Turn Table preamp question...

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MRHP
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Turn Table preamp question...

Post by MRHP » Mon Jul 10, 2017 11:11 am

I found a DUAL-5000 TT at a yard sale last year and need some setup advise. Hooked it up to the system with the Pro-Ject phono pre.

The amps and pre are running more warm than usual. And the sound is a little flat on the top end and the bass is a little bloated and sloppy.

I assume the ohm switches on the phono pre need to be adjusted?....@BrianT?
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BrianT
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Re: Turn Table preamp question...

Post by BrianT » Mon Jul 10, 2017 4:53 pm

MRHP wrote: I assume the ohm switches on the phono pre need to be adjusted?....@BrianT?
Eric

Sounds about right, can you please tell me what cartridge is on it.

Brian
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MRHP
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Re: Turn Table preamp question...

Post by MRHP » Tue Jul 11, 2017 8:48 pm

Okay in its current yard sale condition it has an audio-technical DR300E cartridge.

I have an Ortofon Super OM 10 ready to install and I think it will be an obvious upgrade.
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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MRHP
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Re: Turn Table preamp question...

Post by MRHP » Wed Jul 12, 2017 11:48 am

Here are my options: @BrianT
100 pF
220 pF
100 ohm
220 ohm
22 ohm

It is set on 100 ohm right now.
Would the 220pF be the correct impedance for the Ortofon OM10?
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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Magnaryder
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Re: Turn Table preamp question...

Post by Magnaryder » Wed Jul 12, 2017 1:19 pm

Change the cart and give it a spin then get back with us. We will probably have better advice then

ray
Magnaryder

Its going to be used equipment when I sell it, so it may as well be used equipment when I buy it.

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MRHP
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Re: Turn Table preamp question...

Post by MRHP » Wed Jul 12, 2017 2:12 pm

Okay got the cart changed and it has about the same sound characteristic's. No high end like the tweeters are shut off. And bloated sloppy bass. Got to turn up the volume quite a lot to get any sound.
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

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BrianT
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Re: Turn Table preamp question...

Post by BrianT » Wed Jul 12, 2017 4:39 pm

MRHP wrote:Okay got the cart changed and it has about the same sound characteristic's. No high end like the tweeters are shut off. And bloated sloppy bass. Got to turn up the volume quite a lot to get any sound.
Ortofon Super OM 10 is a Moving Magnet cart, it needs 41 db of gain
so I would set your dip switches
1234 off = load 47K
5 on = 150pf
6&7 off
8 on = 41db gain

If it does not sound right, try and adjust 5 & 6
5 off & 6 on = 270pf
both 5 & 6 off = 50pf

Hope this helps

Brian
VPI Classic Turntable (black)
Transfiguration Phoenix Cartridge
Devialet 440PRO Mono Blocks
Audioprana SP/DIF-AES/EBU cable
Auralic Aires G2 Music Server
Audience AU24 USB cable
B&W 803D3 Speakers (black)
Auditorium 23 Speaker Cables
Raysonic CD-168 CDP (silver)
Carver TX11

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MRHP
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Joined: Wed Jan 18, 2012 2:36 pm
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Re: Turn Table preamp question...

Post by MRHP » Thu Jul 13, 2017 10:05 am

Brian your info looks to be for the Sunfire? Maybe?
Anyway I was still able to use your information and get the ProJect preamp set to the correct position.
WOOT!! And it sounds great! Thanks for the help guys.
TFM-75 serial #0001
PT-2400 serial #0001
Baby Black Magic serial #0001
Baby Black Magic serial #0002
Cherry/260wpc Mono Blocks
Lightstar Reference
Sunfire Series II 625x2
Carver 490t
OPPO-103
Lucas Labs CF-14
Sunfire Tube pre
DENON DP-62L TT
DUAL CS 5000 TT
DQ-20's
Tesla CF-15 speakers
Douglas Cables
OK ERIC, LET GO OF THE MOUSE AND BACK AWAY FROM YOUR PC WITH YOUR HANDS IN THE AIR. NOW SLOWLY LAY FACE DOWN ON THE FLOOR!!!! - Snoop65

User avatar
BrianT
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Posts: 1884
Joined: Sat Oct 11, 2008 4:51 pm
Location: Ottawa, Canada

Re: Turn Table preamp question...

Post by BrianT » Thu Jul 13, 2017 6:58 pm

MRHP wrote:Brian your info looks to be for the Sunfire? Maybe?
Anyway I was still able to use your information and get the ProJect preamp set to the correct position.
WOOT!! And it sounds great! Thanks for the help guys.
Eric

The info i posted was based on the Ortofon using the Project Tube Phone stage.

Glad you got it working.

Brian
VPI Classic Turntable (black)
Transfiguration Phoenix Cartridge
Devialet 440PRO Mono Blocks
Audioprana SP/DIF-AES/EBU cable
Auralic Aires G2 Music Server
Audience AU24 USB cable
B&W 803D3 Speakers (black)
Auditorium 23 Speaker Cables
Raysonic CD-168 CDP (silver)
Carver TX11

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