10.10 comparative analyzes

© M. Zollner 2011 2013

10-321

After "Valvetronix" now "

Valve State

" After VOX

Marshall

. Because there are also,

(in addition to famous Vollrohrenverstarkern), Attention:

Transistor

amplifier! Iiiih!!!! But no

care, dear guitarists, of course with an alibi tubes.

"The new Advanced Valvestate technology

gie (AVT) is the result of years of further development and innovation since the birth of the

original valve state amplifier. The resulting new hybrid technology is with your

sound on a beat all the 'virtual' and 'modeling' Ampkonzepte in the shade,

today and is therefore the best possible alternative to Vollrohrenverstarkern"

[Marshall]. Because:

"All AVT preamps work with an ECC83 (12AX7) pre-tubes. This ensures

authentic sparkling clean sounds and overtone rich, assertive Overdrive".

Yeah, that had once said. The actual non-linearities two anti-

Parallel LEDs are no, that says you rather not. And that the power of the amplifier, formerly unpleasant-

Challenged enes terrain of EL34, now a performance-IC dominates, the

"for use as

audio Class AB amplifier in HiFi field applications (home stereo, top class TV)"

Developed

was that, yes the only says the IC Data Sheet. Marshall says or writes (only),

that the AVT-power amplifier is unique. What we would like to believe. Marshall had in the

prospectus also can write that the typical thd this amplifier ICs

in the record-breaking THD = 0.005% [IC Data Sheet], but we thought the anschei-

End of course - remains unmentioned. That is the Boucherot-Widerstand

the AVT-amplifier like ABRA-breeding, it is known that the one experiences over the www. It seems

probably not at all to be so easy, this Marshall amplifier on the series across the RF-

Oscillations to sprout ... sounds familiar, since so many service technicians think.

If you believe Marshall, a single ECC83 for authentic tube sound. A

ECC83 prepress tubes

, but that does not mean that these tubes in the prepress stage works. Because

in the amplifier input is a NMJ072, followed by a M5201. The M5201 is a so-called

"Switching-OP", a switchable operational amplifier that either the clean or the

overdrive channel activated. With legitimate 2V/

S, but since the fan base white council:

Replace against the NJM2121 has 4V/

See also

not much, but no matter the priorities

where else seem to lie. For example in the case of in the feedback branch the anti-parallel

light-emitting diodes:

3mm, red

. Was Yellow sound different? Certainly! Of green or blue in the first place

not to mention. Marshall: only authentic with the red distortion-LEDs. Then must the ECC83

Ran with awe inspiring 109V supply voltage fired, and with serial 13.5-V-

Heating. 13.5 Volts? Yes - Marshall had tubes have always been suffering. The but is now

not the infamous cathode follower distortion, since JTM45 times for Marshalls, i.e.

Real Marshalls, is indispensable. No, both triodes work in cathodes base

circuit, without cathodes Elko, so very well-behaved.

"Authentic"

, as the brochure says.

Then come again an OP, so many transistors, why not once again two anti-

Parallel Lummies (3mm, red), a further two OPs (the reverb also wants to stand in accordance with

looped

♣

), and then it goes from the power module, for performance-IC. Was

certainly not easy, all the HF-stable on the boards to get: if it's a C93,

is it probably with only 92 capacitors do not have to create. And in the midst of:

The tubes, whose photo in the brochure at the top. Rohrenamp, advanced technology! If

this ECC83 now even replace by two FETs

ĄƪƶLJǛǛ ±±± QHLQ² DG

Is it self-word too much. Marshall, only with transistors ... brrr.

Over the years many manufacturers have tried to emulate that sought after all-valve sound using solid state technology

nology. All search attempts failed miserably up to now. Enter Marshall's Valvestate technology [Marshall].

♣

"ground", in order to even the language of the bachelor thesis is to maintain.