• WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required as is 20 years of participation in forums (not all true). There are daily reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!

XTZ EDGE A2-300 Review (amplifier)

Matias

Major Contributor
Forum Donor
Joined
Jan 1, 2019
Messages
3,575
Likes
6,727
Location
São Paulo, Brazil

Thomas_A

Major Contributor
Forum Donor
Joined
Jun 20, 2019
Messages
2,114
Likes
1,482
Location
Sweden

howard416

Active Member
Joined
Sep 12, 2019
Messages
152
Likes
75
The ICEpower modules typically aren't too great with distortion vs frequency, any chance we can get those, harmonic spectra, IMD, multi-tone, etc?

Thanks anyhow for the measurements!
 

Shure

New Member
Joined
Mar 7, 2021
Messages
1
Likes
1
I have the xtz A2-300 and the audiophonics HPA-S400NC with the ncore nc400 modules.
To my ears the audiophonics amp is definitely the better amp, they are not even close.
But it is also x3 more expensive.
It would be interesting to compare it to the cheaper ncore mp modules.

I have a Yamaha RX-A3050 as preamp and Xtz Divine 100.49 for speakers.
 

EkNad

Member
Joined
Mar 15, 2021
Messages
6
Likes
2
Hi, Amir You forgot to turn the gain to full. It's not a fixed amp, as you can see. You must manually set gain to max if you're gonna stresstest it as a power amp.
I double checked with manual and Xtz. Youre measurements doesn't corolate to others.
 

Rottmannash

Major Contributor
Forum Donor
Joined
Nov 11, 2020
Messages
2,223
Likes
1,870
Location
Nashville
Hi, Amir You forgot to turn the gain to full. It's not a fixed amp, as you can see. You must manually set gain to max if you're gonna stresstest it as a power amp.
I double checked with manual and Xtz. Youre measurements doesn't corolate to others.
He adjusted the gain for 29 dB which is what he measures all amps at.
 

EkNad

Member
Joined
Mar 15, 2021
Messages
6
Likes
2
Sorry on Pre or on gain level that we see is not full.

It's variable not fixed. I just talked to Xtz and they said it must be set to full.

Sitat: Amir -The position is as you see in the picture. And no, you can't get more power as it clips at this level already and protection circuit current limits. This happened at 1.2 volts so definitely no more juice to be had. It could be power supply limited.

Sitat End

Sorry if I'm misunderstanding the measurements.

The gain is there to protect speakers, and for use with a phone or dac without volume control.

this Xtz unit measures abit under specs -dynamic , but not much.

Here is a dynamic measured cube..

post-17727-0-39756600-1542985373_thumb.jpg
 
Last edited:

EkNad

Member
Joined
Mar 15, 2021
Messages
6
Likes
2
The 300 name is from B&O/Ices watt numbers from the Ice module, but I'm guessing that is one channel driven....
 
Last edited:

Kegemusha

Senior Member
Joined
Jul 16, 2020
Messages
327
Likes
321
Seems way to expensive for what it is.

This company is 60km from home, I can find these for some 300 2nd hand (costs some 350 new somtimes), but after seeing the meassurements I guess the nc122 will be a better choice, still is not a bad amp to me.

Looking at the excel list of amps sorted by meassurements, there amps for 52000$ or even the PS Audio Stellar doing little bit worst.

And I can see XTZ just released the Edge-A2-400.
 
Last edited:

digitalfrost

Major Contributor
Forum Donor
Joined
Jul 22, 2018
Messages
1,226
Likes
2,156
Location
Palatinate, Germany
I run stereo subwoofers using 2 Tang Band W5-1138SMF per side. We can see from the impedance graph, they dip to ~6 ohms in the usable range (20hz-120hz). DCR is given as 3.4Ohms. Due to low impedance, I wired them in series when building them. However, I would like to have a bit more output, so I'm wondering if you think this amplifier would be safe/stable to run these chassis wired in parallel?

According to the datasheet minimum load is 2.5 ohms.
 

HermitageBass

New Member
Joined
Feb 7, 2022
Messages
2
Likes
0
Is that really fair? There are tons of power amplifiers out there which measure even worse than this, but cost ten times as much.

On the flip side, are there really that many power amplifiers that are cheaper and better?
My thoughts exactly
 

guildenstern

Member
Joined
May 18, 2020
Messages
40
Likes
43
I recently acquired the XTZ A2-300 -- even after reading Amir's measurements. Early impression is that I like what I'm hearing.

It's being used in a desktop system to drive small Spendor monitors (which I've owned for at least a couple decades), generally at low volumes, fed by a Schiit Modi DAC thru the "passive preamp" outputs of a Magni amp (i.e., basically using the Magni as a volume control only). The XTZ replaces an old workhorse NAD integrated amp (which I was using as a power amp only by removing the pre-to-power jumpers and feeding the Magni output to the power amp inputs). Subjective impressions -- the XTZ sounds cleaner and clearer than the old NAD, much better defined in the lows and mid-bass, and generally non-fatiguing and very enjoyable.

Amir concluded his review by saying, " You have the data to decide for yourself." I for one am glad I decided to buy it! We'll see what the long term brings but for now I guess you might say that I'm enjoying it beyond (or despite) measure.
 

JoetheLion

Member
Forum Donor
Joined
Nov 16, 2020
Messages
87
Likes
98
Location
Rhineland
Does anyone know of a comparable power amp in a small enclosure with Hypex NCore or Purifi? Comparable means:

  • Adjustable Gain
  • Auto-On/Off mode (not as trigger)

The only ones I know are NAD C 268 (Hypex) / C 298 (Purifi), but unfortunately they are too big for me.
 

guddu

Active Member
Joined
Feb 10, 2020
Messages
144
Likes
43
Location
London
I had this amp running fine from about 2 years, but recently noticed hum specially when rca are connected on amp but not on another end.
Same is the case when it is plugged too.
Any help on what might be wrong?
 
Top Bottom