The cables from DCG3 to speakers are approx. 2 m long. Please find attached a few pics taken merely with my iPhone. I know the wiring is a bit of mess, but after all the main thing for me is that the preamp is quiet, so it's hard to find motivation for making it more tidy. Also I run out of silver wire, so I had to put some black coax cable into the mix as well.Great news. Congratulations.
Nice with the LCD-2s as we were confident by their test data they will be driven well even with your milder bias/gain settings and so it went.
But its also nice to know its a success for you in another role too. I.e active monitors line level drive (through long cables in your setup?). Genelec is a very respected Finish company in the recording monitors sector. They are especially good in doing compact ones like that G3 of yours. Which I have listened to. But I also like their big three ways along those from Klein & Hummel. Do post some pics of your finished DCG3 whenever possible if you may.
Attachments
He, he, but its not in the forum''s rules
Off course I did test the PSU before installation. It did not sing when just loaded with 200ohm resistors.
The mechanical noise only appears after connecting it to the real load.
There are no wiring errors... everything was verified.
Andrew, Iam aware of the math. I know I can drive the amp to full power with 3x or 4x. But the f5 is an amp that seems to prefer some preamp gain.
What?
You think it sounds better if you add extra gain to drive the amplifier into clipping !
Been listening to my rig in the main system and now I start do understand it's strengths...
Bass control and detail are on another league compared to my DCB1
Mids are well behaved and voices come out clear and well blended.
As for the highs, these are very good with extension and without harshness.
It sounds better than the gainwire and highs are more fluid.
The extra gain is welcome in my setup.
It lacks the ultimate spatiality I can get with the DCB1 but overall presentation has more guts.
Must find an AD823 (could not find it with legs) so I am using a OPA2604AP
Bass control and detail are on another league compared to my DCB1
Mids are well behaved and voices come out clear and well blended.
As for the highs, these are very good with extension and without harshness.
It sounds better than the gainwire and highs are more fluid.
The extra gain is welcome in my setup.
It lacks the ultimate spatiality I can get with the DCB1 but overall presentation has more guts.
Must find an AD823 (could not find it with legs) so I am using a OPA2604AP
Last edited:
Andrew, I have had everything from a 0db gain (buffer) to 20db gain preamps in front of the f5. My f5 with my speakers likes a little more preamp gain than the math suggests even when playing below clipping levels. Math is one thing, listening is another.
hi Salas,
I finally wrapped mine up today and I'm listening now. Biased to 112 mA, virtually zero DC offset. Big Kudos to Teabag for such a well matched parts kit. I'm loving the sound, very good base control and detail, excellent mids and transparent highs. bests my Aikido preamps, more control and detail. I'm using it with a Pass M2 amp now, great imaging, and depth. Many thanks for another wonderful design.
Paul
I finally wrapped mine up today and I'm listening now. Biased to 112 mA, virtually zero DC offset. Big Kudos to Teabag for such a well matched parts kit. I'm loving the sound, very good base control and detail, excellent mids and transparent highs. bests my Aikido preamps, more control and detail. I'm using it with a Pass M2 amp now, great imaging, and depth. Many thanks for another wonderful design.
Paul
Attachments
Off to a good start then. Well done. Must run in a bit more though and also be tweaked for details since its not the standard mix of elements build. Needing little more imaging? No worries. Its one of its highlights usually, you will nail it.
Two Tx two DCSTB is easier.