I got a passive subwoofer for my home system and my Yamaha receiver expects an active Sub, Now the only thing suits my budget is to use a car amp between my receiver and the Subwoofer but when I checked, there is no On/Off switch to the car amps. After a bit of research I found that REM input switches the amp on and off. I suppose instead of a car battery I can use a 12v AC to DC power adapter to power it using the wall 240v socket which will connect to the + and - terminals of the Amp but what should I connect to the REM terminal so that I can switch the Amp on/off?
Your help would be greatly appreciated.
Thanks in Advance.
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you need another reciever/amp to power that sub, because that denon reciever is designed for a powered sub,. if you have another old reciever/amp laying around, you can connect the sub out from the denon into an auxillary input of any old reciever/amp, (switched to that input) with speaker wires from old reciever/amp to the passive sub
usually subs have outputs 4 ur monitors however if ur sub is active @ ur monitors are passive then you need 2 connect sub 2 ur tape loop with rca connections,usually you use the send signal from ur reciever which would norm connect to ur tape input , if the sub is passive then u connect direct to speaker output on amp then monitors to the sat connections on sub
You should consult the manuals for the receiver and the subwoofer to make sure you haven't connected the sub improperly. If the amp was working normally before you connected the sub, I would look at the sub hookup first. If the sub is a passive type, and you have connected it in parallel with your main speakers, the amp may not be able to handle the extra load. You may have to get another amp to drive the passive sub. If you have an active sub, you may not be using the right input/output connections between the amp and the sub inputs. Or, you may have hooked the sub up in a way that causes the amp to become unstable. Check the manuals. If you can't resolve it, come mback here with a lot more detail about your gear.
As I implied earlier, take a clue from the physical style of connectors for both parts of the subwoofer function in the old and new receivers:
RCA connections are for Line Level signal between components only.
The input (bare wire) at the speaker is for AMPLIFIED signal.
You can't just modify one to fit the other and expect magic to happen. Be glad you didn't do it the other way around and modify an amplified (speaker level) outout into a Line Level input. You likely would have smoked that component.
Your subwoofer is a passive speaker, that is, like any other speaker it needs an amplifier. Many subs are self-powered (amp built-in) and they would mate well with the RCA sub output of the receiver.
Get yourself an Active (self-amplified) Subwoofer and run UN-MODIFIED RCA cables to it, according to its instructions, from the Sub Out of the receiver. Or get an amplifier between your receiver and the sub you have.
The output of the Sony is "signal only" not power. Being "passive" like your sub. What you need is a sub amp, and they are not cheap, 400-600 on average "min". Unless you have a Velodyne 15 or 18, just get an amplified sub, they start around 150 new. Hope this helps
1. It's a passive sub. That means there is no amplifier built into the sub cabinet.2. Those are inductors. They passively filter the highs from the signal going to your sub. 3. It may work with the right adapters from Radio Shack. It would be a cheap experiment. Since the computer sub was 4 ohms and the Panasonic sub is 8 ohms, you are OK. You can always go up in impedance but be careful going lower. That's the quickest way to fry an amp.
Your Panasonic sub has 2 sets of speaker inputs and outputs. My guess is that the driver is a dual voice coil. If it says 8 ohms on the driver, then it is probably 8 ohms per coil. Wire the coils in parallel for a final load of 4 ohms and it will match your computer amp.
Finally, if that doesn't work then you can get an external amp to power the sub. Parts Express carries suitable amps from 25w to 3,000+w. Pick one that fits your budget.
I just got one of these units, the SONY SS-WG990.
The RCA cable is direct conection to the speaker.
It requires external AMP.
The other cable is just for the system switch and LED.
If you just have this unit, all you need is an AMP to
You didn't say is your sub active or passive.If its active first check signal cables from theater system,power line of the sub, it has to be the same phase as the system.If its passive take a voltmeter disconnect the sub from the system and measure for DC voltage on the SUB output on the system when its OFF.If DC voltage is present your amp is damaged.It can also be that the preamp circuit for the sub doesn't mute the input when unit is on stand by and you hear frequency of your power supply (50-60Hz) on the sub
You need an active subwoofer input in your amplifier.Which amplifier you are using? Only latest pioneer amplifiers has active sub input and sub output which can be connected to subwoofer.If you dont have active input then you will have to connect it the way you did in old player.