Hifi-Lab a donc sorti il y a peu son petit ampli hybride de troisième génération, les différences par rapport aux générations précédentes :
-Régulateurs de tension LM317 doublés pour une meilleure dissipation thermique.
-Présence d'une fonction "Loudness" par appui sur un bouton.
-Potentiomètre remplacé par un atténuateur (commutation de résistances par un bouton multiposition)
-Temporisation d'une quinzaine de secondes, pour éviter le "plop" désagréable à la mise sous tension remplacée par une montée progressive du volume.
-Interrupteur de sélection de tube 6V-12V remplacé par un cavalier.
-Certains composants seraient de meilleure qualité.
D'après PinkFloyd, le béta testeur sur le forum Rock Grotto, ses qualités sonores seraient très proches du Project Sunrise de Dobiwan.
The G3 trounces (yes, "trounces") the G2 in the sonic department.... the scale, the dynamics, the pace, the rhythm, the timing, the headstage, the detail retreival, the macro detailing.... this is one "kick arse" little amp.
I have been listening (mainly) to my Project Sunrise headphone amp the past few weeks and was expecting a bit of a "downgrade" in the sonic dept. switching over to the G3 but, NO! It's very hard to seperate the two of them SQ wise.
If anything, I would say the G3 has the edge when it comes to dynamics and sheer GRUNT.... close your eyes and you'd think you were listening to an amp the size of a domestic fridge.... open them, shake your head.... YES, "that" sound "IS" coming out of that little thing!
The general tonality is what we commonly refer to as "tubey" but the detail retrieval and dynamic attack would suggest that this is a hybrid of the finest class.... the best of both worlds.
The "loudness" button basically whacks up the bass a bit and I would imagine this may be a good feature for AKG K-701 owners..... not the ideal solution but bass is "bass" Jim and if it takes a loudness "button" to provide that bass in a K-701 who's complaining?
I will have to ship this to my man in Surrey for a full report on the effect of the "bass" switch on the K-701 as I no longer have a pair of K-701.
The volco is quite peculiar.... it tracks PERFECTLY as you "notch" up through the clicks and is totally silent. Pause the CD, however, and notch up...you will hear crackling between the steps.... totally silent when it latches on to the next step but a bit noisy inbetween steps (ONLY when there is no source being amplified) Not a problem to me but quite a strange one, maybe Frans can elaborate.
Par contre, il est encore sensible au radio-fréquences, d'où le risque de parasites avec des téléphones portables ou des sources wifi très proches de l'appareil. Les radiateurs noirs des mosfets sont identiques à ceux du G2, donc sous dimensionnés, ça fera encore mini chauffage d'appoint pour l'hiver.
Le prix est de 119.99$ port compris, avec tube russe Electro-Harmonix de 6V ou 12V.
not measure to tube and transformer.
