Και μιας και ανέφερες τον BAT εδώ υπάρχουν κάποια σχόλια για μετρήσεις από το stereophile.
''The spectrum of the VK-60's output, reproducing a 50Hz input tone at 24W into 4 ohms (2/3 rated power) is shown in fig.6. This is a fairly poor result relative to the best we've measured, and is indicative of the relatively high distortion at low frequencies into lower impedances. The largest artifacts are at 100Hz (-35dB, or about 1.7%) and 150Hz (-37dB, or about 1.5%). Interestingly, the results for the same output into our simulated real-world load (fig.7) are better: -46.5dB (just under 0.5%) at 100Hz, -44.6 (about 0.6%) at 150Hz, and visibly lower at higher frequencies as well.''
''Fig.8 shows the VK-60's output spectrum driving a combined 19+20kHz signal at the same indicated 24W into 4 ohms. At -37.7dB (about 1.3%) at 1kHz and -32dB (about 2.5%) at 18kHz and 21kHz, along with a considerable amount of noise, this is not a particularly good result.''
The test-bench results of the VK-60 were not atypical for a tube amplifier. But neither were they particularly impressive, especially considering the effort expended to build a balanced design (relatively unusual in a tube amp).—Thomas J. Norton
http://www.stereophile.com/content/...r-vk-6075-power-amplifiers-vk-60-measurements
Οπότε και φαίνεται λογικό ότι κάποιες φορές δυσκολευόταν με τα Virgo. Ηχείο από την ακριβή σειρά της Audio Physic με πιο πολύπλοκο crossover από το δικό μου αφού στην σειρά reference ο κάθε δρόμος έχει το δικό του κύκλωμα cross.
''The spectrum of the VK-60's output, reproducing a 50Hz input tone at 24W into 4 ohms (2/3 rated power) is shown in fig.6. This is a fairly poor result relative to the best we've measured, and is indicative of the relatively high distortion at low frequencies into lower impedances. The largest artifacts are at 100Hz (-35dB, or about 1.7%) and 150Hz (-37dB, or about 1.5%). Interestingly, the results for the same output into our simulated real-world load (fig.7) are better: -46.5dB (just under 0.5%) at 100Hz, -44.6 (about 0.6%) at 150Hz, and visibly lower at higher frequencies as well.''
''Fig.8 shows the VK-60's output spectrum driving a combined 19+20kHz signal at the same indicated 24W into 4 ohms. At -37.7dB (about 1.3%) at 1kHz and -32dB (about 2.5%) at 18kHz and 21kHz, along with a considerable amount of noise, this is not a particularly good result.''
The test-bench results of the VK-60 were not atypical for a tube amplifier. But neither were they particularly impressive, especially considering the effort expended to build a balanced design (relatively unusual in a tube amp).—Thomas J. Norton
http://www.stereophile.com/content/...r-vk-6075-power-amplifiers-vk-60-measurements
Οπότε και φαίνεται λογικό ότι κάποιες φορές δυσκολευόταν με τα Virgo. Ηχείο από την ακριβή σειρά της Audio Physic με πιο πολύπλοκο crossover από το δικό μου αφού στην σειρά reference ο κάθε δρόμος έχει το δικό του κύκλωμα cross.
:driver:
