Potenza: 2 x
100 Watt (8 Ohm )
Frequenza: 10Hz~100KHz (0,-3dB)
430 mm x 185.5 mm x 454 mm
Stratosferico integrato di produzione cinese , costruito senza
compromessi , con un uso di alluminio di alto spessore che non ho mai
visto su nessun apparecchio . Mi sono anche preso la briga di
misurare con il calibro alcuni spessori e sfido qualsiasi persona
a trovare un prodotto di questo costo ( ma anche doppio ) con
questo uso di ottimo materiale.
Le connessioni dietro ci sono tutte entrata RCA di qualità per la
fonte segnale più performante , ottimi RCA per gli altri
segnali , entrata XLR e connessioni per diffusori al top. I primo 30
watt sono in classe A.
quello che mi scrive l'importatore:
Non hai visto pero' la parte piu' bella del 6950!!! Se togli il
coperchio con le scritte, al di sotto è uno spettacolo!
Condensatori WIMA in quantita', il mitico potenziometro ALPS Blu
pilotato elettronicamente attraverso un alberino motorizzato.
Totale simmetria anche in quella sezione.
Da notare anche i microswitch collegati agli ingressi RCA posteriori,
di tipo elettroattuato, per evitare l'effetto "bump" nel passaggio da
una sorgente all'altra.
E' davvero un amplificatore realizzato con tutti i crismi di qualità
che ci si aspetta da un prodotto di prezzo doppio o triplo.
Rodalo almeno una cinquantina di ore, si trasforma ulteriormente!
Ancor piu' controllo sui bassi, ancor piu' corrente!
Il prodotto viene importato da Xindak italia quindi ha la
copertura della garanzia seria e affidabile.
Questa unità adotta due differenti amplificazioni pushpull simmetriche e
transistor FET (Field Effect Transistor – Transistor ad effetto di
campo) è posizionato sul percorso di amplificazione, mentre lo stadio
successivo adotta un circuito simmetrico di controreazione con ampia
risposta in frequenza e privo di distorsione.
ogni canale ci sono due stadi di impulso con quattro coppie di
transistor appaiati di alta qualità Hi-Fi e di grande capacità, che
consentono di ottenere un ampio range dinamico e grande capacità di
controllo sulle basse frequenze.
Vengono adottati due trasformatori toroidali di potenza per i canali
sinistro e destro, ognuno dei quali segue un percorso di amplificazione
il controllo del volume viene impiegato un potenziometro motorizzato
ALPS blu di grande dimensione, funzionante nella esclusiva modalità
chiamata “potenziometro analogico a controllo digitale indiretto”,
brevettata dalla Xindak, e che assicura massima precisione e assenza di
distorsione del segnale.
pannello anteriore è arricchito da un funzionale display VFD di generose
dimensioni e di grande impatto visivo. Tutte le funzioni sono
comodamente pilotabili da remoto con un pratico telecomando.
L’amplificatore è controllato da un microcomputer dotato di differenti
funzioni di protezione che offrono sicurezza ed un utilizzo semplice
Guardate come e
costruito la copertura superiore !!! 6 mm di spessore
Le alette di
raffreddamento che coprono tutti e due i fianchi , spessore 10 mm !!!
L'imabllo e il
solito cinese a due strati e nella confezione troviamo i
classici guanti bianchi , e un sacco di panno nero , dove si può
inserire l'ampli dentro oppure lo si puo' usare come copertura
Dinamico , articolato e sopratutto capace di tanta corrente e
quindi ottimo per pilotare diffusori anche ostici. Molto
raffinato il medio alto e ben presente , dinamico e vigoroso il
La foto insieme al
Xindak XA6950 Class A Integrated Amplifier On Stereomojo Website (USA)
Some people are more into names than performance. A customer at a local
dealer was bragging about a number of high panache brand name
electronics that she owned. While there, she purchased something with
barely a listen. This person could miss out on certain audio gems like
the Xindak XA6950 class A integrated amplifier. Class A amplifiers bias
the amplifying circuit such that they always amplify in the most linear
portion of their range, reducing distortion but at the expense of using
a fair amount of power, even at idle.
The XA6950 is a minimalist design integrated amplifier with a large
emphasis on sound, build quality, and design. It runs in class A mode
for the first 30 watts and then switches to class AB in order to achieve
100 watts per channel. It features 4 inputs total with 4 pairs of RCA
inputs and one set of balanced inputs which override the first set of
RCA inputs when used. There are no inputs for turntables here. The only
other specific feature is a temperature readout which actually comes in
handy given the class A designation of this unit
The remote, handsomely carved out of solid aluminum, can control the
volume and source select as well as the temperature readout. It has a
stylish twist in that the top right hand corner is chopped off making it
look a bit like Gumby made out of aluminum. It looks great and feels
solid with one visitor mentioning that you could hurt somebody with it.
The buttons, labeled B1, S1, S2, S3, and S4, select inputs but do not
have any backlighting nor do they glow. Depressing the buttons result in
a very distinct ¡°pa-tink¡± which my wife found off-putting but I found
reassuring. They have the distinct feeling of buttons that were meant to
last a long time.
In their quest for the best sound possible, the XA6950 utilizes a top
quality ALPS volume control in the analog domain, digitally controlled
via a motorized mechanism. This is part of their effort to have a very
short signal part for better sound quality. Balance and tone controls
are nowhere to be found, extending the minimalist theme. Preamp outputs
are also not an option here. This may not really be an issue as the real
strength of this unit is the amplifier. Top notch parts are found
throughout such as Dale resistors, Wima MKP capacitors, and CMC RCA
This is the first amplifier where Xindak has employed negative feedback
circuitry with a very wide frequency range with the characteristics of
high speed and low distortion. It also uses SANKEN MOS FET output
transistors in comparison with some of their amplifiers which utilize
tubes. In past experience, amplifiers utilizing MOS FET transistors seem
to have had a strong authoritative bass characteristic. Read on to see
if that trend continued.
The power supply is comprised of two high power torroidial transformers
which may lend to the XA6950¡¯s overall dynamic character. In order to
cool all this power, both sides of the unit are large cooling fins
looking both rugged and jewel like with fine attention to detail. These
flank the front panel which is a redesign from the older generation
Xindak amplifiers. One feature that is rather rare on an integrated amp,
epecially at this price, is a pair of XLR jacks for a balanced input.
The look is rather elegant with an LED screen indicating the input
select, volume, and temperature if requested. In the center of the new
faceplate is the volume knob. Behind what is arguable one of the best
volume controls in the world, is a volume knob that cheapens the look of
the system. It is relatively flush with the faceplate and, in order to
turn it, one must place a finger inside an indent to turn it. This just
isn¡¯t up to the quality level of the rest of the system. My wife
commented that it looked like a Bose Wave radio from the front pointing
out the cheap volume knob. Lucky for us, it¡¯s the sound of the Xindak
XA6950 that really exceeded our expectations.
The delivery man struggled to unload the XA6950. At 60 lbs this hulking
exercise in minimalism is difficult to maneuver with one person,
especially one taking extra care with a sample unit. Opening the box
revealed the remote, a bound simple yet effective manual, a Xindak cloth
bag for the amplifier, and white gloves which were really a nice touch.
The white gloves are likely to keep the unit pristine during setup
although a better use may be wiping sweat from your brow once
maneuvering the amplifier into place.
The Xindak was put into service directly in place of the reference
integrated amplifier, a Bryston B100 SST. The setup utilized speaker
cables from Cardas, an Audioquest NRG-2 power cord, and BlueJeans LC-1
interconnects. The inputs were connected to the outputs of a Lite Audio
DAC AM modified by Pacific Valve. Break-in consisted of playing a 7 disk
CD on random changer over and over during the day while keeping the
amplifier idling at night. The temperature display indicated an idle
temperature of around 38-42 degrees Celsius. The initial listen resulted
in replacing the Audioquest NRG-2 power cable with a simple Volex
shielded 17604. The Volex was a better fit as it removed some initial
harshness and traces of sibilance. Note that the power cord was plugged
directly into the wall via a PS audio hospital grade outlet ¡°au-natural¡±.
was impressed by the Xindak sound from the beginning. Stringed
instruments, horns, and voices sounded more real than ever before in my
listening room. The Xindak¡¯s sonic character revealed itself quickly
slightly besting the reference Bryston B100 SST in every way. The Xindak
consistently revealed a large sense of space being neither too bright
nor rolled off in the highs. The tonal balance was one of warmth with
deep very taught powerful bass. Male voices were fleshed out nicely
without being boomy while female voices were rendered with great
delicacy. After a quick pass with some reference CDs, and then a larger
pass with a broader spectrum of music it became clear that this
amplifier performs great across all types of music from classical, to
jazz, to pop, hard rock, and even dance music. Picking musical
references was going to be a fun problem as no one piece of music really
showcased the sound over the other, it was just good across the board.
My wife noted that she found the Bryston¡¯s slower fuller bass a bit
more forgiving with some 80¡¯s music like ¡°Green¡± from REM.
One rather interesting character was seemingly endless harmonics from
stringed instruments which also took on a warm almost boxy tone. This
was mostly evident on acoustic guitars as well as the violin and viola
where it seemed like the microphone was bit closer than it might really
have been. Correct or not, I really enjoyed how real they sounded. A
great example of this was Friday Night Live in San Francisco by De
Lucia, DiMeola, and Mclaughlin on CD. This also really showcased the
detail, immediate speed, and attack of of which the Xindak is capable.
Horns played through the Xindak XA6950 were rendered with beautiful
texture and body. Saxophones had a bit more weight than with the Bryston.
A visiting listener noted how the horn switched from a trumpet to a
saxophone in Dire Straits ¡°Your Latest Trick¡± on SACD. Thinking it may
be the SACD vs CD difference, we played the CD and the effect was still
there. Small airy details in the texture were all too clear adding a
sense of reality and enjoyment to the sound. We swapped the Bryston B100
SST back in and noticed that there is a larger sweet spot for multiple
listeners through the Xindak. My friend¡¯s quote regarding the Xindak
was much more convincing in person than in print; ¡°This is a good
amplifier¡±. What is missing is that he said it real slow while shaking
his head in disbelief. I was even shunned from my listening room for a
while until he had his fill. Taking this one step further, I poured
through Coltrane and Miles Davis recordings.
The Boston Pops ¡°Pops Goes the Fourth¡± was receiving some playtime
given the time of year. It¡¯s been two years now since I¡¯ve heard them
live. Hearing it through the Xindak brought us right back; ¡°You are
there¡±. It showcased the slight added sense of space and decay with
respect to the Bryston while delivering cannon fire with a decent punch
Playing Tupelo from John Lee Hooker¡¯s ¡°Best of Friends¡± on CD, the
clopping of John¡¯s foot sounded eerily lifelike. My wife and I both
noticed how great and intimate the guitar sounded and surprised at how
much you could hear his breathing between verses in the song.
Out of curiosity, I hooked up some Maggie MC1 speakers in place of my
reference speakers. These have a tendency to be a bit bright but that¡¯s
part of their character and somehow it works. They can reveal issues
like grainy treble pretty quickly. In the case of the Xindak, yes it was
a little bright as expected but those quasi-ribbon tweeters sounded
rather good through the Xindak. Note that the amplifier eeked out just
enough power to run the Maggies in my rather small listening room. If
you have Maggies and you want them to get real loud, you might have a
tough time with them combined with this amplifier and a large room.
Xindak is a Chinese high-end name that carries weight in China but is
relatively unknown in the US. At least I, nor any of my friends, had
heard of them. I've been aware of them for about 4 years - publisher.
According to their website, Xindak has been around in China since 1988 -
almost twenty years - so this is no recent startup. They have been
importing into the US for about five years. Their design goals were to
create a more innovative, stylish integrated amplifier that also takes a
leap forward sonically with higher speed and lower distortion. Sonically,
these design goals were fully met. Style-wise, they get nearly as far