Update 7/15/18: I just stumbled across by far the most detailed document I have ever seen on Black Gates™ and it is by Jelmax (the creators of the technology)! See … Continue Reading Preview: Rubycon Black Gate™ F vs. Nichicon Muse | XMOS Capacitor Oscilloscope and FFT Comparisons
Six Rubycon Black Gate F capacitors are on the way for the FUN01 (SU-1 Clone). Stay tuned to find out how much of a difference they have over Nichicon’s MUSE series.
Latest page added to Hallman Labs. Photo guide on making custom EL-8 cables.
After what felt like forever, I have finally got the review into good enough shape to share most of it with you guys/gals! I hope you enjoy the review, I … Continue Reading Review #3 Goes Live! Burson Play Review
Don’t see this very often, even in classes they didn’t have one of these that had cracked the wax. First two pictures are with a 50mm lens. I noticed … Continue Reading Testing 500x Microscope out on 1000V Sprague (K631788-14) Capacitor (folded/rolled design)
Complete Guide to Making I2S Cable from CAT6A & Connecting it to ES9038Pro DAC (Using Belden 1303E Catsnake™) Updated: 6/12/18
Note: You can open all images displayed on Hallman Labs in a larger view by right clicking and then using whatever your browser says to view the image. This … Continue Reading Complete Guide to Making I2S Cable from CAT6A & Connecting it to ES9038Pro DAC (Using Belden 1303E Catsnake™) Updated: 6/12/18
Overall I am extremely impressed with the Burson Audio v2.0 PCB Play, after doing a few small things I had a great result. The Play can do DSD128 with … Continue Reading Update on Upcoming Burson Play Review
Preview of Hardware Reviews in Progress with sAp-10 – Balanced Headphone Amp under $200 (also the Burson Play DAC/Amp)
Finally got a balanced (XLR in) headphone amp. 2.8 MHz is native DSD64 converted by DOP (DSD over PCM). This is a picture from my phone, but I wanted to … Continue Reading Preview of Hardware Reviews in Progress with sAp-10 – Balanced Headphone Amp under $200 (also the Burson Play DAC/Amp)
Update 6/2/18: I completed the discrete op-amp modification after I got the replacement diodes. You need to replace Diodes 11, 12, 13, & 14 with 16V Zener diodes. If you … Continue Reading Old Meets New: Kenwood’s C-2 “Basic” Pre-amp gets a Burson Audio V6-OPA Facelift!
Update – May 15, 2018: I have almost finished restoring the bottom of the unit (where most of the components are) and expect to have it working in the next … Continue Reading High Res Photos of My New Sprague Tel-Ohmike TO-6A
I have been slowly working on this project behind the scenes, without posting about it much (aside from on ComputerAudiophile.com). This is a “discrete” delta-sigma digital to-analog converter (DAC) developed … Continue Reading DSC1.Difference : Update on the DSD Dedicated No-DAC (DAC)!
After weeks/months of trying to get my Cornell Dubilier BF-50 cap analyzer to show what is expected for a good cap vs. a known bad cap, I reached out to … Continue Reading Hallman Labs Capacitor Analyzer : Sprague Tel-Ohmike TO-6A
The Corsair 740 Air: Hallman Labs New Primary Desktop (Case) (Updated 4/14/18 w/ New Pictures, 99% completed)
Update 3: The case is basically finished now, just waiting on a few more minor parts to show up! Here is the first photo from my real camera (Samsung NX3000). … Continue Reading The Corsair 740 Air: Hallman Labs New Primary Desktop (Case) (Updated 4/14/18 w/ New Pictures, 99% completed)
Wanted to let everyone know another section has been added to the website, a pretty basic addition, but worth noting so readers don’t overlook it, should it prove useful. So … Continue Reading Quick Access to All Hallman Labs Related Files | Documents/Download Page Launched
I was using my Cornell Dubilier BF-50 (vintage) capacitor analyzer with all of the right things showing on the “Magic Eye” 6E5 (Philips JAN (Mil-Spec)) electron tube’s eye for leakage, … Continue Reading “Help”: My Cornell Dubilier BF-50 Is Testing Open Circuit as Good | Note : Treble Bleeds Halted
Well I currently have about 8 pages written of notes, thoughts on head to head Burson Play vs my custom ES9038Pro DAC. In the end it ended up … Continue Reading Apologies to the Neighbors (Burson Audio’s DAC Testing Reached 100.00dB max!!)
Ran Down (1st) ES9038PRO DAC main cause of the NLOCK | Stuck on Screen Issue w/ No Output! (~ 4 months of troubleshooting show me, it was not the dedicated TCXO clock module): Persistence Pays, this might work again!
This single loose solder ball (could have fallen inside the enclosure at any point) might explain all the problems I had with getting the DAC to lock on … Continue Reading Ran Down (1st) ES9038PRO DAC main cause of the NLOCK | Stuck on Screen Issue w/ No Output! (~ 4 months of troubleshooting show me, it was not the dedicated TCXO clock module): Persistence Pays, this might work again!
**Streaming Again Today 3/28, Later On** Far Cry 5 + the Burson Play DAC Review/Comparison to my ES9038Pro (PC HiFi Gaming Section)
Update: stream is up! https://hallmanlabs.com/hallman-labs-live-game-stream/ Thanks to those who came to watch the stream today, Far Cry 5 truly is breaking new ground for the demands on PC … Continue Reading **Streaming Again Today 3/28, Later On** Far Cry 5 + the Burson Play DAC Review/Comparison to my ES9038Pro (PC HiFi Gaming Section)
After much delay, I was able to go and pick up the Burson Play DAC today. Included was an entire set of both the V6-OPA-D Vivid + V6-OPA-S Vivid and … Continue Reading Burson Play DAC Arrives
Hallman Labs 1st Product for Sale (Soon): Fixed Resistance Treble Bleed Kits V1.0 & V2.0 (Thoughts on V3.0 & V4.0)
Hallman Labs first official products for sale will be treble bleed circuits for guitars! When you dial down the volume on your guitar (with any pickups) the high frequency is … Continue Reading Hallman Labs 1st Product for Sale (Soon): Fixed Resistance Treble Bleed Kits V1.0 & V2.0 (Thoughts on V3.0 & V4.0)
You can find it in the header menu, or just click here: https://hallmanlabs.com/discrete-op-amp-review-pt-1-of-3-detailed-info-pics-of-hw-tips-to-avoid-trouble-more/ Be sure to read the note to the reader if you are going to read … Continue Reading Discrete Op-amp Review #2 Page has Launched – Part 1
Amanero: Upgrading Sanyo Oscon to Vishay BC capacitors | 1x SS3602 Sparkos Goes To Sparks, Literally
First off, I wanted to let everyone know that I plan to publish part 1 tomorrow night/Sunday morning instead of tonight. This was mainly because of the amount of time … Continue Reading Amanero: Upgrading Sanyo Oscon to Vishay BC capacitors | 1x SS3602 Sparkos Goes To Sparks, Literally
Hallman Labs is branching out and this is the first of our guitar related articles! After reading the “25 Essential Les Paul Mods” I learned that the shiny metal covers … Continue Reading Uncapping Seymour Duncan Pickups – Schecter Tempest Custom
We Have Finally Cracked the Nut! Native DSD Decoding over I2S Up and Running! (A Preview In Photos included)
I have to say that solving the mystery of this hardware arrangement was both hilarious and extremely frustrating. Trying to catch one of 6 pins being rearranged is easy to … Continue Reading We Have Finally Cracked the Nut! Native DSD Decoding over I2S Up and Running! (A Preview In Photos included)
Here is a sneak peak at my reference DAC for all of the upcoming op-amp reviews. The Asian holiday really put a delay in this, but as always the hardware … Continue Reading The ES9038Pro DAC Returns! Expect Part 1 of Discrete Op-Amp Review by 3/10/18 (Saturday night)
Below is the 3rd official video from Hallman Labs. This is a time lapsed build log video for the common GM328 Transistor/ESR Testers. This one uses a more compact … Continue Reading Time Lapsed GM328 Transistor/ESR Tester + More Build Video
I had to wait for the Asian holiday to end (Feb 22nd) for the seller to ship out a replacement ES9038Pro completed DAC, in the enclosure with dual toroidal transformers. … Continue Reading Replacement ES9038Pro DAC Now In Route!
Precision Resistors Lot : Over 12,000 Dale & Vishay RN55C Military Spec Resistors! An EBay Treasure Chest
As I mentioned in the previous article, I will use EBay as a vintage or high end/HiFi electronic components supplier when I see a deal. I have bought many … Continue Reading Precision Resistors Lot : Over 12,000 Dale & Vishay RN55C Military Spec Resistors! An EBay Treasure Chest
EBay is by far one of the largest online selections of vintage electronic components in the world. I shop here when I see a deal worth buying, usually in bulk. … Continue Reading Ultra Rare ELNA Vintage Capacitor
Below is the original thread post I made over on ComputerAudiophile.com forums. I am posting it here in the chance someone reading knows what is going on and how to … Continue Reading Houston, We Have Lost Contact: ES9038P DAC Troubleshooting
I am working on uploading a video for this common question I see in chat rooms on IRC and on forums in DIY. The big things to remember when … Continue Reading Making Custom I2S Cables
I didn’t record this soldering job because I was not expecting this to go well. I had one of my oscillator sockets (only socket without an oscillator) get destroyed between … Continue Reading Revived The Amanero! + Close Up of Uncapped Crystek CCHD-575 Oscillator!
Kimber “Kables” Testing At Hallman Labs: The Skin Effect (Signal Freq vs. Conductor Gauge) & Cryo “HiFi Fuses”! (Update 1/25/18)
Update 1/25: I realized after reading my own article and the quotes from Kimber cables that I had wired up my setup incorrectly. Kimber has one conductor carrying the … Continue Reading Kimber “Kables” Testing At Hallman Labs: The Skin Effect (Signal Freq vs. Conductor Gauge) & Cryo “HiFi Fuses”! (Update 1/25/18)
Update 1/21/18: I wanted to let everyone know how impressed I have been with this unit by just using the stock 5532 op-amps with this Douglas Self based circuit design. … Continue Reading DAC Accessory: XLR In -> RCA Out (Ckt Based on D. Self Design) Updated 1/22
So this is really exciting! In the last year we have seen traffic from 69 countries with increasing views per visitor too! I wondered if I could reach this mark … Continue Reading Hallman Labs 1st Milestone: 1000 Views in 1 Month + Visitors are up nearly 2x!!
In the photo below we have 4x Burson Audio V5-OPA-D, 4x Burson Audio V5-OPA-S, 3x V6-OPA-D “Vivid” along with two Orange Amplification discrete (Dual-DIP). Two of the V6-OPA-D casings lifted … Continue Reading Discrete Op-Amp Review, Prelude: Photos of Review Hardware (Burson V6-OPA-D “Vivid” Unskirted)
I wanted to let everyone know just in case you don’t notice the new sections popping up on the website. Slowly I am branching out to other areas besides … Continue Reading Two New Sections Added to Hallman Labs!
A quick look at Hallman Labs collection of DAC accessories or add-ons. Part 1
Quick shot of the ES9038P DAC up and running using optical output from the Creative ZXr to the ES9038 Optical Input.
Literally just posting some new pictures because I had a few people asking to see what this looks like with the high end discrete op-amps, so here you are! Thanks … Continue Reading Pictures of ES9038Pro DAC w/ Burson Audio V5-OPA and Orange Amplification’s discrete design!
Sneak Preview of ES9038Pro + Amanero Powered DSD Review: Burson Audio vs. Orange Amplification (Op-amps)
Just a few pictures of the 95% finished ES9038Pro + Amanero DAC build and a few words on why it took so long!
In order to verify the vintage capacitor collection I slowly attained all perform to spec, I started to look for capacitor analyzers. The most well known is the Sprague TEL-OHMIKE … Continue Reading Cornell Dubilier BF-50 Capacitor Analyzer
I have the ES9038Pro DAC playing both DSD/DSF and the more well known, high res capable codec, FLAC. Except on this DAC it goes up to 32 bits and 384 … Continue Reading Procedure For Mounting Transformers (One of Many Ways) for ES9038Pro DAC + Amanero
Finally have the DAC OLED screen coming on and the Amanero is recognized in Windows!
Thanks to Hifiengine.com I was able to get my hands on the official service manuals and the owners manuals + every schematic!! HiFiEngine is free to register and after that … Continue Reading Sansui AU-517 Works!! (Schematics & More Inside)
Below is a traffic insight map from one day of views on my site (Nov 25th, 2017). At first I was confused, but then excited about the fact people across … Continue Reading Hello there Europe & Asia!!
For being 39 years old, this amp is nearly spotless inside. I’d venture to say it may have been opened once before I inspected it myself. Keep in mind that … Continue Reading More Sansui AU-517 Internal Shots