Vaš audio kutak

 Letimicno pogledao ponudu zvucnika i skoro pa na guzicu,Magico prednjaci u tome!!

Meni je ovo tiha patnja:
https://www.denonpro.com/index.php/products/view3/dn-700avp

To bi baš fino išlo uz aktivne monitore za slušanje glazbe. Cijena je pristojna, oko 700 dolara, a dobiju se pravi +4 dB balansirani izlazi.

Šteta što hifi firme ne prodaju ovakve no bullshit uređaje za normalnu cijenu. A da se razumijemo, ovo je napravljeno da traje.

 Mislim da je Tajo ciljao na zvuk kakav preferiras,sto trazis od sistema,kakav zvuk volis..sto ti je bitno..

Pa ne treba mi to. Trebaju mi HDMI ulazi i izlazi, dekodiranje audia u preampu i slanje na balansirane izlaze.

3/4 opcija ovog uređaja mi je nepotrebno, u stvari, no ovo je najjeftiniji preamp kojeg sam našao a da ima balansirane izlaze i HDMI audio dekodere te video passthrough.

 Dobar je NorthStar.

A nije ni loš ovaj moj DAC/preamp dole sa 47.000 uF.

šta više flat naravno, iako mi odgovara blagi loudness al to pravdam da mi sluh nije flat pa da kompenziram.  cjeli fokus kad nešto slažem mi je kako postic da budu šta više moguce neutralne komponente a ne dodavat komponente da bi mjenjale zvuk i dodavale nekakav karakter, nemoj me krivo svatit ali cim sistem nije neutral to mi ne spada u hifi, ko ni npr cjevi s ogromnom distorzijom.

to izgleda dosta star uređaj, možda zato nema ntfs: "With comprehensive in/out connections and the latest Bluetooth® 4.0 wireless technology, the DN-700AVP is the ideal surround preamp for any commercial audio-video system."

 Naravno neutralnost je sveti gral hife...ali teško da si ikad cuo lampe u pravom svjetlu da bih mogao procijenit neutralnost ili ne.Ja sam čuo sisteme vrhunske,neutralne koliko mogu biti sa cijevima i tranđama...nema tu neke pameti,zaboravi floskule lampe toplo,tranđe snaga... vrhunska pojačala postoje u jednom i drugom taboru bez obzira na ustroj..a opet sve zvuci različito :D,zato i je ovaj hobi zanimljiv.Osobno sam na strani tranđi čisto iz komoda ,retubing zna bit vrlo skup a imaju i vjek trajanja!

Ja sam od lampi odustao tamo u devedesetima, zbog nekoliko parametara, potrošnja, osjetljivost, trajnost, nepraktičnost - palit pojačalo pola sata (karikiram) prije slušanja glazbe, da bi lampe došle u svoj optimalni mod rada... ma ne baš, hvala. Tendencija pojačanja distorzija kako se troše... nije mi to hifi. Da, imaju svoj šarm i retro štih, no toliko su nepraktične, poput onih golemih magnetofonskih vrpci, da sam jednostavno odustao od njih.

Kakve degradacije i distorzije pobogu !?

Ako je lampaš dobro dimenzioniran pojačavačke cijevi traju i dosta duže od 2 godine u nekoj normalnoj količini slušanja.

A za izobličenje (THD) sam već postavio pitanje:

Zašto  kvalitetan cjevaš sa čak do 1% THD još uvijek može ljepše zvučati od SS ampa sa 0,0005 % THD? 

Zanima li nekoga malo povijesti? Evo upravo čitao o MOSFETima, njihovom nastanku, pa ako vas zanima, evo malo povijesnih podataka, s jednom lijepom recenzijom.

https://zstereo.co.uk/2019/09/22/hitachi-hma-6500/

Koliko vas ima neki text od konstruktora uređaja koji koristite? Evo ja našao za svoj preamp malo o njemu, od osobe koja ga je konstruirala.

"I should have used my wording more cautiously. What we tried to achieve with the P303 was to produce a preamp that was essentially a "straight wire with gain". I borrowed this phrase years ago when Sony used it one of their advertisement and it always stuck with me. The P303 has gain. The input sensitivity of the P303 are as follows:

MC input 100uV
MM input 2.5mV at 100hz
High level input 150mV

The rated output voltage is 1.5V. Using the standard gain formula (gain=20Xlog(output voltage/input voltage) this translates to approximately 84 dB, 55 dB, and 20 dB respectively through various inputs. I apologize for this confusion.

There's four gain blocks in the P303. The first gain stage is the MC amplifier which is a flat gain amplifier with approximately 28 dB of gain. This stage employs 6 (3 upper and 3 lower in parallel) transistors running in push-pull configuration. The second stage is the MM amplifier which compensates for the RIAA equalization and has a gain of approximately 36 dB at 1000hz. This circuit utilizes a 3 stage complementary push pull topology where even the the first stage differential amplifier is operating in push pull mode. The 3rd stage is the line preamplifier which has a gain of 20 dB and utilizes a 2 stage complementary push pull topology. Again a differential amplifier in push pull mode is used in the first stage. A unique volume control is employed in the line preamp whereby there's 2 sets of potentiometer (1 in front of the line preamp and 1 after) to lower residual noise. The 2 sets are ganged together in the volume potentiometer assembly to act in unison. The fourth stage is the push pull buffer amplifier which has no voltage gain but enough current gain to provide low output imipedance to drive any power amplifier.

I've been asked by many audiophiles why you need a preamp. Many audiophiles use a power amplifier with volume control and can feed their high level source directly into the power amplifier. In my opinion, I see no problem with this if the power amplifier has enough gain to attain sufficient volume level and if the output impedance of your source won't degrade the sound quality by directly driving the power amplifier.

Having a preamp provides the following functions:

1. Gain to play back moving coil cartridge.
2. Gain plus proper equalization to play back vinyl using a moving magnet cartridge.
3. Source selection.
4. Line level gain if required plus any attenuation using the volume control.
5. Proper output impedance using the buffer stage to drive any amplifier.

If none of these functions are required, bypassing the preamp is highly recommended.

Essentially a passive preamp has no gain and only attenuation. A passive preamp should introduce the least amount of nonlinearity because there's no gain stage in its path. I hope I didn't confuse you.

With warmest regards,

Tom Ishimoto
Nortrhidge Electronics"

Pa do sad sam slušao među ostalim 3 sistema koji su bili na Full lampama,jedan je najbolji kojeg sam čuo do sad,drugi je drugi najbolji do sad a treći je vise nego dobar!😊

E da upravu si lampe idu sam malo starijim i iskusnijim audiofilima!

...evo cijela kolekcija + amp Onkyo M-505 za "samo" 20 000kn...

https://www.njuskalo.hr/hi-fi-ostalo/onkyo-ultimate-high-end-p303-t909-eq-u30-e30-m505-oglas-24339175

Da, imao je Onkyo puno jače stvari.

Prava Integra serija dole....