2 REVIEWS
The XTZ EDGE A2-400 is a high-performance 2-channel power amplifier engineered for serious hi-fi and home cinema systems. Delivering 2 x 420 W into 4 ohmsor up to 800 W bridged into 8 ohmsit has the muscle to control even the most demanding speakers with ease and precision.
At its core lies the cutting-edge ICEedge Class-D platform from ICEpower paired with a 1000W universal power supply to ensure consistent high-output performance with remarkably low power draw in standby. Built into a sleek all-metal chassis the A2-400 combines massive dynamic capability with reference-grade clarity and distortion levels below 0.004%.
Whether youre driving thunderous movie soundtracks or revealing the finest detail in a hi-res recording the A2-400 stays composed powerful and sonically transparentat any volume.
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ICEpower® ICEedge Class-D 2 x 420 Watt
Incredible dynamic Range: >113 dB S/N (4 Vrms)
Global Voltage Compatibility
800W Bridged Mono Power
Non-Colored Sound for Precision Listening
RCA & XLR input with Trim Control
The EDGE A2-400 is powered by one of ICEpower’s most advanced Class D platforms, the ICEedge chipset. Engineered for extreme precision, it delivers ultra clean, high current performance with a wide dynamic range, preserving every detail with depth and authority. The result is effortless clarity and speed, even under demanding loads. Integrated protection prevents clipping, overheating, and overload, while pop suppression ensures silent startup and shutdown.
2 x 420 W into 4 ohms / 2 x 220 W into 8 ohms (1% THD)
High output with clean headroom for full-range speakers.
1 x 800 W bridged (8 ohms mono)
Mono mode for driving power-hungry speakers (not bridgeable between stereo amps).
Dynamic range: 113 dB / THD+N <0.004%
Maintains clarity and resolution even at high volumes.
Quiet operation
Pop suppression circuits reduce startup/shutdown noise.
The A2-400 is designed for real-world flexibility, whether feeding it from a high-end processor, stereo preamp, or linking multiple amps. It offers both unbalanced RCA and balanced XLR (Neutrik A-series) inputs, along with RCA loop outputs for signal pass-through.
Balanced and unbalanced inputs
2 x RCA and 2 x XLR for compatibility with a wide range of sources.
Premium speaker terminals
Gold-plated 5-way binding posts for secure, high-current connection.
Smart standby and trigger control
A2-400 draws just 0.26 W in standby and supports automatic power-on via signal sensing (10-minute timeout) or a 12V trigger input for integration with control systems.
Adjustable gain and signal passthrough control
Fine-tune output level across multiple sources or multi-amp setups.
“XTZ sounds a lot more open — there’s a lot more detail on the top end… pretty much blows away the Marantz in every aspect: soundstage depth, clarity, crispness.” - Shane Lee
The A2-400 builds on the compact, all-metal design of the A2-300 with increased power and connection flexibility. Despite its higher output and extended chassis depth, it remains rack-mountable and visually understated.
Expanded chassis, rack friendly size
Maintains rack compatibility with a slightly deeper footprint.
Solid build, refined finish
Aluminum and steel chassis with vibration resistance and shielded internal layout.
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WxDxH: 200 x 285 x 58 (70*) mm / 7.9 x 11.2 x 2.3 (2.8*) inches (*incl. feet) Weight: 2.3 kg / 5 lbs
EDGE A2-400
WxDxH: 200 x 352 x 69 (80*) mm / 7.9 x 13.9 x 2.7 (3.1*) inches (*incl. feet) Weight: 3.1 kg / 6.3 lbs
"Power and control! Highly recommended! Quality/design: 8/10 Sound quality/price: 10/10 Original review in Norwegian."
"I love its power its simplicity its ability to always sound great no matter what genre or music I listen to or what speakers I connected to it. I think its a great amp!-Andrew Robinson"
"If you need a huge amount of power for a relatively small amount of money the A2-400 is in a class of its own. Even if you werent considering such a high power output the sonic performance and very solid build make this an impressive option for many users. This is a clever and well thought out piece of kit that comes Highly Recommended."
"The Edge A2-400 is able to drive just about any speaker with great ability"
"The precision in the midrange and treble is high and it treats transients with impressive speed and it has an open spacious deep sound stage with fine holography. In addition the dynamics even in the musics most demanding parts are excellent. Original pdf in Norwegian and translated pdf in English. Click the links above."
"Theres an effortlessness to the way in which the A2-400 delivered the dynamic cut and thrust of the attack on the train speeder in The Book of Boba Fett (Disney+) that only comes from having a serious amplifier at your disposal. Theres no sense of strain."
The parcel arrived within a week after placing my order direct from XTZ. Opening the parcel it was obvious the amplifier built quality was no Volvo looked plain rough and sharp around the edges as though it was a product from the cottage industry. Fortunately those were the only main criticism against the amplifier besides the power output. In the past few months that I put into used it perform flawlessly without fail. In contrast a brand new Rega Brio R cd player someone bought and asked me to test it out had to be be returned 2 times to the shop for one to one exchanged because it simply wont read or read selectively. The third player tracked all the discs but lasted only slightly more than 1 year and during this time the top loading cover once fell off because it used double sided tape to secure it into place. p margin-bottom: 0.1in line-height: 115% background: transparent About the power output Icepower quoted power of 220W at 1% distortion can only be taken with a pinch of salt. My Yamaha A-S3000 rated at 0.07% THD@100W seems as powerful if not more powerful. I have the A2-400 partnered to a Musical Paradise MP-701 Mk2 tube preamp (6N23P X 3/Psvane 5U4G). My impression of the poweramp is one that is not bright nor thin sounding but lean. It sounded dynamic detailed and quiet. The mid-range is palpable with no sheen whatsoever. Treble is clear clean not harsh. Bass is strong agile and very tight. In summary what I like about the sound of this preamp/power-amp combination is its: (i) strong controlled and agile bass (ii) real natural and life-like sound (iii) the mids are not overtly forward like the in the face type nor laid back just nice to me and (iv) warmth. p margin-bottom: 0.1in line-height: 115% background: transparent Sources: DAC - Yamaha CD-S3000 SACD/CD/DAC player with Choseal OCC interconnect Lenco L75 turntable with Audiomod Classic 4 tonearm Ortofon Quintet Bronze cartridge. Cardass/Canare tonearm cable Densen DP Drive/04 phono stage with Belden 8402 cable. Speaker: Yamaha Soavo NS-F901 second generation floorstander/Wireworld Mini Eclipse 7 speaker cable. Other interconnect - self terminated DH Lab Airmatrix. p margin-bottom: 0.1in line-height: 115% background: transparent
In the past I got several solid state amplifiers Radford Simaudio 250i etc and one tube amplifier the amplifier Primaluna Prologue Premium integrated. The Primaluna drove a pair of Magneplanar LRS. The sound was nice but not robust and tube amplifiers weights a ton they are quite warm temperature speaking. So I decided to buy the XTZ Edge AE-400. This amplifier is seriously built and deserves all the consideration in terms of power signal cables quality of sources. DO NOT JUDGE IT THE FIRST HOURS. It needs several hours to open up and show its transparency. The magneplanars are very revelling speakers and the differences with the above mentioned amplifiers is big. Its obvious that there is power in reserve. The sound is clear extended in the bass as in the treble the mids are clean without undue grain in the voices. For the first time the Magneplanar breathes bring a real life in the music. I give the amplifier 500 hours to present its real personality. The manufacturing is excellent the impression is one of robustness and seriousness and its so much lighter than a tube amplifier. I really enjoyed the Simaudio and the Primaluna and sonically the XTZ is a kind of the best of two world warm but precise precise image presentation. total silence mechanically and electrically despite a SMPS. The SMPS doesnt bring any electrical nuisance it cannot be heard during music sessions. In conclusion a high quality amplifier cleverly made precise AND musical which deserves the best installation to shine. Dans le passé jai eu plusieurs amplificateurs à semi-conducteurs Radford Simaudio 250i etc. et un amplificateur à lampes Primaluna Prologue Premium intégré. Le Primaluna a conduit une paire de Magneplanar LRS. Le son était sympa mais pas robuste et les amplis à lampes pèsent une tonne ils sont assez chauds parlant de température. Donc jai décidé dacheter le XTZ Edge AE-400. Cet amplificateur est sérieusement construit et mérite toute la considération en termes de câbles dalimentation de câbles de signal de qualité des sources. NE LE JUGEZ PAS LES PREMIÈRES HEURES. Il lui faut plusieurs heures pour souvrir et montrer sa transparence. Les magneplanars sont des haut-parleurs très révélateurs et les différences avec les amplificateurs mentionnés ci-dessus sont grandes. Il est évident avec le XTZ quil y a de la puissance en réserve. Le son est clair étendu dans les graves comme dans les aigus les médiums sont nets sans grain excessif dans les voix. Pour la première fois le Magneplanar respire apporte une vraie vie à la musique. Je donne à lamplificateur 500 heures pour présenter sa vraie personnalité. La fabrication est excellente limpression est de robustesse et de sérieux et cest tellement plus léger quun ampli à lampes. Jai vraiment apprécié le Simaudio et le Primaluna et sur le plan sonore le XTZ est une sorte de meilleur des deux mondes chaleureux mais précis présentation dimage précise. silence total mécaniquement et électriquement malgré un SMPS. Le SMPS napporte aucune nuisance électrique on ne lentend pas pendant les sessions musicales. En conclusion un ampli de grande qualité astucieusement réalisé précis ET musical qui mérite la meilleure installation pour briller.
XTZ sells directly to you without any middlemen. This means you get more of everything for your money: better components, better design, better engineering and as a result, a speaker to be proud of.
We are fully aware that a speaker reflects the character of the environment that it is in. As such, we offer a refund within 30 days if you are not satisfied with your purchase (see terms below).
