Question about Sony STR-DE875 Receiver

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Sub Out Hi,My subwoofer doesn't engage until the volume is quite loud. Is there a way to increase the output at the sub preamp out? Thanks.

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Re: Sub Out - Sony STR-DE875 Receiver Audio & Video Receivers

Have you adjusted your subwoofer?

Posted on Dec 02, 2007

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I have the following setup: AV Receiver: Pioneer

Very common problem with today's receivers. Receivers made today don't have a true preamp section in the amplifier and do not amplify the sound to the extent of an older receiver. I have large 15" front speakers on my system, and have stuck with my 15 year old receiver just because I know that a new receiver will not have the power to drive them well. Many of the newer receivers need to be turned up to 50-60% before you can even hear anything from the speakers.

Aug 08, 2013 | Pioneer Audio & Video Receivers

5 Answers

Broken connector in subwoofer connection on receiver

The only thing you do is to open your receivers,then locate the output connector if you see the female RCA jack ,then push it out the broken piece ,that's it

Jul 27, 2008 | Audio & Video Receivers

2 Answers

I have the Subwoofer plugged into the output and have it turned ON but it's still not working!

It only drives a self-powerd sub.

The manual...

Page 17:

Setting the Subwoofer Information

Register whether you have connected a subwoofer or not.

Before you start, remember....

• There is a time limit in doing the following steps. If the setting is canceled before you finish, start from step 1 again.

On the front panel ONLY:

1. Press SETTING repeatedly until "SUBWOOFER" appears on the display.

The display changes to show the current setting.

2. Press CONTROL UP / DOWN to select "YES" or "NO."

• Each time you press the button, the display alternates between "YES" and "NO."

YES: Select this when a subwoofer is connected.

NO: Select this when no subwoofer is used.


You cannot use SUBWOOFER OUT ON/OFF on the front panel (see page 14) and adjust the subwoofer output level (see below) when "SUBWOOFER" is set to "NO."

Then continue with setting its relative level and other things.

Feb 06, 2011 | JVC RX-8010V Receiver

1 Answer

Trying to hook up a velodyne dd 12 sub to the unit. Please direct me to the correct way to do this

I have the same setup. Use 1 pair (Left/Right) RCA to RCA cable. Connect from Velodyne "Input" (left connectors) to Yamaha SubWoofer #1 Preamp output. Make sure you have the sub's volume (left knob from back) very low (full counter clockwise is "Min") until you are setting up the audio balance in your house/room. Set Low Pass cross over to 80Hz, Phase switch to 0, subsonic to 20Hz, X-over to "IN", Power to "auto"
On Yamaha RXV1 remote control, go into speaker setup and turn on Sub and any other speakers you have connected.
Warning!! do not turn up volume near a china cabinet while you are watching a movie. Everything will walk off the shelf.

Jan 31, 2011 | Yamaha RX-V1 Receiver

2 Answers

I own a onkyo skw 980 subwoofer and it just quit. I have only had the system for a month or so. I was listening to music, not loud and the bass (sub) just stopped. No crack, pop, or blown speaker. The...

How are you sourcing the program material to the sub? This TX-V940 receiver doesn't have specific sub support.

=== Just the same...

You need to first determine which is at fault - the sub or the receiver.

Connect the Sub Input to Tape Rec on the receiver (but DO NOT select Tape) and see if the sub reacts to your playing FM, for instance. If it works you need to go back to the receiver and the unknown method you're feeding the sub.

You could also test the sub with a CD player output but use a recording that starts low because you won't have volume control.

Dec 24, 2010 | Onkyo TX-V940 Receiver

1 Answer

Have 1 subwoffer need to hook it up to a 2 channel input

I must assume that you have a "Sub" output from the receiver that you are using. If this is a dedicated Subwoofer that doesn't have it's own power, you are set, all you need to do is use an RCA cable from the Receiver to the Sub. If this is a dedicated Sub without power you will need an appropriate power amplifier to amplify the signal to the Sub. If this is only one Sub you may search for a Mono Amplifier to save money in your search. The connection from the Receiver to the Amp is the same and from the Amp to the Sub is with a wire that is usually 18 Gauge "Zip cord" unless the Sub has it's own cabling. Place the sub in a corner to maximize the power output and move it away from the corner to smooth the output until you like the way the sound works with the main speakers. If it is too loud or too soft most A/V Receivers provide a way to adjust the volume of the Sub. Enjoy the sound when you get it setup the way you like it but don't blow out the neighbors.

Sep 16, 2009 | Audio & Video Receivers

1 Answer


Make sure you have the sub connected to the proper output on the receiver and no connections are damaged.
Then check the gain/level control for the sub. on the receiver...turn it up if it's down.
Make sure that in speaker setup, that you have the selection for a sub turned on.

Jun 14, 2009 | Onkyo TX-SR304 Receiver

1 Answer

Bose Cinemate Subwoofer Output


have you try to increase the output of the amplifier to the subwoofer??

did u select satellites as small option?? otherwise the sub will sound to low!!

and remember to have the more of the subwoofer, the place is vital!!

Good Luck!!

Jan 25, 2009 | Onkyo TX-DS575 Receiver

2 Answers

Subwoofer Connection: Speaker wire to Mono RCA

The easiest solution to use your subwoofer is to buy an amp for it. Any old stereo receiver from a garage sale will probably do just fine.
  1. Connect the mono RCA subwoofer output from your Sony with a 1xRCA-to-2xRCA splitter to both the left and right input of the cheap reciever's tape or aux input
  2. connect both speaker outputs of the cheap reciever to the speaker input on your subwoofer. make sure both black (-) outputs on the reciever connect to the black input on the sub, and the red outputs (+) on the reciever are both connected to the red input on the subwoofer.
  3. make sure the cheap receiver's volume is all the way down. turn your Sony up to about the loudest you'll listen to it. turn up the subwoofer amp until it's loud enough to sound good.
  4. leave the subwoofer amp alone, the Sony volume will all you ever need to touch from now on.

You can even now turn off your subwoofer / adjust the volume easily now!

Oct 30, 2007 | Audio & Video Receivers

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