RX-V2090 Bass Output Problem

The output voltage on the secondary appears to be tapped at 22 and 16 VAC.

On my yamaha 375 receiver if I connect digital or hdmi it disables the balance/bass treble etc but they work with anolog don't know if yours might be the same just abit strang if anolog doing it aswell

There is a difference between SUB and LFE. In 5.1 mode, the LFE is the ".1" channel. It will output bass only when audio information signal is addressed to this channel. In stereo mode, depending of the receiver setting, it can output normal bass when front speakers cannot handle low frequency. In setup menu, you'll probably have to set your Front speakers as "Small" to make the sub channel taking the relay in low frequencies. There also can be many other reasons for your problem but this might be the solution. Good luck!

your acoustimas requires you to connect all speakers outputs to it first then to the speakers.

Hi, ok the Bose Acoustimass III system consists of two small cube speakers and one subwoofer unit called the Acoustimass bass module. If the subwoofer stops working, three points can be the cause of the failure. The Bose Acoustimass III is a passive system, meaning the speakers do not power themselves, but instead are connected to a receiver or amplifier. Thus, the amplifier, the speaker between the amplifier and the subwoofer, or the subwoofer itself could be the issue.

Things You'll Need:

* Amplifier
* Speaker cable
* Extra subwoofer


Instructions


Disconnect the speaker cable from the back of the Bose Accoustimass bass module and connect it to a subwoofer that is known to be working. If the subwoofer works, the bass module needs to be replaced.


Disconnect the speaker cable from the back of the receiver or amplifier you are using and from the back of the subwoofer in Step 1.


Connect a speaker cable that is known to be working between the back of the receiver or amplifier and the back of the Accoustimass module. If the module starts working, then the cable was the issue.


Disconnect the speaker cable from Step 3 from the back of the amplifier or receiver, then connect the cable to the subwoofer port on the back of an amplifier or receiver that is known to be working. If the subwoofer works, the receiver was the issue. If the subwoofer still does not work, verify that the speaker cable is in the subwoofer port of the receiver/amplifier and that the cable is connected securely to the subwoofer.



If you think you did the connection properly,Fine... If not you can use the manual from the below link and know how to connect it properly..

products.bose.com/pdf/customer_service/owners/og_am5iii.pdf


Have a nice day..

hi,
if u are using bose speaker system then remember one thing. go to speaker setup and select all the speakers as large not small. then only u will get a good tone. bose speakers will handle the output power of ur amplifier.
u can only adjust the bass and treble of ur frond Channel speakers. for that
select multi channel surround sound and the increase and decrease the bass and treble
ok

your bass box woofer driver is bad. Need to replaced the driver board. There no easy out.

If you have it literally conencted the way you say not much good will happen.

The speaker OUTPUTs for the Yamaha feed the INPUTS on the Acoustimass Module then the satellites branch out of the Acoustimass Module's OUTPUTs.

Acoustimass module
Bose® recommends putting your Acoustimass module at the same end of the room as the
television monitor. To prevent interference, keep the module at least 2 feet (.6 m) from the
television.
• You may hide the Acoustimass module behind or under furniture, but do not block the
opening. Be sure there is at least 2 inches (5 cm) between the opening and any surface.
• If the opening faces the wall it increases the bass; if it faces away it decreases the bass.
For the most bass response, place the opening 2 to 3 inches (5 to 8 cm) from a wall or
corner.
• Stand the Acoustimass module vertically or horizontally (Figure 6). To stand it on the
cable connection end, remove the cover by gently pulling it away

Move the sub closer to a wall or corner to increase the bass.

This is a SYSTEM and as such is not designed to be pieced out or separated. I don't recommend that you try it that way. I doubt it will improve the sound.

Seems there are 2 underlying problems-

no am/fm? are antennas connected? is there static active on any station tuned to?

in terms of low bass response- double check settings both in the receiver and also on the sub itself if any available.

Your Acoustimass 5 is a powered sub with powered surround speakers. If you are not getting sound output, the internal fuse may be open and you will have to replace it. Bose used a heavy multiple output cable terminated in a miniature DIN plug to connect speakers. You may be able to find one on eBay.