Question about Technics SA-DX930 Receiver

2 Answers

RIAA preamp Do I need a seperate RIAA preamp if I want to connect a turntable without one or does the DX930 have one built in?

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  • Peter Bszrmnyi
    Peter Bszrmnyi Apr 21, 2014

    actually no. I tried it and it does not need a preamp

  • Peter Bszrmnyi
    Peter Bszrmnyi Apr 21, 2014

    Actually no. I tried it and it does not need a preamp.

  • Pennywhistler
    Pennywhistler Apr 21, 2014

    Then why did you ask??



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Just plug the turntable into your phone inputs. If there is next to no volume then you need a preamp because you have a magnetic (low output) cartridge. If you have a piezo type cartridge the output should be enough to drive the amplifier to rated output. Of your unit does not have a phono input I can tell you that it definitely does not have a preamp built in.

Posted on Mar 17, 2014

  • 2 more comments 
  • Pennywhistler
    Pennywhistler Apr 20, 2014

    This is so wrong as to make you cry.

  • richie46 Apr 20, 2014

    The info was correct but there were a few typos. Sorry.

  • Pennywhistler
    Pennywhistler Apr 21, 2014

    I'll just do one -- all PHONO inputs acceot magnetic cartridges ... and have for 60 years. No PHONO input has accepted a piezo cartridge since 1960. If for some reason you have a piezo cartridge (though no one has made them for decades. plug it into a LINE jack.

  • Pennywhistler
    Pennywhistler Apr 21, 2014

    PS - The receiver does have a PHONO input.


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  • 231 Answers

Yes. You need a phono pre-amp connected to one of your line-level inputs.

I've seen them for $20.

Posted on Apr 20, 2014

  • 4 more comments 
  • Pennywhistler
    Pennywhistler Apr 21, 2014

    Whoops! Though teh manufacturer itself does not list a PHONO input as a feature, I saw it listed on a review. So you do not need a separate pre-amp.

  • Pennywhistler
    Pennywhistler Apr 21, 2014

    Whoops! Though teh manufacturer itself does not list a PHONO input as a feature, I saw it listed on a review. So you do not need a separate pre-amp.

  • Pennywhistler
    Pennywhistler Apr 21, 2014

    Add a Comment Sorry I posted incorrect info.

  • Pennywhistler
    Pennywhistler Apr 21, 2014

    Add a Comment Sorry I posted incorrect info.

  • Pennywhistler
    Pennywhistler Apr 21, 2014

    But .... since it obviously has a PHONO input, why on Earth would you need to ask if it has a PHONO input?

  • Pennywhistler
    Pennywhistler Apr 21, 2014

    God alone knows why everything came through twice.



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SOURCE: Connecting sub speaker to technics sa dx930

Yes, if it only has speaker-level inputs it would require an amplifier to properly drive it. Name the sub and maybe we can answer the second question.

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Related Questions:

1 Answer

I have a Yamaha turntable TT-230 that I've just hooked up into a Yamaha RX-V630 receiver but the volume is very low. Will a preamp (of any sort) help solve this?

Yes - you need a RIAA preamp which equalises and amplifies the signal as it had to be encoded for the vinyl recording.

RIAA equalization

They can be cheap to very expensive, Here are a couple from ebay:

riaa preamp

Aug 06, 2016 | Yamaha Audio Players & Recorders

1 Answer

My amp has no phono connection and hardly any sound goes through the aux connection do i need a pre amp or is there something else i can do.

Yes, for a standard phono, you need a "phono preamp" to boost and do "RIAA equalization". They're not expensive:

Jan 11, 2016 | Audio Players & Recorders

1 Answer

Harman Kardon HK 3250 Receiver- how can I connect my turntable? there is no PHONO input

These depends on what model of turntable you have .

On most it can be connected on the inputs you have mentioned ,

If only , a RIAA preamp is included in it.

You may need one, if it doesnt have,

sample phono preamp: Home Page

can also be connected to Aux or Tape

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Denon pma 250SE phono problem

Denon PMA 250SE does not have a RIAA phono preamp.

for some info about these preamp and details here; Home Page

Note: Choose a better quality regulated power supply,

for these preamps.

Although an updated turntable with USB can be used

without the need of such RIAA phono preamp.

Jul 26, 2012 | Denon Audio Players & Recorders

1 Answer

How do I connect my turntable to my HTR-6230 receiver

It always helps when a connection question is asked that you identify all parts of the scenario explicitly.

Depends on whether or not the turntable has an internal PHONO preamp. If it does you can connect it to ANY analog input. Otherwise, you need to get a PHONO Preamp to place between the TT and the HTR.

"PHONO" is the only designated connection on an audio device that is literal and exclusive. Nothing but PHONO will work right on it and old-school turntables would require it to preamplify and frequency-correct the tiny current produced by a Phono cartridge. Look up RIAA equalization.

Sep 14, 2011 | Yamaha HTR6260

1 Answer

I have a Sony direct drive PS-X5 turntable. I have to turn the amp up all the way to hear any sound.

If you're not connecting the TT to a PHONO preamp or a receiver with a built-in PHONO connection the signal from it will be too weak to get any meaningful volume PLUS the RIAA equalization curve required for flat phono playback won't be applied so it will sound very 'tinny'.

Google it.

Get electronics that can handle old-school turntables.

Dec 27, 2010 | Sony PS-LX250 Turntable

1 Answer

Not loud enough, sound is low. plays well but very low sound

Hi, sounds to me like you have got it connected to your amp via an aux or cd input. Turntables need to be connected via phono input. If no phono input is available you need to run it through a mixer or preamp first then into your amp. I recommend you get a good quality preamp with RIAA EQ curve included. I have designed and built our own Styluscity branded preamp. There are cheaper options on the market however when it comes to audio products quality is very much relevant to cost. Cheers john.

Oct 22, 2009 | Gemini XL-100 Turntable

3 Answers

How do I connect a turntable

I agree with 'radio head.'
Turntables require a particular frequency response and the input needs to be correctly equalised to accommodate this. If your amp had phono inputs these would be equalised internally.

Unfortunately, many modern amps no longer have phono inputs. There are two possibly three options.
1) You could obtain a turntable that includes built in Phono eq
2) As 'radio head' says, you can obtain in line active equalisers. These are called RIAA Equalisers (Equalizers if you're in the US) or RIAA preamps. This allows you to plug your turntable into a small box, then plug the box into one of the audio inputs on the back of your amp.
3) You may be able to adjust your mixer to the required frequency response and use it as a preamp.

What you cannot do, regrettably, is just plug your turntable into an ordinary audio input. It will not do any harm if you want to try it and it will make a noise, but you won't like it!

Feb 04, 2008 | Harman Kardon AVR 100

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