Naim Nait XS 3

Integrisano pojačalo za ljubitelje muzike

Naim NAIT XS 3 je integrisano stereo pojačalo koje donosi karakterističan pristup kompanije Naim Audio reprodukciji muzike. Sa izlaznom snagom od 70 W po kanalu na 8 oma, pažljivo projektovanim analognim sklopovima i kvalitetnim napajanjem, predstavlja ozbiljno rešenje za kvalitetan stereo sistem.

U odnosu na prethodni model NAIT XS 2, treća generacija donosi značajna unapređenja izlaznog stepena, kao i potpuno novo ugrađeno MM fono pretpojačalo. Rezultat je pojačalo koje objedinjuje više izvora muzike u jednom uređaju, bez kompromisa u osnovnoj nameni – kvalitetnoj reprodukciji muzike.

Unapređena konstrukcija i pojačivački sklop

Jedna od najvažnijih promena kod modela NAIT XS 3 odnosi se na unapređeni izlazni stepen. Naimovi inženjeri optimizovali su tranzistore drugog pojačivačkog stepena i povećali brzinu naponskog pojačanja, čime je omogućena brža reakcija izlaznog stepena na promene muzičkog signala.

Pojačalo koristi diskretnu tranzistorsku konstrukciju, sa izlaznim stepenom u klasi AB i pažljivo projektovanim pretpojačivačkim sklopom. Posebna pažnja posvećena je izolaciji upravljačkih i audio kola, kao i smanjenju uticaja vibracija na osetljive elektronske komponente.

Za izbor ulaza koriste se reed releji, dok je kontrola jačine zvuka poverena Alps Blue Velvet potenciometru, poznatom po preciznom radu i kvalitetnoj izradi.

Ugrađeno MM fono pretpojačalo

NAIT XS 3 donosi značajnu prednost za ljubitelje vinila – integrisano MM fono pretpojačalo, projektovano prema Naimovim visokim standardima.

Fono sklop koristi trostepenu topologiju koja obuhvata stepen pojačanja, pasivnu ekvilizaciju i završni stepen sa aktivnom ekvilizacijom. Takvo rešenje omogućava nizak nivo šuma, dobru rezervu u odnosu na preopterećenje i preciznu RIAA korekciju.

U konstrukciji su primenjeni filmski kondenzatori sa malom osetljivošću na mikrofoniju, što je posebno važno kod fono sekcije zbog veoma niskih naponskih nivoa signala sa gramofonske zvučnice.

MM ulaz ima impedansu od 47 kΩ i kapacitivno opterećenje od 470 pF, a predviđen je za zvučnice nominalnog izlaznog napona od 5 mV. Na taj način gramofon sa MM zvučnicom može se direktno povezati sa pojačalom, bez potrebe za dodatnim fono pretpojačalom.

Kvalitetno pojačalo za slušalice

Naim je posebnu pažnju posvetio i reprodukciji preko slušalica. NAIT XS 3 poseduje zaseban izlazni stepen za slušalice koji radi u klasi A, sa standardnim priključkom od 6,35 mm.

Ovo rešenje omogućava kvalitetno slušanje muzike bez uključivanja zvučnika, uz korišćenje posebnog pojačivačkog sklopa namenjenog upravo ovoj vrsti opterećenja.

Bogate mogućnosti povezivanja

NAIT XS 3 raspolaže sa pet analognih ulaza, uključujući namenski MM fono ulaz, što omogućava povezivanje CD plejera, mrežnog strimera, gramofona i drugih analognih izvora.

Pored standardnih ulaza, na raspolaganju su pretpojačivački izlaz, izlaz za aktivni subwoofer i fiksni linijski izlazi. Zahvaljujući tome, pojačalo se može povezati sa dodatnim komponentama i prilagoditi različitim konfiguracijama audio sistema.

Posebno je korisna AV Bypass funkcija, koja omogućava integraciju NAIT XS 3 u višekanalni kućni bioskopski sistem. U tom režimu eksterni AV procesor preuzima kontrolu jačine zvuka, dok Naim pojačalo pokreće prednje stereo zvučnike.

Tehničke karakteristike

Tip: Integrisano stereo pojačalo

Izlazna snaga: 70 W po kanalu na 8 Ω

Izlazna snaga: 100 W po kanalu na 4 Ω

Analogni ulazi: Pet ulaza, uključujući MM fono

MM fono ulaz: 47 kΩ / 470 pF

Preporučeni izlazni napon MM zvučnice: 5 mV

Izlaz za slušalice: 6,35 mm, klasa A

Varijabilni izlazi: Preamp (DIN), Sub (RCA)

Fiksni izlazi: AV (DIN), Stream (DIN)

AV Bypass: Da

Kontrola jačine zvuka: Alps Blue Velvet

Daljinski upravljač: NARCOM-5

Dimenzije (Š × V × D): 432 × 70 × 314 mm

Težina: 8,5 kg

Naim NAIT XS 3 predstavlja pažljivo zaokruženo integrisano pojačalo za korisnike koji žele kvalitetan stereo sistem sa mogućnošću povezivanja različitih analognih izvora. Ugrađeno MM fono pretpojačalo, namenski izlaz za slušalice i mogućnost daljih nadogradnji čine ga posebno zanimljivim izborom za ljubitelje vinila i klasične hi-fi reprodukcije.

In the six years since the last NAIT integrated amplifiers were released, our research and development team have worked on a range of amplifier improvements.

The result is upgraded power amplifier sections for NAIT XS 3, delivering greater pace and intimacy to their musical delivery – whether it's driving a pair of loudspeakers or your favourite pair of headphones.

The NAIT XS 3 has received significant performance upgrades, including a built-in phono stage, making it a perfect partner for turntables, as well as for streamers, CD players, or any other music source people want to enjoy with the signature Naim sound.

The NAIT XS 3 offers much of the performance of our reference quality SUPERNAIT 3 in a simpler, slimmer package combining a 70W power amplifier with five analogue inputs plus a phono stage. Its high-performance preamplifier stage is as transparent as you would expect from a Naim Audio amplifier, and it also shares the single-ended class-A headphone output of its larger sibling.

The NAIT XS 3 can be upgraded with our external power supplies, power amplifiers and even cabling upgrades to get the best from all sources.

Latest Reviews:
Hi-Fi+ | NAIT XS 3 | Review, Jun 2020
"Thirty years on, the core concepts have not changed: the Nait was a damn good amplifier then, and the Naim Audio Nait XS 3 is a damn good amplifier now."

AVForums | NAIT XS 3 | Best Buy , Apr 2020
"The NAIT XS3 is an absolute star and an unquestionable Best Buy at the asking price."

Hi-Fi Choice | NAIT XS 3 | Group Test Winner , Jan 2020
"The best-sounding amplifier is Naim’s Nait XS 3, which is consistently brilliant with all types of music. It’s beautifully made, attractive, easy to use and has an MM phono stage for turntable use, which all adds up to a winning combination at the price."

Stereonet | NAIT XS 3 Integrated Amplifier, Jan 2020
This latest Naim NAIT XS 3 represents a subtle but really worthwhile improvement on its XS 2 predecessor and puts it back at the top of its class in terms of value for money. It has a thorough and even-handed yet engaging and enjoyable presentation that's hard not to love.

AVTech Media | NAIT XS 3 | Review , Nov 2019
"It ticks all the right ‘hi-fi’ boxes with a well-defined, highly detailed and carefully ordered sound, but more than this, the new Nait really sings and transports the listener deep into the musical event."

Hi-Fi Choice | NAIT XS 3 | Editor's Choice Award , Sep 2019
"The Nait XS 3 is a clear improvement over its already fine predecessor, and a really strong purchasing proposition in its own right. It feels like it has been dusted down and sharpened up, and the result is a more emotionally articulate and engaging performer that’s hard not to love."

What Hi-Fi? | NAIT XS 3 | 5 Star Review, Aug 2019
"It slots into your system and does exactly what you want it to, and that’s deliver the music with emotional impact intact. We can’t ask any more of an amplifier than that."

Hi-Fi News | NAIT XS 3 | Highly Commended , Aug 2019
"What the Nait XS 3 does so well is clarity, that usual foot-tapping Naim thing with an insight that draws you into whatever’s being played."

Features
With our typical obsessive attention to detail – all in service of achieving the most authentic musical performance – the NAIT XS 3 benefits from the following features:

Class A headphone amplification
Alps Blue Velvet volume control
Reed relay input selection
Ceramic insulators for the power transistors
Galvanically isolated microprocessor control section
Microphonic-isolating PCB mounts

Technology & Craft
The upgrades in more detail:

Our R&D team has found a way to more than double the speed of the voltage gain stage, which in turn doubles the rate at which the speaker output stage can react.

The second gain stage transistors have been optimised, so they no longer need to be shielded by a cascode stage transistor. Removing the cascode means less amplifier stabilisation is required: that doubles the slew rate and delivers another uplift in sound quality.

The phono circuit topology comprises 3 stages: the gain stage, passive equalisation and final gain and active equalisation. This enables excellent noise performance, extended RIAA equalisation beyond the audio band and great overload headroom.

All RIAA equalisation capacitors are ‘through-hole’ mounted film designs, with low microphonic pickup and excellent transient performance. As phono stages are 1000x more sensitive than other inputs, this greatly benefits the sound quality.

Input impedance is 47kΩ in parallel with 470F capacitive loading; the gain is perfect for 5mV moving magnet cartridges