Created: Thursday, 22 October 2020 09:44
Tube Tone is very intermittent = The Voltage and Bias is how tube tube tone is shaped like you know. Distortion comes from the pre amp stage in many cases, power tubes can give you contour and overall tone feel. Tube tone is more organic since it needs to heat up to get to the optimal voltage to produce the kind of sound the you are expecting. Having said that there is so many aspects which can affect tube (reference 1) sound, weather, room temp, tube wear, clean or dirty voltage, cold room, hot room, triod and cathode in the tube circuit. It's not as straight forward in tubes for them to be the same all the time. Tube models and Tube swapping does change the sound, it's not just the imagination of the user. Reasons why : refer to reference 1. The sound of tubes changes with the circuit: EL 34 Tubes mostly mid tone, 6L6 high and bottom sound and so on. As for Electro-harmonix vs Chinese or say Sovtek is a different type of thinking all together, the (reference 2) manufacturing process comes into play: the Russian Sovtek are sought after for a certain feel, now Electro-harmonix I heard are using those tubes now, the Chinese ones depending on new or old stock may be better or worse. The older stock is generally better tone most people say. So you see tube tone is not as straight forward as a load box test. (reference 3) The Term Headroom is also in the same breath here, The organic feel from the heating process, how much power the amp can create before the clipping circuit is engaged or distortion begins. Myself I use both Tube amps and Digital : Currently Running a ENGL E670 Special Edition EL 34 model and Axe-FX III I've used many tube amps Marshall 1975 JMP, JCM 800 2203,JCM 900, 1970 Purple Super Bass/Super lead the Hendrix model, Plexi, Fender Bassman, Randall Satan (why I mention this amp is because it has two types of tubes in the power stage KT88 and 6L6 plus pre amp (12AX7) tubes and others ... I can understand why you may question this area .. but its not as simple as discussing guitar wood being the tone, on acoustics yes it will have a large difference on electric not as much, because a good amount of tone comes from the pickups .. feel comes from how you play, as for how you feel about playing that instrument is another story.
Created: Sunday, 27 October 2019 13:06
Well yah its been a while but I have something cool to show off, the ENGL e670 is not in production any more but it has more features than any other version of the ENGL line. Its by far one of the best Amps I have ever used. In the past I have been trying out a true good list of devices
Marshall JCM 900
Marshall JCM 800
Marshall JMP 1975
Soldano SP77 with Marshall 9100
Axe FX II XL+, Axe Fx III
ENGL Power Ball I
ENGL Power Ball II
ENGL e670 Special Edition
Whats Different about the E670 : Well out fo the Box the Overdrive is refined sounding I found.
There are a tone of options, 4 channels .. plus Tube Driver Circuit and Depth Boost, Low end Punch, Noise gate
2 Effects Loops, Serial Effects Loop, 2 Presence for A, B
There is even a Cable Checker lol, I laughed about that but it is useful
There are options for 4 Cabinets and multi switch for 4, 8, 16 ohms
The Build Quality is very nice, I really like the steel knobs on front and on back
It has a Self BIAS switch between EL34 / 6L6
2 large transformers, it is a heavy amplifier thats for sure lol
but it plays great.
The universe of sound in a single amp, optimized for the next generation of ambitious guitar players. 6 basic sounds and 24 switchable sound options to store 128 MIDI presets. From crystal clean to smooth iazz, from Texas crunch to pounding rock, from fat metal punch to screaming leads. 100 watts of mega-power. It doesn’t get much better.
4 channels: Clean, Crunch, Lead 1, Lead 2, each in modern or classic mode, mega-low punch, noise gate, 3 FX loops (one serial, two parallel), tube driver circuit (extra channel plus EQ for direct switching to the power amp), 5 x ECC 83 preamp tubes.
100 watts (4 x 6L6GC tubes), half-drive mode
(50 watts), Master A/B switch, Presence A/B switch, Deep Boost, electronic tube protection circuit, Speaker A/B switch.
Balanced Recording out, cable test/impedance check, Speaker A/B out (4, 8, 16 ohms), Z-9 footswitch port,
MIDI-programmable functions at a glance, storable in any combination as required:
Channel switches, preamp boosts, normal/ultra bright, modern/classic mode, preamp defeat, FX loops, tube driver circuit, mega-low punch, Depth Boost, Reverb, noise gate, Master A/B, Presence A/B, Speaker A/B,
Half Power Switch (100/50 watts).
Dimensions & Weight:
71 x 27 x 29 cm, 26 kg