How to adjust the volume on my BL8000?

8 replies
L(
Offline
lg (archived2)
Bronze
Posted May 29, 2016 at 14:27 GMT
#2063374

I have a pair of BL8000 connected to a non-BO TV using the TV's TOSLINK via a D/A-converter with optical input and RCA-output. The problem now is that I can't adjust the volume. The volume control for the TV apparently has no effect on the signal sent via TOS-link.

Interestingly enough, this "default volume" I get is loud, but not the max volume the speakers can produce, so it is still listenable without earplugs (although I wouldn't want to watch a full movie at this sound level).

Anyway, what device do I need to be able to adjust the volume somewhere in this chain?

kallasr
Offline
kallasr
BronzeFounder
Posted May 29, 2016 at 16:50 GMT
#2063375
You will need some sort of amp using the toslink.

Or check tvs setting if toslink can be controlled, what I doubt....

A headphone socket can be used (tv) with a headphone/mini-jack to rca cable. Maybe not the best sound quality but volume controlled.

Ralf

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L(
Offline
lg (archived2)
Bronze
Posted May 30, 2016 at 14:26 GMT
#2063376

Hmm, you don't know if there exist at "box" with TOSLINK in and out that allows me to manipulate the volume of the TOSLINK signal?

Leosgonewild
Offline
Leosgonewild
Bronze
Posted May 30, 2016 at 15:03 GMT
#2063377
Yes, it is called a preamp 🙂
L(
Offline
lg (archived2)
Bronze
Posted May 30, 2016 at 15:22 GMT
#2063378

A purely digital preamp? Does it exist? Should be possible to achieve in software.

AR
Offline
argentas
Bronze
Posted May 30, 2016 at 15:55 GMT
#2063379

lg wrote:

A purely digital preamp? Does it exist? Should be possible to achieve in software.

Whilst it is possible to adjust the digital levels in software (computers with digital outputs commonly do this) it is not desirable to do so as this also results in a loss of resolution / dynamic range in the process.

A line level pre-amp between the output of your DAC and the speakers, or a pre-amp with a TOSLINK input (instead of your current DAC) would be the preferred options.

Martin.

Location: Exeter, UK

L(
Offline
lg (archived2)
Bronze
Posted May 30, 2016 at 16:41 GMT
#2063380

riverstyx wrote:

Whilst it is possible to adjust the digital levels in software (computers with digital outputs commonly do this) it is not desirable to do so as this also results in a loss of resolution / dynamic range in the process.

24/192 :-)

riverstyx wrote:

A line level pre-amp between the output of your DAC and the speakers, or a pre-amp with a TOSLINK input (instead of your current DAC) would be the preferred options.

Martin.

Any simple you can recommend?

 

Regards

Leosgonewild
Offline
Leosgonewild
Bronze
Posted May 30, 2016 at 20:09 GMT
#2063381
Oh, sorry. I dint read that you wanted to adjust the toslink signal.

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