Question about Parasound Audio Players & Recorders

1 Answer

Hi, I have an A21 Parasound (just a few months old) that I have powering a pair of 4 ohm Emerald Physics speakers. Today, while playing I noticed a crackling noise for a couple of seconds on the right speakers and then there was a loud click from the amplifier and it switched to standby mode. It does not switch on after that. I checked the speakers and cables with a multimeter and there is no short. I even replaced with a different pair of speakers but the amp still does not switch on from standby mode. Can you tell me what the problem could be? Is it a problem with blown fuses or the relay? Is this something I could fix or would it require sending it to a Parasound service center?. Thanks in advance for your help. Best Regards, Manohar Durai (M) +91-99860 88960

Posted by on

  •  Grubhead
    Grubhead Aug 08, 2010

    If it's just a few months old won't it be covered by the maker, and thus free to repair, otherwise you could finish up with a heavy parts and labour bill?



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,175 Answers

I would contact Parasound direct. It may be a fuse issue.

DC volts may have tried to go out the speaker terminals due to an output amp failure

Posted on Aug 17, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

Please how do i connect a pair of F1 Bose 812 speakers and Subs to a Behringer PMP6000 mixer?

Watch your impedance, when you add speakers the impedance will change. example 8 ohm speaker placed in parallel with another 8 ohm speaker the impedance is 4 ohms, placed in series the it is 16 ohm Me I would place in parallel this mixer should handle 3 ohms


Jun 05, 2018 | Behringer Music

1 Answer

What is the Power supply for the Sony SRS-A21 speakers

count how many batteries it takes,multiply iot by 1.5 and then take that number and that is the voltage of the power supply that you need,1 battery is 1.5 volts 2 batteries is 3 volts 3 batteries is 4.5 volts 4 batteries is 6 volts

Jul 18, 2015 | Sony Audio Players & Recorders

1 Answer

Safe to use 4 speaker with Technics Receiver?

The best thing to do is place a VOM meter to confirm that there are 6 ohm speakers

Nov 21, 2014 | Technics Audio Players & Recorders

1 Answer

How to hook speakers up to a realistic mpa-40

The MPA-40 is a mono public address amp. So it has one speaker output. You select the appropriate socket to suite the speaker type. The 4/8/16 Ohm outs are for various tpyes of Hi-Fi speaker. The 70 Volt is used for muzak in shopping centres, restaurants, and waiting rooms.


If you have a pair of 8 ohm Hi-Fi speakers, you can diasy chain the connections and then use the Com and the 16 Ohm connection.

Daisy chain means you take the wires from a pair of speakers. Connect together the wires going to red on one speaker and black on the other. This now leaves you with two wires going to the other red and black terminals on the speakers, but the ends in your hand are not connected to anything yet. Plug the black in to COM. Plug the red in to 16 Ohm.

The sound from the speakers won't be stereo. It will be mono because that's all the amp outputs. But both speakers will work so long as they're functioning units.

If you have two 4 Ohm home theater speakers then you can do the same trick. 4 + 4 makes an 8 Ohm load. Connect the red to the 8 Ohm output.

Don't be tempted to try to connect to multiple terminals. The amp isn't powerful enough to to run more that one speaker chain.

Hope this helps

Sep 15, 2014 | Audio Players & Recorders

1 Answer

Why does my parasound a21 shuts off intermitently during play

check for heating is device geting very heat if yes then you chould check heatshink

May 18, 2012 | Parasound A 21 Amplifier

1 Answer

I have an Onkyo A-7055 amd want to hook up two speakers. Looks like a dozen connectors in the back of the unit... which ones to use. If I experiment is there a chance I could blow out the unit?

Do you mean you want to connect 2 pairs of speakers, or just 2 speakers like you say in your question? There are 4 pairs of screws on the back of your amplifier on the upper right side of the rear panel near the fuse cap and the AC outlets. Each pair of screws will be connected to one speaker. Your Onkyo can be connected to 4 speakers. If you want to connect only 2 speakers, use the screws labeled "SPEAKER A" and connect the speakers to the left and right channels, and make sure you connect the + speaker wire to the screw with the red marking around it. Connect your other speakers the same way, one speaker per pair of screws.

Nov 15, 2010 | Onkyo Audio Players & Recorders

1 Answer

M-audio Bx8a's one monitor very low volume compared to other.


I Insert a compressor on the stereo buss to protect the speakers from transients and they just loose the woofer everytime.

They cannot be trusted, DONT WAISTE YOUR MONEY.

Sam J.

Chief Audio Engineer

AudioWorkShop Studios

Jul 29, 2009 | M-Audio Studiophile BX8a Speaker

1 Answer

Power up to turn on

Your amp may be on it's way out due to an overload situation. When connecting speakers in parallel, calculate the total impedance (load on the amp) by dividing the ohms of one speaker by the total number of speakers, assuming they’re all the same. When in series, add them up.
If you go below the ohm rating of the amp (say, you connect 4 speakers in parallel and they’re each rated at 4 ohms, the total load is 1 Ohm and amp is rated at 2 ohms), you going to blow the amp eventually. When in doubt, connect in series. You won’t get as much sound, but at least you’ll still have an amp to power them!

In your case, you can use a series/parallel connection. This means using the speakers in pairs. Connect the + of one speaker to the - of another, and use the remaining + and - to connect to the amp, and do the same for the other pair. Make sure you connect each pair exactly the same.

You can try this now and see what happens. Hopefully the amp isn't too far gone and connecting in series/parallel will help, but if it doesn't, then you'll need to get your amp fix and be more careful next time.

Hope this helps, and please rate my advice.
Thank you, and good luck!!

Jan 29, 2008 | AudioBahn 400w E Car Speaker

1 Answer


Make certain that each ouput channel from the unit is driving no more that 4 ohms each. If you have more than one speaker attached to an output then be sure they are wired in series NOT parallel. Two 4 ohm speakers in series is an 8 ohm load and the same two speakers in parallel is a 2 ohm load. If the speakers are dual voice coils then you must treat each voice coil as if it were another speaker when it comes to wiring.

Aug 16, 2007 | iLO XM-MP3-CD Car Stereo

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

393 people viewed this question

Ask a Question

Usually answered in minutes!

Top Parasound Audio Players & Recorders Experts


Level 3 Expert

5554 Answers

Ian Summerfield
Ian Summerfield

Level 3 Expert

502 Answers

Gil Shultz

Level 3 Expert

3382 Answers

Are you a Parasound Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides