It is currently Mon Mar 16, 2020 2:53 pm

All times are UTC - 7 hours



Post new topic Reply to topic  [ 15 posts ] 
Author Message
Post subject: Hrd iii drive quieter then clean
Posted: Sat May 13, 2017 6:22 am
Offline
Hobbyist
Hobbyist

Joined: Sun Dec 19, 2010 4:53 pm
Posts: 41
Hi I have a hrd iii and it seems that the drive chanel is alot quieter then the clean at the same volume. Between 2-3 is this normal


Top
Profile
Fender Play Winter Sale 2020
Post subject: Re: Hrd iii drive quieter then clean
Posted: Sat May 13, 2017 11:18 am
Offline
Rock Icon
Rock Icon
User avatar

Joined: Wed Mar 31, 2010 12:48 am
Posts: 26417
Location: Tombstone Territory
What happens when you engage the "more drive" mode?

Arjay

_________________
"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY


Top
Profile
Post subject: Re: Hrd iii drive quieter then clean
Posted: Sun May 14, 2017 12:34 am
Offline
Hobbyist
Hobbyist

Joined: Sun Dec 19, 2010 4:53 pm
Posts: 41
I get more more drive.


Top
Profile
Post subject: Re: Hrd iii drive quieter then clean
Posted: Sun May 14, 2017 2:05 am
Offline
Rock Icon
Rock Icon
User avatar

Joined: Fri Feb 05, 2010 4:31 am
Posts: 14049
Location: Province de Québec, Canada
...lot quieter...
With nothing plug in ?
Give more infos ; hiss, hum .....


Schematic here;
http://schems.com/bmampscom/fender/HotR ... _Rev-B.pdf


Top
Profile
Post subject: Re: Hrd iii drive quieter then clean
Posted: Sun May 14, 2017 3:58 am
Offline
Hobbyist
Hobbyist

Joined: Sun Dec 19, 2010 4:53 pm
Posts: 41
Guitar strat plugged straight in the front. Not a massive difference but a noticeable difference in my opinion


Top
Profile
Post subject: Re: Hrd iii drive quieter then clean
Posted: Sun May 14, 2017 4:05 am
Offline
Rock Icon
Rock Icon
User avatar

Joined: Fri Feb 05, 2010 4:31 am
Posts: 14049
Location: Province de Québec, Canada
Jimiroberts wrote:
Guitar strat plugged straight in the front. Not a massive difference but a noticeable difference in my opinion


And with nothing plug ?

What do you hear to say clean channel is not quieter ? Hiss ...?


Top
Profile
Post subject: Re: Hrd iii drive quieter then clean
Posted: Sun May 14, 2017 4:21 am
Offline
Hobbyist
Hobbyist

Joined: Sun Dec 19, 2010 4:53 pm
Posts: 41
No I mean when your actually play. The both work it's just the drive chanel seems quieter at the same volume setting. So if u put the volume of the of the clean at 3 and the drive master volume at 3 the clean chanel is louder


Top
Profile
Post subject: Re: Hrd iii drive quieter then clean
Posted: Sun May 14, 2017 4:26 am
Offline
Rock Icon
Rock Icon
User avatar

Joined: Fri Feb 05, 2010 4:31 am
Posts: 14049
Location: Province de Québec, Canada
Jimiroberts wrote:
No I mean when your actually play. The both work it's just the drive chanel seems quieter at the same volume setting. So if u put the volume of the of the clean at 3 and the drive master volume at 3 the clean chanel is louder



Oh I understand ( my poor english ..) more volume on Drive than on Clean Channel.

Look normal to me. Drive mean over drive, more volume.


Top
Profile
Post subject: Re: Hrd iii drive quieter then clean
Posted: Sun May 14, 2017 4:33 am
Offline
Hobbyist
Hobbyist

Joined: Sun Dec 19, 2010 4:53 pm
Posts: 41
No mate the clean chanel is louder


Top
Profile
Post subject: Re: Hrd iii drive quieter then clean
Posted: Sun May 14, 2017 4:52 am
Offline
Rock Icon
Rock Icon
User avatar

Joined: Fri Feb 05, 2010 4:31 am
Posts: 14049
Location: Province de Québec, Canada
Jimiroberts wrote:
No mate the clean chanel is louder


Oups ! Sorry, you are right, you write less volume with Drive :(

Both channels use same tubes.
Drive channel use some transistors, is the issue ?

Clean/ Drive ; Relay contacts switches between different resistors / capacitors


Top
Profile
Post subject: Re: Hrd iii drive quieter then clean
Posted: Sun May 14, 2017 10:21 am
Offline
Rock Icon
Rock Icon
User avatar

Joined: Wed Mar 31, 2010 12:48 am
Posts: 26417
Location: Tombstone Territory
stratele52 wrote:
Both channels use same tubes.
Drive channel use some transistors, is the issue ?


There is no "both channels" on this or any other HR series amps.

It is a single-channel design with THREE OPERATING MODES.

The clean mode uses both halves of one 12AX7 as, respectively, the first and second gain stages. Selecting the "drive" mode engages ONE HALF of a second 12AX7 for additional gain. Switching to the "more drive" mode adds the SECOND HALF of that tube for a total of four gain stages (the third 12AX7 functions as the phase-inverter stage). There are no transistors or IC chips involved.

Arjay

_________________
"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY


Top
Profile
Post subject: Re: Hrd iii drive quieter then clean
Posted: Sun May 14, 2017 10:56 am
Offline
Rock Icon
Rock Icon
User avatar

Joined: Fri Feb 05, 2010 4:31 am
Posts: 14049
Location: Province de Québec, Canada
HRD III specs ;

Wattage: 40 Watts
Effects Loop:Effects Loop (Preamp Out, Power Amp In)
Inputs: Two
Extension Speaker Jack: Extension Speaker Jack
Channels: Three Selectable Channels (Normal, Drive and More Drive) :wink:
Rectifier: Solid State Rectifier
Controls: Presence, Reverb, Master Volume, Middle, Bass, Treble, Drive Select Switch, Drive Volume, Bright Swi
https://www.long-mcquade.com/9997/Guita ... xe-III.htm
______________________________________________
Retroverbial,
You are right about tubes , so V2 could be weak ?

Jimiroberts
Put V2 in V1 socket and V1 in V2 socket, all operation modes will have same volume, quiet :lol:


Top
Profile
Post subject: Re: Hrd iii drive quieter then clean
Posted: Sun May 14, 2017 11:39 am
Offline
Rock Icon
Rock Icon
User avatar

Joined: Wed Mar 31, 2010 12:48 am
Posts: 26417
Location: Tombstone Territory
I don't give a damn what Fender's PR department calls it -- it's exactly as I described. And any design engineer or experienced technician will tell you the same thing.

Arjay

_________________
"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY


Top
Profile
Post subject: Re: Hrd iii drive quieter then clean
Posted: Sun May 14, 2017 11:47 am
Offline
Rock Icon
Rock Icon
User avatar

Joined: Fri Feb 05, 2010 4:31 am
Posts: 14049
Location: Province de Québec, Canada
Retroverbial wrote:
I don't give a damn what Fender's PR department calls it -- it's exactly as I described. And any design engineer or experienced technician will tell you the same thing.

Arjay


I guess it is the sale department write specs ( with pub ) and they don't know anything in electronic real vocabulary :lol:


Top
Profile
Post subject: Re: Hrd iii drive quieter then clean
Posted: Sun May 14, 2017 6:13 pm
Offline
Professional Musician
Professional Musician

Joined: Thu Aug 07, 2014 3:25 pm
Posts: 1023
I looked back at my performance notes on the lll. At frequencies up to 300Hz, the clean Channel is louder. After that it steadily climbs above the clean channel. Those measurements were taken at centered volume and tone settings.
I hadn't really noticed the difference before, but this is a departure from previous HRDX and reissues I have measured. I don't believe it was a modified unit. I would call it an improvement as it focus' more power for the midrange.
I'm not sure how to account for the difference iin bass response in the schematic.
Is the OT the same number as previous versions? That could change it.
There is probably nothing wrong with the unit.


Top
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 15 posts ] 

All times are UTC - 7 hours

Fender Play Winter Sale 2020

Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to: