Guitardave
New member
- Joined
- Jul 8, 2013
- Messages
- 20
2glory, thanks, and enjoy the amp! I am sure break-in will have great benefits! Dave
JOB 225 2-channel Power Amplifier ... update ...
- Thread starter joeinid
- Start date
- Thread Author
- #902
If I am not using the Sweetcord, it's a Shunyata Venom3. I think the Sweetcord is a better match but the Shunyata does a great job. Ha!
I plan on getting an Uberbuss too.
Guitardave
New member
- Joined
- Jul 8, 2013
- Messages
- 20
I looked up the Stage 3 cords. They do look very interesting!
Jack
Active member
Mine is in my main audio system/room along with several others, both Tube and SS, I rotate them through based on mood and the weather. Tubes in the Summer in Florida are not a good thing necessarily unless you want an intimate relationship with the utility company.
- Thread Author
- #906
Same here. Main system and rotate gear.
Jack, if you ever make it down I-75 to Sarasota, let me know. You can swing by for a listen.
Jack
Active member
Will do Mike. Have you ever listened to the Tortuga Audio LDR passives made down the road from you in Coral Springs?
Not yet.
Job only in my system. I have lived in a Podunk town in Missouri for the last 40 years and this is the very first AC amp that I can listen to any time of the day without AC harshness. My ears are very sensitive to that kind of distortion and either had to play my system after midnight or use battery powered amp. It did not make any difference, tube or solid state was harsh here during the daytime hours. I believe the Job was made specifically for me.
If anyone is struggling with AC hash like I was, get yourself a new job.
If anyone is struggling with AC hash like I was, get yourself a new job.
RPM-123
New member
The Job is in my one and only system. BTW - virtually every amp I have owned suffered from some various degrees of hum, likely from DC in the line... until I tried the Job! It is totaly silent. Could be from the DC Servo Control that is designed to avoid any DC offset?
Has anyone done the "mods" on the amp yet?
Yea remove the stool binding posts and clamp the SilverSmith Ribbon to the connect wires. Bet that would squeeze 15% better SQ out of it. Replace RCA connectors with WBT? A few higher end parts inside. Isolation/damping and set the whole board on Sistrum Audio Points.
Audio Magic 4amp small Fast blow fuse.
Rid the power LED.
Any other ideas ? Black gates
Make sure you go out and buy a Stage 3 Kraken AC cable for it!!
Yea remove the stool binding posts and clamp the SilverSmith Ribbon to the connect wires. Bet that would squeeze 15% better SQ out of it. Replace RCA connectors with WBT? A few higher end parts inside. Isolation/damping and set the whole board on Sistrum Audio Points.
Audio Magic 4amp small Fast blow fuse.
Rid the power LED.
Any other ideas ? Black gates
Make sure you go out and buy a Stage 3 Kraken AC cable for it!!
The rationale for the Sweetcord with the Job amp?
As one person said, it seems that JOB uses the grid as it's main power supply and deliberately only incorporates small PSUs in the device, as bigger ones would "slow it down". Goldmund believes that ultra-wide bandwidth is the way to control time domain distortion (which the ear is very sensitive to) but that this width acts in an antagonistic fashion to harmonic/IM distortion tends to increase distortion, unless you have a very refined design (with flat freq response from 0.2hz to 2mhz) like they have perfected over 25+ years.
The Sweetcord seems to work best when NOT used with a power conditioner, but rather just plugged straight into the mains plug. Could this be because of the AC Curator?
https://www.youtube.com/watch?v=tjF2O9lbddg
The new JOB Sweetcord
Most of the Goldmund electronic products, like the disc players, preamplifiers but also the
Video projector and processor benefit from our AC-Curator ™ technology. It consists in a series
of power-supply enhancements that ensure exceptionally smooth, clean power is delivered to
the mechanical drives and circuit boards.
A conventional product like a disc player might use a single power supply transformer (or even
none, using a cheaper switching electronic power supply). The power supply in the best
Goldmund disc players uses 6 transformers and 6 separate regulated precision power supply
circuits. We decouple each unit from the AC line and filter it.
This configuration electrically isolates separately each component from the noise and other
irregularities on the AC line. It also electrically isolates various components of the product from
each other, so that the power demands of one do not affect the others nor pollutes their
supply.
Each separate voltage of the power supply is fully regulated using Goldmund’s proprietary
"Warm Regulator" technology, so the supply voltages within the player do not vary and the
internal components can perform exactly as they were intended to.
Due to the high speed signal cancellation, the technology may not be applied as it is for very
fast power amplifiers, because it would slow down the transient capability of the power amps
connected. However, a simple parallel filtering may be applied without the decoupling
transformer. This is what we do inside the big Goldmund power amplifiers of the Telos Line.
As one person said, it seems that JOB uses the grid as it's main power supply and deliberately only incorporates small PSUs in the device, as bigger ones would "slow it down". Goldmund believes that ultra-wide bandwidth is the way to control time domain distortion (which the ear is very sensitive to) but that this width acts in an antagonistic fashion to harmonic/IM distortion tends to increase distortion, unless you have a very refined design (with flat freq response from 0.2hz to 2mhz) like they have perfected over 25+ years.
The Sweetcord seems to work best when NOT used with a power conditioner, but rather just plugged straight into the mains plug. Could this be because of the AC Curator?
https://www.youtube.com/watch?v=tjF2O9lbddg
The new JOB Sweetcord
Our new JOB 225 is so
accurate and transparent that first users immediately reported their trial of
various Powercords were making a big change in its sound quality. In order to
allow the amplifier to be used at its maximum without a too costly exotic
powercord we address the demand using the famous Goldmund Powercord they allowed
us to copy. The sweetcord incorporates the smallest AC-Curator circuit ever
achieved and share with its prestigious parent the special wire made for
Goldmund by a well-kept-secret factory since 1987. With the standard length of
8'5" and Medical grade plugs, the Sweetcord is a wonderful addition to the JOB
amplifiers, and reasonable cost audio device, as everything made by
JOB.
AC CURATORaccurate and transparent that first users immediately reported their trial of
various Powercords were making a big change in its sound quality. In order to
allow the amplifier to be used at its maximum without a too costly exotic
powercord we address the demand using the famous Goldmund Powercord they allowed
us to copy. The sweetcord incorporates the smallest AC-Curator circuit ever
achieved and share with its prestigious parent the special wire made for
Goldmund by a well-kept-secret factory since 1987. With the standard length of
8'5" and Medical grade plugs, the Sweetcord is a wonderful addition to the JOB
amplifiers, and reasonable cost audio device, as everything made by
JOB.
Most of the Goldmund electronic products, like the disc players, preamplifiers but also the
Video projector and processor benefit from our AC-Curator ™ technology. It consists in a series
of power-supply enhancements that ensure exceptionally smooth, clean power is delivered to
the mechanical drives and circuit boards.
none, using a cheaper switching electronic power supply). The power supply in the best
Goldmund disc players uses 6 transformers and 6 separate regulated precision power supply
circuits. We decouple each unit from the AC line and filter it.
irregularities on the AC line. It also electrically isolates various components of the product from
each other, so that the power demands of one do not affect the others nor pollutes their
supply.
"Warm Regulator" technology, so the supply voltages within the player do not vary and the
internal components can perform exactly as they were intended to.
Due to the high speed signal cancellation, the technology may not be applied as it is for very
fast power amplifiers, because it would slow down the transient capability of the power amps
connected. However, a simple parallel filtering may be applied without the decoupling
transformer. This is what we do inside the big Goldmund power amplifiers of the Telos Line.
Has anyone done the "mods" on the amp yet?
Yea remove the stool binding posts and clamp the SilverSmith Ribbon to the connect wires. Bet that would squeeze 15% better SQ out of it. Replace RCA connectors with WBT? A few higher end parts inside. Isolation/damping and set the whole board on Sistrum Audio Points.
Audio Magic 4amp small Fast blow fuse.
Rid the power LED.
Any other ideas ? Black gates
Make sure you go out and buy a Stage 3 Kraken AC cable for it!!
I got a very significant boost to my Job by doing the following,
1. Footers - I tried a few. Franc Audio Ceramic Disc Classic worked best for me.
2. Fuse - Swapped this out with a Telos Audio QBT-18
3. Power cord - Acrolink 7N-4030II terminated with Oyaide P/C-004 plugs
4. Mad Scientist Audio Black Discus on the positive speaker terminals.
From TweakAudio.com:
The Job 225 is the new Giant Killer in town....see review:
Modding this amp will make this amp simply sublime! Here is an initial list of
the things I am going to try:
1. Change the fuse to an audiophile fuse (Furutech).
2. Remove the steel
plate and bolt from the power transformer and glue the transformer down using
either plywood or pressboard to isolate the transformer from the steel
chassis.
3. Remove the power indicator LED.
4. Damp all the recitfying
diodes with constrainded layer damping material.
5. Damp two regulators on
the circuit board.
6. Damp the main heatsink.
7. Apply WA Quantum chips
to all rectifiers, output transistors and most electrolytic caps.
8.
Removed the stock binding posts and either: run the wires outside the amp and
you can solder directly to them, drill holes next to the binding posts and bring
the wires through these holes and tin the ends of the wires and wrap them around
the outside of the binding post so you are using the binding post as a clamp
only and another option would be just to use a good set of Cardas connectors
(worse sounding option).
9. Change IEC inlet to Furutech
inlet.
10. Install Audiomagic Pulse Gen ZX.
There could be more mods done once I get into it. Pricing and more info
shortly.
The Job 225 is the new Giant Killer in town....see review:
Modding this amp will make this amp simply sublime! Here is an initial list of
the things I am going to try:
1. Change the fuse to an audiophile fuse (Furutech).
2. Remove the steel
plate and bolt from the power transformer and glue the transformer down using
either plywood or pressboard to isolate the transformer from the steel
chassis.
3. Remove the power indicator LED.
4. Damp all the recitfying
diodes with constrainded layer damping material.
5. Damp two regulators on
the circuit board.
6. Damp the main heatsink.
7. Apply WA Quantum chips
to all rectifiers, output transistors and most electrolytic caps.
8.
Removed the stock binding posts and either: run the wires outside the amp and
you can solder directly to them, drill holes next to the binding posts and bring
the wires through these holes and tin the ends of the wires and wrap them around
the outside of the binding post so you are using the binding post as a clamp
only and another option would be just to use a good set of Cardas connectors
(worse sounding option).
9. Change IEC inlet to Furutech
inlet.
10. Install Audiomagic Pulse Gen ZX.
There could be more mods done once I get into it. Pricing and more info
shortly.
I had a great weekend with my audio buddy listening to his Job-KEF LS50 set-up this weekend. IMHO, I could live with this set-up the rest of my life. It had great detail, huge soundstage, and with a lot of emotion. This has to be one of the best buys in audio land today.
We did put in an AMR 20 buck audiophile fuse and heard about a 10-15 percent increase in soundstage with more emotion and clarity. For $20, that was a very nice addition. I have not compared the AMR to any of the other fuses that are out there.
We did put in an AMR 20 buck audiophile fuse and heard about a 10-15 percent increase in soundstage with more emotion and clarity. For $20, that was a very nice addition. I have not compared the AMR to any of the other fuses that are out there.
This is such a Wow amp for the money, all my friends keep giving the same feedback, for example, I got this over the weekend:
My JOB 225 arrived on Tuesday of this week and it has been running in 27/7 since its arrival. I upgraded to fuse and am using Harmonix cables (only because the speaker cables were the only ones long enough to work in the living room) throughout. The sound? Understandably a little hard and brittle out of the box, but the amp starts to settle in nicely with about 24 hours of burn-in (typical for most new components). At 48 hours the 225 becomes amazing, but it continues to get better and better each day (ridiculously so). I've have never heard an amp, regardless of price (my Audio Tekne gear is not chicken feed) sound anywhere near as good as the JOB 225. By the way, J. now has three 225's.
My JOB 225 arrived on Tuesday of this week and it has been running in 27/7 since its arrival. I upgraded to fuse and am using Harmonix cables (only because the speaker cables were the only ones long enough to work in the living room) throughout. The sound? Understandably a little hard and brittle out of the box, but the amp starts to settle in nicely with about 24 hours of burn-in (typical for most new components). At 48 hours the 225 becomes amazing, but it continues to get better and better each day (ridiculously so). I've have never heard an amp, regardless of price (my Audio Tekne gear is not chicken feed) sound anywhere near as good as the JOB 225. By the way, J. now has three 225's.
RPM-123
New member
Hi,
I installed a Synergistic fuse in the 225 and that is a definite improvement in terms of higher resolution, however the biggest improvement came from treating my CDs with "The Essence of Sound" and installing a Cerious Technologies "Nano Reference" power cord. Yowza, the realism is startling! The power cord is only $149 for a 5' footer on AudiogoN. Impressive sonic improvement while leaving the amp intact.
I installed a Synergistic fuse in the 225 and that is a definite improvement in terms of higher resolution, however the biggest improvement came from treating my CDs with "The Essence of Sound" and installing a Cerious Technologies "Nano Reference" power cord. Yowza, the realism is startling! The power cord is only $149 for a 5' footer on AudiogoN. Impressive sonic improvement while leaving the amp intact.