Modern Mode

Triaxis, Quad Preamp, Stereo Power series, Recto Preamp

Moderators: Guitarzan, Grandor, ned

Post Reply
Ulf2
Mark I
Posts: 26
Joined: Tue Jun 14, 2016 9:29 am

Modern Mode

Post by Ulf2 » Mon Jan 01, 2018 1:29 pm

I just picked up a 2:100 power amp that I try to pair with my Rectifier Recording preamp.
Obviously, I use the dedicated inputs and have connected the switching cable for the modern mode.
Here's the issue: Everything works until I swtich to channel 2, modern mode. The power amp will drop in volume and output only one stereo channel.
Switching back to Vintage mode, both channels work.
Could there be an issue of the power reconfiguration for modern mode?
Rectifier Recording Preamp, Coliseum 300

MesaMad1378
Mark II
Posts: 56
Joined: Tue Sep 15, 2015 4:49 pm
Location: Gold Coast, Australia

Re: Modern Mode

Post by MesaMad1378 » Tue Jan 02, 2018 11:07 am

Only thing I can see in the schematic is the relays that open when in modern mode, there is circuits taken out and different capacitors in play.

Does it do the same thing with the Recto Recording plugged into the main in with modern on and off?

How are you controlling the Recto Recording? Front jack or the rear?

I have sent you a schematic of the 2:100 via email.

Cheers Brett
Mesa Dual Rectifier, TriAxis, Recto Recording,
2:90, 2:100, SUS-4 16ru Case,
Flux Five, Throttle Box EQ, 5 Band EQ,
Straight Traditional 4x12 Cabs.
And other stuff!!

Ulf2
Mark I
Posts: 26
Joined: Tue Jun 14, 2016 9:29 am

Re: Modern Mode

Post by Ulf2 » Tue Jan 02, 2018 4:20 pm

I didn't check the Recording Out, but the normal inputs. Something seems weird. With the modern switch not being connected, the modern channel sounds fine and the other channels/modes sound distorted, almost like ring modulation. I'll get it to the service. :-(
Rectifier Recording Preamp, Coliseum 300

MesaMad1378
Mark II
Posts: 56
Joined: Tue Sep 15, 2015 4:49 pm
Location: Gold Coast, Australia

Re: Modern Mode

Post by MesaMad1378 » Tue Jan 02, 2018 7:00 pm

Hi Ulf,

Could be preamp valves, here a link to where the valves are that do what

http://forum.grailtone.com/viewtopic.php?f=5&t=39123

The schematic I sent you tells you where the valves in the power amp do what.

Cheers Brett.
Mesa Dual Rectifier, TriAxis, Recto Recording,
2:90, 2:100, SUS-4 16ru Case,
Flux Five, Throttle Box EQ, 5 Band EQ,
Straight Traditional 4x12 Cabs.
And other stuff!!

MesaMad1378
Mark II
Posts: 56
Joined: Tue Sep 15, 2015 4:49 pm
Location: Gold Coast, Australia

Re: Modern Mode

Post by MesaMad1378 » Wed Jan 17, 2018 8:10 am

Hey there Ulf,

Have you got your 2:100 back from Your Boogie Repairman yet?
Mesa Dual Rectifier, TriAxis, Recto Recording,
2:90, 2:100, SUS-4 16ru Case,
Flux Five, Throttle Box EQ, 5 Band EQ,
Straight Traditional 4x12 Cabs.
And other stuff!!

Ulf2
Mark I
Posts: 26
Joined: Tue Jun 14, 2016 9:29 am

Re: Modern Mode

Post by Ulf2 » Wed Jan 17, 2018 10:00 am

Not yet.
Rectifier Recording Preamp, Coliseum 300

MesaMad1378
Mark II
Posts: 56
Joined: Tue Sep 15, 2015 4:49 pm
Location: Gold Coast, Australia

Re: Modern Mode

Post by MesaMad1378 » Thu Jan 18, 2018 8:01 am

Damn.

No news of what’s up with it?
Mesa Dual Rectifier, TriAxis, Recto Recording,
2:90, 2:100, SUS-4 16ru Case,
Flux Five, Throttle Box EQ, 5 Band EQ,
Straight Traditional 4x12 Cabs.
And other stuff!!

Post Reply