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[amirm] Audio by Van Alstine ABX Comparator Review
Audio by Van Alstine ABX Comparator Review
This is a review and measurements of the Audio by Van Alstine (AVA) ABX Comparator. It is discontinued but I purchased it for US $1,300.
This is a multipurpose AB testing device, capable of switching and level matching both amplifiers and sources:
This it third and last known ABX comparator...
www.audiosciencereview.com
October 3, 2026 at 6:08 AM
[amirm] Audio by Van Alstine ABX Comparator Review
[amirm] SMSL RAW-MHA1 Stereo Amplifier Review
SMSL RAW-MHA1 Stereo Amplifier Review
This is a review and detailed measurements of the SMSL RAW-MHA1 balanced stereo amplifier. It was sent to be by Shenzhenaudio and costs US $199.99.
At first I was wondering why the display was not lighting up. But then saw the price and realized the volume control is analog, not rotary digital...
www.audiosciencereview.com
September 27, 2026 at 9:43 PM
[amirm] SMSL RAW-MHA1 Stereo Amplifier Review
[amirm] Douk H5 Stereo Tube Amp Review
Douk H5 Stereo Tube Amp Review
This is a review and measurements of the Douk Audio H5 Tube based preamplifier with phono stage. It was sent to me by the company and costs US $89.99.
I know the box looks like any other but it actually has a clear step above fit and finish. The tone controls feel solid with a nice detent...
www.audiosciencereview.com
September 26, 2026 at 5:57 AM
[amirm] Douk H5 Stereo Tube Amp Review
[NTTY] Sony UBP-X700/K Review (Blu-ray/DVD/SACD/CD Transport) (NTTY)
Sony UBP-X700/K Review (Blu-ray/DVD/SACD/CD Transport) (NTTY)
Hello Everyone,
This is a review and measurements of the Sony UBP-X700/K, Blu-ray, DVD, SACD, and CD Transport.
Sony UBP-X700/K - Presentation
This is a universal Transport meaning that it does not have internal DACs. I got it for around $300, which is a reasonable price considering all...
www.audiosciencereview.com
September 26, 2026 at 12:36 AM
[NTTY] Sony UBP-X700/K Review (Blu-ray/DVD/SACD/CD Transport) (NTTY)
[amirm] Rebooting the server and installing some patches
Rebooting the server and installing some patches
Sorry about the late notice but I will shortly be taking the forum down for some maintenance. You may not want to write a post in the middle of this. :) Should not take long unless I break something. :)
www.audiosciencereview.com
September 24, 2026 at 5:22 PM
[amirm] Rebooting the server and installing some patches
[amirm] miniDSP Tide16 AV Processor Review
miniDSP Tide16 AV Processor Review
This is a review and detailed measurements of the miniDSP Tide16 16 channel AV Processor (AVP). It was sent to me by the company and costs US $3,500.
I like the compact dimensions of the unit. Reminds of my first processor, the Lexicon DC-1. The display is very high contrast and resolution...
www.audiosciencereview.com
September 23, 2026 at 6:15 AM
[amirm] miniDSP Tide16 AV Processor Review
[amirm] Denon AVR-X3900H AVR Review
Denon AVR-X3900H AVR Review
This is a review and detailed measurements of the Denon AVR-X3900H 9.4 4K/8K Dolby Atmos AV Receiver. It was kindly drop shipped to me by a member and costs US $1,849.
It might be my imagination but the front panel looks a bit more modern. And the volume control no longer a stiff knob. It...
www.audiosciencereview.com
September 17, 2026 at 7:22 PM
[amirm] Denon AVR-X3900H AVR Review
[amirm] Topping M62 Portable Audio Interface Review
Topping M62 Portable Audio Interface Review
This is a review and detailed measurements of the Topping M62 Portable (battery operated) Audio Interface (ADC/DAC) and headphone amplifier. It was sent to me by the company and costs US $ 249.
There is a ton of functionality for which, I am not qualified to fully describe. But we are talking...
www.audiosciencereview.com
September 13, 2026 at 6:22 AM
[amirm] Topping M62 Portable Audio Interface Review
[NTTY] SMSL H200 Preamplifier & HP Amp Review (NTTY)
SMSL H200 Preamplifier & HP Amp Review (NTTY)
Hello Everyone.
This is a review and detailed measurements of the SMSL H200 Preamplifier and HP Amplifier.
It was kindly sent to me by SMSL, on my request, and I received a very early production sample.
Presentation
The SMSL H200 is a pure analogue preamplifier, some sort of dinosaur in...
www.audiosciencereview.com
September 12, 2026 at 5:14 PM
[NTTY] SMSL H200 Preamplifier & HP Amp Review (NTTY)
[amirm] Fosi DS3 Portable DAC & HP Amp
Fosi DS3 Portable DAC & HP Amp
This is a review, listening tests and detailed measurements of DS3 balanced smart DAC and headphone amplifier. It was sent to me by the company and costs US $99.99.
No, that is not a control. Everything you see on the front is for aesthetics. The controls are on top which are heavily...
www.audiosciencereview.com
September 9, 2026 at 10:08 PM
[amirm] Fosi DS3 Portable DAC & HP Amp
[amirm] D&A Alpha DAC & HP Amp Review
D&A Alpha DAC & HP Amp Review
This is a review and detailed measurements of the D&A Alpha balanced DAC and headphone amplifier. It was sent to me by Shenzhen Audio and costs US $399.
No, you are not seeing double. What I tested before was the Alpha Pro. The non-pro version has the same distinct white LED and clear front...
www.audiosciencereview.com
September 7, 2026 at 8:08 PM
[amirm] D&A Alpha DAC & HP Amp Review
[amirm] Fosi CA30 Four Channel Car Audio Amp Review
Fosi CA30 Four Channel Car Audio Amp Review
This is a review and detailed measurements of Fosi CA30 four (4) channel car audio amplifier. It was sent to me by the company and sells for US $140.
Construction is very solid with the unit feeling much heavier and denser than it should at this price. The usual options are provided for gain...
www.audiosciencereview.com
September 5, 2026 at 3:50 AM
[amirm] Fosi CA30 Four Channel Car Audio Amp Review
[amirm] Interspace PCBB3 Hum Eliminator/Converter
Interspace PCBB3 Hum Eliminator/Converter
This is a review and detailed measurements of the Interspace/Hive PCBB3 3.5mm unbalanced to XLR balanced converter/"hum eliminator." It was kindly drop shipped to me. This model is superseded by PCBB4 which costs US $151.
I was impressed by the very nice feel of the silicone cable bringing out...
www.audiosciencereview.com
September 2, 2026 at 8:57 AM
[amirm] Interspace PCBB3 Hum Eliminator/Converter
[amirm] Interspace USB to Balanced Box (DAC)
Interspace USB to Balanced Box (DAC)
This is a review and measurements of the Hive Interspace USB Balbox adapter. It is built in UK and was kindly drop shipped to me by a member. The version I have is no longer on their site but they do have a version 3. No specs are provided to know if there are improvements in issues I have...
www.audiosciencereview.com
August 31, 2026 at 11:08 PM
[amirm] Interspace USB to Balanced Box (DAC)
[NTTY] SMSL SU-2 DAC Review (NTTY)
SMSL SU-2 DAC Review (NTTY)
Hello Everyone, this is a revie and measurements of the SMSL SU-2 DAC
I bought it from the Ali store, and paid roughly $120 shipping included.
SMSL SU-2 – Presentation
The SU-2 replaces the SU-1, drops the USB input and adds an AES SPDIF (Balanced) connector. It hosts the ESS ES9039Q2M...
www.audiosciencereview.com
August 23, 2026 at 11:36 PM
[NTTY] SMSL SU-2 DAC Review (NTTY)
[amirm] German Maestro GMP 8.35 D Headphone Review
German Maestro GMP 8.35 D Headphone Review
This is a review, listening test, EQ and detailed measurements of the German Maestro GMP 8.35 D Headphone. It was sent to me by the company and sells for US $245.
As you see the headphone looks somewhat industrial and seems to be built to be durable. It came with another set of pads but I chose...
www.audiosciencereview.com
August 23, 2026 at 8:15 AM
[amirm] German Maestro GMP 8.35 D Headphone Review
[amirm] Ascilab C6B Speaker Review
Ascilab C6B Speaker Review
This is a review, listening tests and detailed measurements of the Ascilab C6B bookshelf speaker. It costs USD $1,357 per pair inclusive of import fees. Pricing varies in other parts of the world:
Important note: my other company, TestedAudio, is the sole distributor for all of Ascilab...
www.audiosciencereview.com
August 10, 2026 at 8:56 AM
[amirm] Ascilab C6B Speaker Review
[amirm] Cubilux Budget 7.1 USB Sound Card Review
Cubilux Budget 7.1 USB Sound Card Review
This is a review and detailed measurements of the Cubilux 7.1 USB Surround DAC and line/microphone input. It was kindly drop shipped to me and only costs USD $32.
From the pictures I assumed it was desktop sized but as you see, it is tiny. Fortunately it is made of metal and feels great in...
www.audiosciencereview.com
August 8, 2026 at 7:00 AM
[amirm] Cubilux Budget 7.1 USB Sound Card Review
[amirm] Ascend CBM-170SE2 Speaker Review
Ascend CBM-170SE2 Speaker Review
This is a review, listening tests and detailed measurements of the Ascend Acoustics CBM-170SE2. It was sent to me by the company and costs USD $248 each.
There is a grill which I removed, making the speaker look utilitarian. Pick it up though and you realize it weighs more than you expect...
www.audiosciencereview.com
August 5, 2026 at 5:07 AM
[amirm] Ascend CBM-170SE2 Speaker Review
[NTTY] Shanling EC Play Review (Portable CD Player, DAC & HP Amp)
Shanling EC Play Review (Portable CD Player, DAC & HP Amp)
Hello everyone,
This is a review and measurements of the Shanling EC Play portable CD player, transport, DAC and HP Amp.
I bought it for roughly $200, and went for the green version which I find very nice as the color is really light and metallic.
Shanling EC play - Presentation
This one...
www.audiosciencereview.com
August 4, 2026 at 7:56 PM
[NTTY] Shanling EC Play Review (Portable CD Player, DAC & HP Amp)
[NTTY] SMSL PS200 PRO DAC Review (NTTY)
SMSL PS200 PRO DAC Review (NTTY)
Hello everyone,
This is a review and measurements of the SMSL PS200 PRO.
I got it for roughly $90 which is reasonable even if the feature are on the low side (DAC function only).
SMSL PS200 PRO – Presentation
It is the revised version of the SMSL PS200 and features the same ESS ES9039M2Q...
www.audiosciencereview.com
July 31, 2026 at 4:35 PM
[NTTY] SMSL PS200 PRO DAC Review (NTTY)
[amirm] 2026 Shenzhen International Audio Show SIAS
2026 Shenzhen International Audio Show SIAS
At the kind invitation of Shenzhen Audio, I will be attending the 2026 SIAS Shenzhen International Audio Show. The show starts on August 14 and goes through the 16th.
If you will be there and see me jetlagged and wondering around with a camera feel free to say 你好. :)
I have not been to...
www.audiosciencereview.com
July 31, 2026 at 3:49 AM
[amirm] 2026 Shenzhen International Audio Show SIAS
[Rja4000] E1DA #9039S Balanced Portable DAC/Amp Review
E1DA #9039S Balanced Portable DAC/Amp Review
Here is a review and measurements of the
E1DA #9039S balanced USB DAC and Headphones amplifier
The #9039S is VERY small, as you may see on the pictures, where it's laying on my Samsung S23 Ultra.
And it weights a mere 12g.
I received it for free from Ivan (Mr E1DA, aka @IVX) for...
www.audiosciencereview.com
July 30, 2026 at 8:56 PM
[Rja4000] E1DA #9039S Balanced Portable DAC/Amp Review
[amirm] Lily Audio Genesis One 2nd Headphone Review
Lily Audio Genesis One 2nd Headphone Review
This is a brief update to the Lily Audio Genesis One headphone I reviewed a few months ago. Company said additional tuning was made and sent me a new production sample:
I haven't taken a new picture because it all looks the same. Let's see how it measures.
Lily Audio Genesis One New Sample...
www.audiosciencereview.com
July 30, 2026 at 8:56 AM
[amirm] Lily Audio Genesis One 2nd Headphone Review
[amirm] Radiant Acoustics Clarity 66 Speaker Review
Radiant Acoustics Clarity 66 Speaker Review
This is a review, listening tests and detailed measurements of the Radiant Acoustics Clarity 66 Purifi-based speaker. It was sent to me by the company and costs US $9998.
My sample is in black (please don't mind the poor white balance) and looks quite elegant. It also comes in walnut and oak...
www.audiosciencereview.com
July 27, 2026 at 6:56 AM
[amirm] Radiant Acoustics Clarity 66 Speaker Review