Marshall - DRP-1 Direct Recording Preamp

rcustoms · Post by **rcustoms** » 28 Sep 2011, 05:00

HI GUYS ,I FOUND THIS LOST IN SPACE

DRP1 MANUAL.pdf: USER MANUAL; (510.01 KiB) Downloaded 804 times

rcustoms · Post by **rcustoms** » 28 Sep 2011, 05:06

AND THIS

: SCHEMATIC PART 1

: SCHEMATIC PART 2

rcustoms · Post by **rcustoms** » 28 Sep 2011, 05:29

I MADE SCHEMATIC PART 1 SOUND VERY GOOD ,HERE MY OWN RECIPE

SCHEMA.pdf: SCHEMATICS; (25.3 KiB) Downloaded 1048 times

rcustoms · Post by **rcustoms** » 28 Sep 2011, 05:32

A PCB PICTURE

iq01221 · Post by **iq01221** » 28 Sep 2011, 05:37

Very nice pre!! I'm just looking for the headphones in/out sense, and which jacks are fx in/out

rcustoms · Post by **rcustoms** » 28 Sep 2011, 05:48

SEE PDF TOTAL , IN THERE IS YOUR ANSWER,I ONLY MADE THE PRE AMP PART UNTIL NOW, THIS WEEK I TRACE THE REST.I SAW A VIDEO ON YOUTUBE AND HEAR POOR,BUT I FINISH ONE AND LET ME TELL GUYS IS AWESOME.GOOD DRIVE AND DISTORTION TOO

iq01221 · Post by **iq01221** » 28 Sep 2011, 05:54

rcustoms wrote:SEE PDF TOTAL , IN THERE IS YOUR ANSWER,I ONLY MADE THE PRE AMP PART UNTIL NOW, THIS WEEK I TRACE THE REST.I SAW A VIDEO ON YOUTUBE AND HEAR POOR,BUT I FINISH ONE AND LET ME TELL GUYS IS AWESOME.GOOD DRIVE AND DISTORTION TOO

I saw it before post, sorry.

How it works in direct, as amp/cab sim?

rcustoms · Post by **rcustoms** » 29 Sep 2011, 17:10

YOU COULD USE AS DIRECT RECORD PRE AMP ,BECAUSE HE EMULATE A MARSHALL TYPE CAB OR ,PRE AMP PEDAL SOUND AMAZING

Cub · Post by **Cub** » 29 Sep 2011, 19:09

rcustoms · Post by **rcustoms** » 29 Sep 2011, 19:36

??????

DrNomis · Post by **DrNomis** » 29 Sep 2011, 19:40

rcustoms wrote: ??????

Just so you know, when you post something in a forum thread and it's all in capitals, it comes across as shouting....

rcustoms · Post by **rcustoms** » 29 Sep 2011, 22:44

oops,sorry guys

rcustoms · Post by **rcustoms** » 30 Sep 2011, 15:51

deep inside in the web i found,this

dr1.pdf: another pcb; (172.24 KiB) Downloaded 662 times

rcustoms · Post by **rcustoms** » 30 Sep 2011, 15:54

and

darthoverdrive · Post by **darthoverdrive** » 30 Sep 2011, 16:53

How does the preamp sound? Like a Marshall as mentioned in the manual? I thought it was interesting that they say to use the speaker emulator when running it into an amp.

rcustoms · Post by **rcustoms** » 30 Sep 2011, 17:07

the pre-amp part sound for my taste like a marshall touch,the cab emulator,maybe could suffer a mod,like replace this one for (https://www.freestompboxes.org/viewtopic ... v30#p90900)this project with better results,remember a speaker sim is different from preamp sim

Lobo · Post by **Lobo** » 02 Oct 2011, 12:47

YOu can use that one found in the JD10 also, with another tl072. It have some nice sound too.

rcustoms · Post by **rcustoms** » 02 Oct 2011, 18:00

coollllllll.i found jd10 really interesting,i will make a pcb.by th moment see the emulation curve of v30 is surpricing acurate to the original one.

rcustoms · Post by **rcustoms** » 03 Oct 2011, 04:38

another pill,this guy kurt godiksen make a huge analysis between filter section of drp-1 and sansamp gt-2 and frequency responce curve , see the link
http://www.godiksennet.com/wp-content/u ... ctions.pdf

rcustoms · Post by **rcustoms** » 03 Oct 2011, 04:51

using drp1 i virtualize a pre-amp for a guitar amp.
complete drp1 project,look that

DR-1.pdf: (590.43 KiB) Downloaded 863 times

drp1 like amp.pdf: (898.96 KiB) Downloaded 842 times

DRP-1d.pdf: (421.08 KiB) Downloaded 805 times

Marshall - DRP-1 Direct Recording Preamp [schematic]