Decware Audio Forums
10/03/26 at 06:55:04



Most recent 50 posts
Welcome, Guest. Please Login or Register

Pages: 1
Send Topic Print
DynaGrid Jr Impressions (Read 389 times)
Steve Deckert
Administrator
*****
Offline

If the 1st watt
sucks why continue?

Posts: 6549
East Peoria IL
DynaGrid Jr Impressions
09/29/26 at 03:18:52
 

I realize there is already my original design log thread, and a review thread on this, but there really isn't a simple place to get to the meat of it, which is simply this:  If you have a DynaGrid Jr, 1) what product is it in, 2) what rectifier tube did it replace, 3) what do you hear different.

So far we have built a rather large number of these things and apparently many of the buyers are forum readers but not posters.  

Thanks,

Steve
Back to top
 
 
WWW   IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
Lon
Seasoned Member
****
Offline

"Love without
guts is
worthless!"
Philip K. Dick

Posts: 28886
Munson Township, OH
Re: DynaGrid Jr Impressions
Reply #1 - 09/29/26 at 10:56:15
 
I'll add my info as concisely as I can.

My JR. is serving as the rectifier for my SEWE300B amp.

It replaced several favorite rectifiers, notably a Psvane 274B-Z, and a Linla 274B-D, and an Amperex 5R4WRGB. The Psvane was used most often--a fine rectifier.

What I heard most different from the rectifier in the amp is an increase in clarity and dynamics while maintaining a great frequency balance. I did a lot of tailoring of power and isolation and I have several times reinserted a rectifier into the amp for comparison. . . and gone back happily to the JR.

Back to top
 
 

HR-1,ZBIT,ZROCK3,SEWE300B,Dynagrid Jr;Rega RP3+all GrooveTracer mods;PSAudio:PST+DSD DAC Mk II,NPC,PowerBases,AC-12 pwr cbls, Reference spkrcbls,GCHA;Mapleshade SamsonV3;VeraFi Audio cpts VooDoo:Stradivarius interconnects;Stack EQ; phones:Sennheiser HD800S,ZMF Ori
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
Hearafter
Seasoned Member
****
Online

“In Tubes We Trust”

Posts: 420
SF Bay Area
Re: DynaGrid Jr Impressions
Reply #2 - 09/29/26 at 16:48:01
 
I use my Dynagrid Jr. with my Taboo MkIII.
I have compared the Dynagrid to several rectifiers: GEC U18/20 and Mullard FW4/500 (both with adapter), Stradi 5U4G, Psvane 274-Z, RCA 5R4GY ‘58, RCA 5U4G, Cryotone 5U4G, Sylvania 5U4G.  My preferences are listed in that order. I could be very happy with these rectifiers if I hadn’t  listened to the Dynagrid. Each time I performed a comparison I thought the rectifier sounded good until I installed the Dynagrid.  The Dynagrid just sounds noticably better in every way.  Improved clarity, micro details, imaging, soundstage, fuller sound presence that fills the room and bass clarity and presence.  The Dynagrid has no plans of leaving the Taboo.  

Back to top
 
 

Aric Super 300B SET
Supratek Cabernet Pre
Mojo Mystique X’25 NC DAC
Sonore Sig Rendu SE Dlx
Vera-Fi LNBH, SSZ, MS, SW
Sonido SWR096FC Towers
KEF 62 Sub pair
SDFB-Graphene Slugs
Veritas Cables
Taboo MK3/DGR/GustardR30/Zrock3/DIY ZROBs
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
kulafu
Seasoned Member
****
Offline



Posts: 291
sandy hook, va
Re: DynaGrid Jr Impressions
Reply #3 - 09/29/26 at 18:44:30
 
After reading Lon's review, I bit the bullet and ordered a Dynagrid Jr.  I have used the stock Sarah 300B rectifier, Cryotone 5U4G, 5AR4 and none compared to the Dynagrid Jr.  I wont repeat what has been said before but I am thoroughly enjoying my Sarah 300B and the rest of the system.  BLUF, I listen while I work and I do not tire of listenijng.
Bob
Back to top
 
 

PAP Trio or Quintets (w/passive and active Xover)s Sarah300b and UFO 25th/Aric Audio Pre/Lampizator Atlantic TRP/USB/Pulse/LHY SW10, Roon/Thorens 1600(SRA ICs and PCs/Equi=Core 1800, SSZ, ACX3,SFDBs and STR-1002s,Dynagrid Jr.)
Richmond, VA
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
Lon
Seasoned Member
****
Offline

"Love without
guts is
worthless!"
Philip K. Dick

Posts: 28886
Munson Township, OH
Re: DynaGrid Jr Impressions
Reply #4 - 09/30/26 at 12:54:37
 
Good to see how the JR. is being used!

The clarity that the JR. brought to my system has me rolling tubes and unseating a complement than I had used before. Which makes me feel better about having way way way too many tubes!
Back to top
 
 

HR-1,ZBIT,ZROCK3,SEWE300B,Dynagrid Jr;Rega RP3+all GrooveTracer mods;PSAudio:PST+DSD DAC Mk II,NPC,PowerBases,AC-12 pwr cbls, Reference spkrcbls,GCHA;Mapleshade SamsonV3;VeraFi Audio cpts VooDoo:Stradivarius interconnects;Stack EQ; phones:Sennheiser HD800S,ZMF Ori
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
CAJames
Seasoned Member
****
Offline

"I've run every
red light on memory
lane."

Posts: 3379

Re: DynaGrid Jr Impressions
Reply #5 - 10/01/26 at 15:43:02
 
I was hoping to see posts from more than just three of the "usual suspects." But such is the state of the forum these days.
Back to top
 
 

[Volumio | Jay's CDT2 MRK3] -> Denafrips Terminator 2 + Gaia
Sumiko Pearwood -> Mapleknoll Athena -> Luxman SUT -> Mapletree Phono 3E
STR-1002 -> Woo WA22 -> 2x UFO25s, balanced monos
Omega SAM , Hifiman Arya, Audeze LCD-XC
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
JHC
Seasoned Member
****
Offline



Posts: 177

Re: DynaGrid Jr Impressions
Reply #6 - 10/01/26 at 21:40:10
 
I have one of the first 10 DGRs and I've had it on a few different components. At first it was with an SE84UFO and the results were really stunning. I has previous experience with an STR Super Rectifier so my expectations were high. The DGR definitely matched if not exceeded my STR. My experiences echo Lon's and others—the sound is incredibly transparent and the DGR gives an almost uncanny sense of space and separation. The sound I am getting sounds more full and vivid and more enveloping.

I now have it accompanying my (non Decware) preamp and the result is similar. At this point, I can't imagine not having it somewhere in my system.

It seems like most people are using the stock Linlai tube, as am I. There have been a couple notes about different tubes giving different sounds but nothing too extensive. I recently found a Cetron 845 tube for what I consider to be a decent price so I am waiting to see how/if that changes things.
Back to top
 
 

OnFilter CleanSweep > Pine Tree Conditioner > (Sumiko Starling > VPI Signature Classic > Aric Audio Super MC/MM) or (Eversolo T10 + LHY FMC > LTA Aero DAC) > Pine Tree 'Cosmic Doorway' + DGR Jr. > Alan Eaton 45 Monos > Omega Super 8 HO XRS + DeepHemp 10
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
Lon
Seasoned Member
****
Offline

"Love without
guts is
worthless!"
Philip K. Dick

Posts: 28886
Munson Township, OH
Re: DynaGrid Jr Impressions
Reply #7 - 10/01/26 at 22:25:24
 
Let us know your impressions of the Cetron tube when you have listened to it a bit. I am using another Linlai 845 that seems to be constructed the same as the stock one, but has a carbon coating within the glass. There is a subtle difference that I enjoy.
Back to top
 
 

HR-1,ZBIT,ZROCK3,SEWE300B,Dynagrid Jr;Rega RP3+all GrooveTracer mods;PSAudio:PST+DSD DAC Mk II,NPC,PowerBases,AC-12 pwr cbls, Reference spkrcbls,GCHA;Mapleshade SamsonV3;VeraFi Audio cpts VooDoo:Stradivarius interconnects;Stack EQ; phones:Sennheiser HD800S,ZMF Ori
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
Hearafter
Seasoned Member
****
Online

“In Tubes We Trust”

Posts: 420
SF Bay Area
Re: DynaGrid Jr Impressions
Reply #8 - 10/01/26 at 23:14:48
 
I use the  Shuguang Natural Sound 845-T.  It was a nice noticeable improvement over the stock Linlai 845.  Well worth the step up with no intentions of trying any other 845’s.
Back to top
 
 

Aric Super 300B SET
Supratek Cabernet Pre
Mojo Mystique X’25 NC DAC
Sonore Sig Rendu SE Dlx
Vera-Fi LNBH, SSZ, MS, SW
Sonido SWR096FC Towers
KEF 62 Sub pair
SDFB-Graphene Slugs
Veritas Cables
Taboo MK3/DGR/GustardR30/Zrock3/DIY ZROBs
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
Sean
Seasoned Member
****
Online



Posts: 419

Re: DynaGrid Jr Impressions
Reply #9 - Yesterday at 00:05:28
 
No DGR here. To be perfectly honest I don’t know on which component to use it or how many I’d need. I vaguely recall that coming up in the past. I suppose I could use up to three of them - UFO, UFO25, and or CSP 2+  I’ve kicked around the idea of ordering one or two but just sit paralyzed with overthinking it all. Interested if anyone faced that dilemma and how you handled it.
Back to top
 
 

Technics 1210G, Phasemation PP-500, ZMC2, ZP3, CSP2+, UFO25, Tekton Pendragon

Mac Mini, Denafrips Iris 12th, Denafrips Ares 15, Mapletree 4A SE, UFO, Tekton Lore, EcoFlow River 2 Pro
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
PDXDrew
Senior Member
***
Offline



Posts: 73
Oregon
Re: DynaGrid Jr Impressions
Reply #10 - Yesterday at 00:18:03
 
My order just bumped to parts pulled this morning. I will be pairing mine with my DAC. I'm anxious to see how this combination works.
Back to top
 
 

Aurender N150, Lampizator GA TRP 2X12, Whammerdyne DAA 2A3 amp, Lii P10 in Modified Open Baffle, 2X RELG2, RSA & QSA cables, And Loving it! DGJ on the way...
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
CAJames
Seasoned Member
****
Offline

"I've run every
red light on memory
lane."

Posts: 3379

Re: DynaGrid Jr Impressions
Reply #11 - Yesterday at 01:31:36
 
Quote:
Posted by: Sean      Posted on: Today at 16:05:28

No DGR here. To be perfectly honest I don’t know on which component to use it or how many I’d need...I’ve kicked around the idea of ordering one or two but just sit paralyzed with overthinking it all..


Order one and try it in all three, after it is broken in. Leave it in the one that makes the biggest improvement (it will probably be the UFO25) and then decide if you need to order more.
Back to top
 
 

[Volumio | Jay's CDT2 MRK3] -> Denafrips Terminator 2 + Gaia
Sumiko Pearwood -> Mapleknoll Athena -> Luxman SUT -> Mapletree Phono 3E
STR-1002 -> Woo WA22 -> 2x UFO25s, balanced monos
Omega SAM , Hifiman Arya, Audeze LCD-XC
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
Lon
Seasoned Member
****
Offline

"Love without
guts is
worthless!"
Philip K. Dick

Posts: 28886
Munson Township, OH
Re: DynaGrid Jr Impressions
Reply #12 - Yesterday at 12:26:05
 
Congrats PDX!
Back to top
 
 

HR-1,ZBIT,ZROCK3,SEWE300B,Dynagrid Jr;Rega RP3+all GrooveTracer mods;PSAudio:PST+DSD DAC Mk II,NPC,PowerBases,AC-12 pwr cbls, Reference spkrcbls,GCHA;Mapleshade SamsonV3;VeraFi Audio cpts VooDoo:Stradivarius interconnects;Stack EQ; phones:Sennheiser HD800S,ZMF Ori
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
Lon
Seasoned Member
****
Offline

"Love without
guts is
worthless!"
Philip K. Dick

Posts: 28886
Munson Township, OH
Re: DynaGrid Jr Impressions
Reply #13 - Yesterday at 12:29:02
 
Sean wrote on Yesterday at 00:05:28:
No DGR here. To be perfectly honest I don’t know on which component to use it or how many I’d need. I vaguely recall that coming up in the past. I suppose I could use up to three of them - UFO, UFO25, and or CSP 2+  I’ve kicked around the idea of ordering one or two but just sit paralyzed with overthinking it all. Interested if anyone faced that dilemma and how you handled it.

Sean, that is good advice from James.
Back to top
 
 

HR-1,ZBIT,ZROCK3,SEWE300B,Dynagrid Jr;Rega RP3+all GrooveTracer mods;PSAudio:PST+DSD DAC Mk II,NPC,PowerBases,AC-12 pwr cbls, Reference spkrcbls,GCHA;Mapleshade SamsonV3;VeraFi Audio cpts VooDoo:Stradivarius interconnects;Stack EQ; phones:Sennheiser HD800S,ZMF Ori
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
Sean
Seasoned Member
****
Online



Posts: 419

Re: DynaGrid Jr Impressions
Reply #14 - Today at 04:10:53
 
I was gonna say something smart like you guys are a bad influence, but you didn’t tell me to get two!

My rationalization train is a mess…if I get one, how will I know if there’s something left on the table by not having a friend for the CSP?? The. I forgot the ZP3, now I’m way out in the weeds. What’s ifs can wreck me at times. That’s where I was looking for insight on anyone running multiple, is it a diminishing return? Are they best used for amps?

I’ve got a bigger fish to fry with setting up a new space in a new room. Perhaps when that gets settled I’ll add a DGR as some icing on the cake. So I really should get one on the list so it’ll line up for when that space is done.

Side note, I always keep an eye on hifi shark for used Decware. I think I’ve only seen one come up for sale. That’s a pretty good indicator to me that they don’t disappoint.
Back to top
 
 

Technics 1210G, Phasemation PP-500, ZMC2, ZP3, CSP2+, UFO25, Tekton Pendragon

Mac Mini, Denafrips Iris 12th, Denafrips Ares 15, Mapletree 4A SE, UFO, Tekton Lore, EcoFlow River 2 Pro
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
Sentry
Verified Member
**
Online



Posts: 19
Yorktown VA
Re: DynaGrid Jr Impressions
Reply #15 - Today at 06:29:07
 
I have my DGR connected to my Signature CSP which feeds my Signature Monoblocks. Steve upgraded all three to the latest modifications a year or so ago.  I’m also using the Linlai 845 carbon-lined primarily to match the PSVANE 274B-Z carbon-lined tubes in the monos.  I debated the “one vs two” DGR(s) for my system and decided to start with one in the preamp.  It replaced an RCA 5U4G, RCA 5R4GY or Cryotone 5U4G (depending on the day).  Even with my post-USAF flying career, 72 year old ears I can hear a positive change…I like the sound.  I “probably” will not be ordering a second DGR. I’m very happy with my system and I don’t have room for anything else.
Back to top
 
 

Zen SV83 Sig Monos wMods/Zen Sig CSP wMods/ZBOX/ZROCK3/Mapletree C3 Phono/Kenwood KD500 wInfinity Black Widow CF tone wGrado Ref Platinum cartridge/Oppo 103D/Denafrips ARES 15/Zu Audio DWX wWharfedale stands/RSL 10D MKII Speedwoofers/Meze109 PRO/Schitt Valhalla 2
  IP Logged
Share: X Facebook LinkedIn Email WhatsApp Instagram Likes:
Pages: 1
Send Topic Print