Is DEQX a game changer?

I agree with Alan, it gives the opportunity to place the subs in order to manage room nodes better than using just a pair of full range speakers. 

However (I'm not at home to check this at the moment), I'm pretty sure you could not add as much as 1.5 seconds delay to the subs. I believe the max available is in milliseconds so this probably means you could not use them with music.

Question.

Do you find the DEQX output level to be low without increasing the gain on the DEQX control panel?

ozzy

No, the only increased gain I've set via the control panel is volume matching for two subs to main speakers on an HDP-3 slave processor.

The master HDP-5 has no gain adjustment - most listening is within the 'blue' light range on the front display, or 'pink' for higher volume, only occasionally needing 'white' when using a lower output cartridge on a turntable or if I want extreme volume levels. 

drewan,

Interesting, perhaps it is my source (PS Direct Stream Dac) that feeds the DEQX.

ozzy

Hi Ozzy,

I’ve never adjusted the gain on my HDP-5 via the Control Panel, and I believe that increasing the gain via the Control Panel would reduce the headroom that is available for frequency response boosts that may be introduced for purposes of speaker calibration, room correction, or equalizations that may be desired. In turn resulting in the possibility of clipping the output circuits of the DEQX. I believe that would apply to both the analog and digital outputs.

My present amplifier (a Pass XA25) has relatively low gain (20 db), and what I have done to add some gain is to change the internal jumpers in the DEQX which control the voltage range of its analog outputs that I use to drive the amp. See page 166 of the manual. Relative to the default position of the jumpers that results in a 4.9 db gain increase on the single-ended outputs I use, and I’m pretty certain that is accomplished without any sacrifice in headroom. Those jumpers have no relevance to digital outputs, however.

Best regards,
-- Al