov
Millenium dts decoder;Digital Director
Players: Tascam CD01U/SonyCX455 x 3/DV955/BDP83
Old Sony 60" SXRD TV
Zone 2 (also liv-Room: listening to music while Mrs watches TV): Crown SL2 preamp/D40 Amp/Stax Headphones



My "Man-cave":
4 channel-only inline room. No TV (thank heaven)!!!
990/755/4-KEF 107s
Tascam CD01U/dts decoder/digital director
Alesis 16x4x2 mixer
Recorders Alesis HD24/ML9600/Crown CX844s/SonyDAT/Tascam DA38
Ham Radio Shack (KB1STH) ICOM/Yaesu/Drakes x 3

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#64732 - 03/12/07 09:36 AM Re: 990 Phono Stage - Low Volume
taylodr Offline
Gunslinger

Registered: 01/23/07
Posts: 43
Loc: Richmond, VA
I would not suggest it. It does have a higher amplification, and you would probably get distortion if nothing else putting something as high of an output as a CD player on a phono input.
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Outlaw Audio 990
Outlaw Audio 2200 (5)
Monitor Audio RS-6
Monitor Audio LCR
Philips Ambilight 42" HD Plasma
Project Debut III

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#64733 - 03/12/07 09:51 AM Re: 990 Phono Stage - Low Volume
gonk Offline
Desperado

Registered: 03/21/01
Posts: 14054
Loc: Memphis, TN USA
I agree - the phono input is fed through a separate pre-amp that increases the signal significantly, and the signal from a source like a CD player is not what that section is intended to work with.
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gonk
HT Basics | HDMI FAQ | Pics | Remote Files | Art Show
Reviews: Index | 990 | speakers | BDP-93

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#64734 - 03/12/07 10:19 AM Re: 990 Phono Stage - Low Volume
nfaguys Offline
Desperado

Registered: 04/09/05
Posts: 500
Loc: Maine
Thanks gonk & taylodr.
I thought that was the case, as it has been with preamps from the past. However in those preamps the RCA phono inputs usually had shorted plugs in them.
The 990, not having those shorted plugs, caused me to wonder. Thanks again.
_________________________
Living Room:
5.1 Surround and 4channel inline room
990/7700/6-KEF-107s/LFM1 x 2/ SMS Awaiting Trinnov
Millenium dts decoder;Digital Director
Players: Tascam CD01U/SonyCX455 x 3/DV955/BDP83
Old Sony 60" SXRD TV
Zone 2 (also liv-Room: listening to music while Mrs watches TV): Crown SL2 preamp/D40 Amp/Stax Headphones



My "Man-cave":
4 channel-only inline room. No TV (thank heaven)!!!
990/755/4-KEF 107s
Tascam CD01U/dts decoder/digital director
Alesis 16x4x2 mixer
Recorders Alesis HD24/ML9600/Crown CX844s/SonyDAT/Tascam DA38
Ham Radio Shack (KB1STH) ICOM/Yaesu/Drakes x 3

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#64735 - 03/12/07 03:40 PM Re: 990 Phono Stage - Low Volume
psyprof1 Offline
Desperado

Registered: 09/10/05
Posts: 443
Loc: Santa Barbara, CA
One more reason not to use a phono input with ANY device that has a line-level (around one volt) output, if the 200-to-1 voltage mismatch isn't enough, is that phono preamps are equalized in conformity with the industry-standard RIAA disc recording curve, which greatly boosts treble and cuts bass, for vary valid reasons I won't go into here. The equalization applied by the phono preamp circuit corrects this to a flat output by (duh!) cutting the treble and boosting the bass. So the resulting sound from a line-level signal fed into a phono preamp circuit would be (1) distorted from monstrous overload, and (2) unlistenable, beyond the ability of any commercial equalizer to correct. That ought to be enough.

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