JOB 225 2-channel Power Amplifier ... update ...

**joeinid** · January 28, 2016, 06:02 PM

Looks awesome Randy. Such attention to detail as well. Beautiful photos and family. Thank you so much for posting.

Maybe I could hire you to clean up my rack

**Randy Myers** · January 28, 2016, 06:14 PM

Thank you sir for the very kind words! So fly to NY to clean up your rack for you.... ok, we can do that

.... Wire ties are your friend!

**soundArgument** · March 17, 2016, 12:22 PM

I'm using an early Job 225 that is configured for 120 VAC only. I'm moving overseas next month but will sorely miss the 225's sound on my LS50s.

Is anyone interested in trading a dual-voltage 225 for the U.S.-only version? My 225 has light use and no blemishes, and has the original box, manual, etc. I'm happy to cover shipping costs, if needed, plus a couple hundred bucks for the difference in age of the amps. I'm based in Manhattan.

**Mate** · March 17, 2016, 02:38 PM

Originally Posted by soundArgument

I'm using an early Job 225 that is configured for 120 VAC only. I'm moving overseas next month but will sorely miss the 225's sound on my LS50s.

Is anyone interested in trading a dual-voltage 225 for the U.S.-only version? My 225 has light use and no blemishes, and has the original box, manual, etc. I'm happy to cover shipping costs, if needed, plus a couple hundred bucks for the difference in age of the amps. I'm based in Manhattan.

I'll trade my appartment in southern Europe for your place in Manhattan. You can have brand new 225 which I'm about to order, I'll settle with your 225.

**wisnon** · March 17, 2016, 06:00 PM

Originally Posted by soundArgument

I'm using an early Job 225 that is configured for 120 VAC only. I'm moving overseas next month but will sorely miss the 225's sound on my LS50s.

Is anyone interested in trading a dual-voltage 225 for the U.S.-only version? My 225 has light use and no blemishes, and has the original box, manual, etc. I'm happy to cover shipping costs, if needed, plus a couple hundred bucks for the difference in age of the amps. I'm based in Manhattan.

Where are you moving to?

**soundArgument** · March 17, 2016, 08:10 PM

Originally Posted by wisnon

Where are you moving to?

London

**wisnon** · March 18, 2016, 04:21 AM

Originally Posted by soundArgument

London

Step up transformer or ask Job if its possible to send back back to Geneva for the power mod?

**soundArgument** · March 18, 2016, 07:12 AM

Originally Posted by wisnon

Step up transformer or ask Job if its possible to send back back to Geneva for the power mod?

Thank you for those suggestions, Wisnon. I'm suspicious of step-up transformers, but I may well consult with Job. Perhaps it's a simple modification.

**Mate** · March 18, 2016, 03:27 PM

Originally Posted by soundArgument

London

Welcome to Europe!

**sl33py** · September 28, 2016, 04:43 AM

Hi All. Selling my JOB Pre2 and 225 pair if anyone is interested. I love how they sound, but have got into another hobby and since I bought this most recently, I'll miss it the least of the HiFi gear I have. They are in 'As new' condition and run on 240V AC electrical outlets (UK, Australia etc). EU style power cables are included. I'll post it in the classifieds section very soon.

**sl33py** · September 28, 2016, 05:38 AM

Hi All. Selling my JOB Pre2 and 225 pair if anyone is interested. I love how they sound, but have got into another hobby and since I bought this most recently, I'll miss it the least of the HiFi gear I have. They are in 'As new' condition and run on 240V AC electrical outlets (UK, Australia etc). EU style power cables are included. I'll post it in the classifieds section very soon.

**Randy Myers** · September 28, 2016, 04:44 PM

There is a for sale thread near the end of the list of threads. Most people looking at used equipment would look there so your Job equipment would probably be seen better in that section of the forum.

I have found it is usually best to put an asking price and maybe a photo or two, or three

....

**jaaptina** · November 16, 2016, 03:13 PM

New rave review with interesting comparisons.

http://hifiknights.com/reviews/aplif...onics-job-225/

**wklie** · December 14, 2016, 09:54 AM

Bought myself a Christmas present - JOB 225, to be used with STP-SE. Initial impression is that I can now hear more details, and the bass is significantly improved - compared to the inexpensive 300B SET tube amp I was using.

The higher gain requires me to use even lower volume steps of the STP-SE. I have also experienced the degradation below volume 7 of STP-SE as Joe mentioned in another thread.

**joeinid** · December 14, 2016, 10:05 AM

Congratulations!

From 7-8, everything snaps right into focus and just opens up. Both pieces are exceptional, in my opinion, and together make a beautiful system.

Vocals are outstanding with lots of air and 3D. Enjoy!

Originally Posted by wklie

Bought myself a Christmas present - JOB 225, to be used with STP-SE. Initial impression is that I can now hear more details, and the bass is significantly improved - compared to the inexpensive 300B SET tube amp I was using.

The higher gain requires me to use even lower volume steps of the STP-SE, and have experienced the degradation below volume 7 of STP-SE as Joe mentioned in another thread.

**Randy Myers** · December 15, 2016, 01:57 PM

Using the Rothwell attenuators between the STP-SE and the Job 225 helps quite a bit. It gives a -10 DB on the RCA inputs on the amplifier allowing for a little more control and range on the volume control of the W4S. They worked great for me. I actually have a set in the box with my backup cables in case they are ever needed.

I used these with the STP-SE and the Job 225 when I had both a while back. They really helped a lot.

**Jack** · December 15, 2016, 02:49 PM

Peter

I agree with Randy on the Rothwell's they will do the trick.

**Holler55** · April 18, 2017, 04:08 PM

This amp is one that I learned of only through audio Web sites. Been using one about a week. Preamp is passive/active (no gain in either mode) Schitt Saga with 6sn7 and resister switched volume control. It is a very nice sounding and relatively affordable combo.The sound of instruments timbre is what I think the 225 amp does best. It has good detail and bass, but my Rega elicit integrated (2nd version) edges it out on bass. The sound of piano, violin, acoustic guitar and vocals is spot on with the Job 225, dispelling any hardness, harshness or etch. The overall sonic picture is somewhere between B & K st 1400 and Pass labs Aleph 30 amps I've owned, if that makes any sense.....all 3 are well regarded Mos-fet based amps, there's something I prefer about mos-fets versus bipolar transistors, maybe more "tube" like?
It's a really nice sounding amp for the money. The term "giant killer" gets thrown around so much that after some time in the hobby one kind of gets anesthetized and wary of it. I wasn't expecting a 1700 dollar miracle when I ordered the Job, only to get a nice sounding, musical Mos-fet amp, and I think the Job 225 certainly is.

**joeinid** · April 18, 2017, 05:26 PM

Welcome to the forum Holler55, thank you for joining.

I totally agree with you. I have the Job INTegrated and absolutely love it. I often think about the Job monos and love the musicality of my integrated as long as it's fed a good digital signal.

**Randy Myers** · April 18, 2017, 06:09 PM

Originally Posted by Holler55

This amp is one that I learned of only through audio Web sites. Been using one about a week. Preamp is passive/active (no gain in either mode) Schitt Saga with 6sn7 and resister switched volume control. It is a very nice sounding and relatively affordable combo.The sound of instruments timbre is what I think the 225 amp does best. It has good detail and bass, but my Rega elicit integrated (2nd version) edges it out on bass. The sound of piano, violin, acoustic guitar and vocals is spot on with the Job 225, dispelling any hardness, harshness or etch. The overall sonic picture is somewhere between B & K st 1400 and Pass labs Aleph 30 amps I've owned, if that makes any sense.....all 3 are well regarded Mos-fet based amps, there's something I prefer about mos-fets versus bipolar transistors, maybe more "tube" like?
It's a really nice sounding amp for the money. The term "giant killer" gets thrown around so much that after some time in the hobby one kind of gets anesthetized and wary of it. I wasn't expecting a 1700 dollar miracle when I ordered the Job, only to get a nice sounding, musical Mos-fet amp, and I think the Job 225 certainly is.

I agree, the Job 225 was a really nice sounding amp! Unfortunately I was at my experimental stage when I first got back into this crazy hobby. Therefore I moved on to other amps. I would still rank it very high on the amps I have owned... maybe third... the classic ARC tube amp I have is probably better.... and the First Watt is by far my favorite...

I never got a chance to listen to the Job on my MC speakers. I had KEF LS50's at the time.

The First Watt is low powered ultra sound quality amp... so to even mention the Job in the same sentence says a lot to me.

**wisnon** · April 19, 2017, 12:09 PM

Originally Posted by joeinid

Welcome to the forum Holler55, thank you for joining.

I totally agree with you. I have the Job INTegrated and absolutely love it. I often think about the Job monos and love the musicality of my integrated as long as it's fed a good digital signal.

Monos are similar sound but much more power reserve.

Had em on demo for a month with the 225 a year or so ago.

**Devg** · April 19, 2017, 03:12 PM

Anybody compare the Job to the Nords ?

**Jack** · April 19, 2017, 11:24 PM

Dev

I own both but have never done a direct comparison. The Job, which I have owned for over 3 years, hasn't been hooked up in quite a while. I have intended to try it on the Spatial's but never got around to it as it would involve swapping out IC's on both the amps and the subs using adaptors. I just haven't had the urge to get behind that rack and make all the wire swaps. When paired with the right speaker the Job punches many times above it's price range. If I pull the Spatial's out for the upgrade then I may do the swap out then. I probably out to just put the Job up for sale and let someone else enjoy it.

**Devg** · April 20, 2017, 12:29 AM

Thanks Jack. Yes, I was thinking of the Job for the Spatial as well. The TM upgrade for the Spatials sounds very lucrative; I wrote to Clayton but didn't hear back. What preamp did you use with the Job ? It seems to have a very high gain of 35db.

**Jack** · April 20, 2017, 01:03 AM

Dev

I wrote to Clayton too and also didn't hear back. Apparently the only way to get a response from him right now is to call him. The upgrade from the the M3 Turbo S to the Triode Master is supposed to be roughly the difference in the list price and involves the upgrade of the compression driver, changing the wiring to Dueland, changing the woofer wiring from parallel to series and adjusting the parts in the crossover. There may also be the option of changing everything but the woofer wiring so that they stay at 4 ohms which should be better for SS amp users. There is a member on AC that knows Clayton that sent his back last week for the change to TM and will initially be using his LIO. He is going to let me know what he thinks before he decides to buy tube amps and just use the LIO as a preamp. Also Gopher(Fred) from Lampi has owned the M3 Turbo S's for a while and he is going to spend three days with the TM and the ZOTL 40 at Axpona so maybe he will give us an impression of the difference.

As to the preamp for the Job 225, I bought a used W4S STP-SE to use with it and it is a great pairing and much more flexible than the Job preamp. In fact the STP-SE sounds great with every amp I tried it with. Something like the Hattor or the Luminous Audio should also work well. Even one of the new zero gain Schitt preamps should work. The lowest active preamp I had before the W4S was 8db gain and it was too much. You can cheat the process with buying a pair of Rothwell attenuators and lower the gain of the preamp by 10 db. I have a set of both SE and XLR and have heard no difference from inserting them.

**Devg** · April 20, 2017, 01:10 AM

Jack, looks like I should first get the TM upgrade before deciding on the amp. Lot of folks (including Clayton) swear by the ZOTL 40 is a great match for the Spatial. Maybe the TM + ZOTL40 will be a killer combo. Please let me know when you hear back from the AC member (I actually posted there on the TM thread as well).

**Jack** · April 20, 2017, 01:54 AM

Dev

I hope the second option becomes available to make all the TM changes but leave the woofers in parallel wiring for 4 ohms. My Spatial's are in the Family Room which is 22' x 28' x 10' and opens into the Kitchen, Dining Room and Foyer. It would take a tube amp the size of a space heater to power them in that space and the temperature today was 87 degrees in April. Plus I don't want tube amps out in that space. Clayton shows up to this weekend with Red Dragon amps and mine sound just fine with the Nord's or the Nuprime ST-10. That high sensitivity spec he shows is only for the mid-range up. From my experience from trying them with tubes and SS showed me that regardless of the specs they need power to have any sort of bottom end. If you like the sound you are getting now and just want to take advantage of the better compression driver and wiring then wait for him to offer that upgrade. If you want to migrate to tubes then the TM upgrade is for you.

**Randy Myers** · April 20, 2017, 02:01 AM

With the Job you should grab a pair of the Rothwell's. I used them when I had a Job. It helped letting me have a bit more volume control from my preamp. I agree with Jack, you cannot beat the Wyred 4 Sound STP-SE.

**Devg** · April 20, 2017, 02:10 AM

Jack, thanks. Ahh...I see what you are saying - so the two woofers of 8Ohms each are wired in series in TM (and parallel otherwise) ? The Nords sounds very good with enough drive, details and dynamics, I just wish the mids are a bit flesh out. I don't how much improvements are there with M35 over the M25 driver. If I get the ZOTL40, should the TM help ?

**Jack** · April 20, 2017, 02:13 AM

Randy

Now that you have done the DAC upgrade you need to do the preamp upgrade. Maybe he has a Level 2 at the shop that he will let you try against the base model. If Srajen is right then you will be hooked again.

**Jack** · April 20, 2017, 02:25 AM

Dev

I don't know what the improvements are from the 35 over the 25 either until someone that has owned both tells us what they hear. David from AC and Gopher/Fred have enough experience to know the differences. I suspect that with either version or whatever amp you try from my experience the M3's benefit from a pair of subwoofers crossed over at between 40-50 hz. Though my Spatials are fine with no help they come alive with the two ACI's crossed at 40hz. I think they need subs with speed more than absolute bottom. If I had to buy new subs for them it would be Rythmik F-8's.

**Devg** · April 20, 2017, 02:59 AM

Jack, yes a pair of Rythmik are in my radar as well but why not the F12 instead of F8 ? Do you see added benefits going dual ?

**Jack** · April 20, 2017, 09:25 AM

Dev

I've already got a pair of F12SE's in the main system and they are great so I guess I would just like to try the other option. Don't think you can lose either way.

**Randy Myers** · April 20, 2017, 10:04 AM

Originally Posted by Jack

Randy

Now that you have done the DAC upgrade you need to do the preamp upgrade. Maybe he has a Level 2 at the shop that he will let you try against the base model. If Srajen is right then you will be hooked again.

You are right Jack. I am planning on looking into the Stage 2. Hopefully my next move after getting headphone amplifier taken care of. I believe that I am wasting the Benchmark using it only as a headphone amp and wasting it's hybrid preamp and new generation ESS DAC chip. We will see how it all unfolds

....

**kdjk5467** · April 29, 2017, 09:15 PM

Found this site searching for information about the Job 225. Pretty sweet! The only time I get to acquire anything close to high end audio gear is when I happen to be in the right place at the right time. I have some decent Klipsch heritage speakers and recently found a Job 225 that is not working for dirt cheap. I bought it in the hopes of getting it fixed and still coming out ahead.

When the amp is turned on, the light in the front illuminates amber (a little brighter for the first instant, then stays slightly dimmer, but on). Nothing seems to be sent to the speakers. I've tried a couple sources.

Is there an internal fuse for the speakers or something? The fuse accessible from the rear for power is fine. I can not get the case off to look inside. As mentioned earlier in the thread, the case screws are teeny hex screws that Thor must have tightened. I have two sets of wrenches, both SAE and metric. None seem to even fit as snugly as I'd like and Yes, I've stripped at least one so far.

If you have gotten this far in my post, do you happen to have any advice before I simply take it in?

Thanks for your time!

-John

**joeinid** · April 29, 2017, 09:27 PM

Welcome to the forum John, thank you for joining.

**Nikhil** · April 30, 2017, 11:58 AM

John,

You need a metric 2.5 mm allen key to open the case.

Regards.

**Holler55** · May 30, 2017, 04:23 PM

The amp does run pretty hot (but not class A hot) when driving harder loads, it gets only very warm when driving an easier load. I Popped the lid and the transformer in this thing is a high quality made in UK toroid of a decent size considering how small the amp is, the power mos-fets are also high quality by EXicon. It is as noted in the manual wanting of careful set up regarding all connecting cord shielding and routing. I opted to flip the Ic connector and use a shielded Volex 90 degree angle plug, which steers the AC cord to right side of amp, well clear of the somewhat cramped rca, speaker, ac connectors on the back of unit. AC is straight to wall. There is only a very low level of hum. It makes nice music.

**jaaptina** · June 6, 2017, 04:08 PM

We now can do suggestions at the Job Facebook page. Any software/hardware update on the INTegrated would suit me. Keeping it abreast with time.

**Glynn1972** · June 27, 2017, 06:49 PM

I took the plunge and also purchased the Job 225. I was considering the Nord but my setup is RCA not XLR and I don't need 400W so I thought I would keep it simple as it sounds like there isn't much sonically between them.
it works great via Inious zen, Naim Dac v1 and Stereo Coffee LDR pre.
my power cables are Cabledyne and neotech 3200 and neotech silver interconnects.
Im impressed so far, but looking at changing my speakers from my modified Monitor Audio 20SE, that I have had for 17 years!
I heard the Kef LS50 at a show and liked their presentation although the bass wasn't as tight or deep as I would like. Maybe Job 225 would tighten them up! Then maybe add a quality sub, or maybe I should stick with a floor stander. Any suggestions will be grateful.
Thanks

**joeinid** · June 27, 2017, 06:56 PM

LS50 and Job is a pretty common pairing and sounds great together. The LS50 are pretty inefficient so respect the volume as to not overdrive the 225.

**Jack** · June 27, 2017, 08:56 PM

Glynn

The bass on the LS50 is going to be what it is and the Job won't change it. I'm not a fan so I think there are plenty of other options depending on your price range and if you are in the US, Europe or Canada. If the KEF is what you want to try you should have no problem finding a used pair for a really good price.

**Holler55** · June 28, 2017, 10:20 AM

I own ls50, job 225 and monitor audio studio 2se (19yrs old). Overall I don't think LS50 is better than the studio series monitor audio from the 90's The studio 2se beats the kef everywhere but deepness of bass. The MA tweeter is better. The kef have more bass, but it can be a bit overblown in some situations, and it is not what I'd call well differentiated in any case, the mids are where ls50 excel. The Job 225 runs quite a bit hotter with ls50 than any of my other speakers. The Rega Elicit (previous model to the current Elicit R) has better bass depth and differentiation than the job 225. The job 225 has better mids and soundstage depth. I don't consider the 225 to be a bass king....I think of it as more of a nicely communicative amp. I would think twice about letting the 20se go right off. Maybe stick them aside and be sure first.

**Glynn1972** · June 30, 2017, 08:54 AM

Thank you for your advice.

Right, my amp has been running for 150 hrs and I'm disappointed.
The Job 225 isn't working with my speakers/ room.
I'm getting too much bass and boom. My 25 year old (modified) Audiolab 8000P has a tighter more controlled bass with less punch that works better with my speakers and room. I don't get it!
midrange detail is superior from the Job.
my MA studio 20se speakers are an issue being rear ported and my room is 13 ft sq so not ideal.
The speakers are on the limit size to room as floor standing but not that big.
maybe I made the wrong choice of amp and should have gone for the Nord!
I have tried positioning the speakers but doesn't make much difference.

**Holler55** · June 30, 2017, 10:57 AM

There 20se would suit a large to medium room. I don't know if any amp is going to fix too much speaker for the room size. I also have a hypex Ucd based class D amp. I think both it and the job are good amps. You might consider a small monitor (with good stands) for your room. Dynaudio emit 10, or one of the smaller monitor audios if you like the MA sound. The LS50 might be worth a try too. All the accolades re the LS50 shouldnt sway you from other considerations. On class D, Some people like UCd better than Ncore, some like Ice or Nuprime. Some like the Job 225 more than any class D. Tryng different configurations of amp and speaker along with whatever sources you use in your listening room is really the best way to find what works well.

**Jack** · June 30, 2017, 12:59 PM

Glynn

I have owned the 225 for over three years and tried it with a least a half dozen speakers both bookshelf and floor standers. Over bearing bass energy is one trait I would never attribute to the 225. If anything it can be lighter in the bottom than other amps. If you think you have a problem with the 225 the bass energy from the Nord amps is a lot more. As you hinted yourself, your biggest problems are too much speaker for that smallish square room and rear ported at that. You could try putting something that would work at an absorber behind the ports and see if that helps or even partially stuff the ports. Ideally a sealed or front ported speaker would work better.

**jaaptina** · June 30, 2017, 03:32 PM

My experience on bass boom... I've got a 3,3 x 4,5 meters room. The 3,3 meters is the listening depth. So I have a bass problem around 55Hz. It shows nicely on measurements with calibrated microphone. The problem became appearent when I upgraded from Penaudio Rebel (55-28000Hz) speakers to Penaudio Cenya (45-28000Hz). More base but also more boomy. I decided I prefered the added base.
I looked at my amplifier next. I owned a Sonneteer Alabaster. Tried a Rega Elex-R but kept the Alabaster. Than I bought the Job INTegrated and sold the Alabaster. I have not regretted that but there is no change in the bass boom.
Just this week I bought PMC twenty 21 speakers second hand. It solves the bass problem. Drastically! I will keep the Cenya's :-)

What helps with a boomy bass is digital parametric EQ. I've used a Beheringer DEQ2496. Replaced that with a bit of EQ using ffmpeg while transcoding the music files on the NAS with Minimstreamer.

**Glynn1972** · June 30, 2017, 04:29 PM

I agree with you all so thanks for the comments. The Audiolab obviously has a leaner bass so the bass issue wasn't as obvious and is famously well suited to the 20se speakers.
I took the Job 225 to my local hifi dealer (Zouch Audio in Ashby de la Zouch - UK)
and tried out a variety of speakers and 3 of them sounded great - Dali Rubicon 6, Proac D20 and Dali Rubicon 2. The Rubicon 2 was my favourite and as a standmounter should work with my room although the rear port could be an issue, also they are 4 ohms so would look at a usb cooling fan on the heat sinks that has been mentioned.
I want to audition the LS50, Proac D2 and PMC 21and 22 and see how they compare, not sure what else yet.

**Glynn1972** · June 30, 2017, 04:32 PM

Originally Posted by Jack

Glynn

I have owned the 225 for over three years and tried it with a least a half dozen speakers both bookshelf and floor standers. Over bearing bass energy is one trait I would never attribute to the 225. If anything it can be lighter in the bottom than other amps. If you think you have a problem with the 225 the bass energy from the Nord amps is a lot more. As you hinted yourself, your biggest problems are too much speaker for that smallish square room and rear ported at that. You could try putting something that would work at an absorber behind the ports and see if that helps or even partially stuff the ports. Ideally a sealed or front ported speaker would work better.

agreed, I also have some absorbers that improve the room slightly but not enough.

**Jack** · June 30, 2017, 04:53 PM

Glynn have you tried stuffing the ports with something like the expanded foam plugs that many subwoofer companies like SVS package with their products. Something similar should be available. If not you can just start with socks. The PMC 22's from either series look like they would do the trick, also if there is a Reynaud dealer anywhere close the Silver Bliss would fit the bill as it is front slotted transmission line book shelf. All of their speakers are front slotted transmission line by design. Another candidate if the sensitivity is not an issue would be the ATC SCM19. Maybe some of the other UK or EU members will pitch in with appropriate models available to you that I would think of.

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