I am finding that my new 705 has very low headphone volume. I have never experienced this before on any of my Yamaha keyboards. I tried other headphones but the result is the same so its clearly the keyboard. I suspect my keyboard has a faulty DAC on the headphone circuit, but thought I would ask if anyone else has a 705 ( or similar model) and this problem.
Mike
Hi Mike,
I do not own a CVP-705, but I own a Genos and PSR-S970. I know how to resolve your problem of default headphones volume being too low.
Yamaha is very conservative in the master compressor output of its recent products, leading to a misconception that the output of these products is weak.
To enjoy louder output for headphones / speakers, you have to adjust the "Gain" output of the "Master Compressor" as described on P.16 of CVP-709/CVP-705 Reference Manual. The path is Menu -> Mixer -> Master -> Gain:
The default Master Compressor Gain of CVP-705 is +0, which is 'too low' for most owners.
On Genos, the range of Gain for Master Compressor is from 0 to 120, whereas on PSR-S970 is from -63 to +63. I do not have a CVP-705, but I speculate that the range of its Gain for Master Compressor is similar to that of the PSR-S970. You can increase the Master Compressor Gain value until you feel satisfied with the overall volume. I would think that +30 is a good start.
Please bear in mind that the Master Compressor output is pre-Master Volume. You can set the Master Volume of the CVP-705 to 12 o'clock position before tweaking the Master Compressor Gain level, and hit any of the 88 keys repeatedly while increasing the Gain value to test for your desired volume. Then you save this to a User Master Compressor Type "User1".
You can download the CVP-709/CVP-705 Reference Manual here for more information:
https://usa.yamaha.com/files/download/other_assets/1/438241/cvp709_en_rm_a0.pdfThanks,
Paul