vt4c

Responses from vt4c

Dual vs single sub
Stereo bass? Vinyl mixes bass to a single channel for practical reasons. Moreover, localization of low bass is a non issue as you can't really tell where its coming from, only the higher harmonics is a clue, AND most music only have one bass instr... 
Class D is affordable and sounds as good or better the SS/Valve why buy anything else ?
Even more important than bias class of amps, is the amount of non-DC signal from the power supply. You are listening to a power supply with a variable resistor connected to the speaker. Noise and inter mods end up in the speaker.GaN devices are ne... 
Does this exist? Preamp/Streamer/DAC with MQA, Roon and more
Room EQ? This is a bad bandaid for poor acoustics. Good acoustics will not gain any favors with decorators and significant others. 
What class of amplifier has the most high definition sound ?
Wrong question. It is related to results but does nor answer your question.Operating class is not a value graduation, while applicable to RF amps not so directly with audio. All low level stages are operating in class A, i.e. full current, they on... 
Does my amp have enough juice to power my speakers?
Low efficiency speakers is a trap to be avoided.Chasing your tail with low efficiency speakers limits the choices in amplifiers. The music has min 12dB peaks, speech even more. A low power amp will produce DC into a speaker when overdriven, really... 
High resolution digital is dead. The best DAC's killed it.
No matter how good the equipment, and/or bit resolution / sampling rate, it cannot fix a bad recording, and that's the bulk of them. 
Highest BUILD quality tube amps?
Printed circuit boards comes in different ratings, most common is FR4, but there are others, including some laminated on metal. It would be possible to have a poweramp with a PCB and have chassis mounted tube sockets with wired connections to a PC... 
GaN-based Class D power amps
GaN can generally handle higher voltage and has smaller die area thus lower capacitance and easier to switch. A silicon carbide substrate will better heat transfer as that material is better than silver in conducting heat.The "sound" is in the dig... 
GaN-based Class D power amps
As the GaN is used in the non-linear stage i.e. the output, it just operates as a very fast switch, the benefit of GaN is less heat, and higher switching frequency.GaN is a non-linear power device and really should not matter for sound quality. It... 
DC Offset Blocker/Killer - where to buy in the USA
Try adding large paper/oil caps in series with one of the AC line wires, the type used for running AC motors and compressors, to see if it removes the hum. If does not resolve the problem the toroid could have enough of a magnetic field to excite ... 
DC Offset Blocker/Killer - where to buy in the USA
Toroidal transformers has no airgap like old E I laminations or c-cores which means they have a very small stray field.A gap will minimize the DC saturation, so yes DC is bad but how much before the toroid starts humming from saturation. As the tr... 
This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers.
Back to back MOSFETs suggested here will work but they need a 10V floating voltage source or some photovoltaic coupler to a DC detection circuit. These have time delays. The tweeter should be able to handle a short single spike. Average power will... 
What preamp creates the largest soundstage?
Doubtful question."Sound stage" comes from the recording, it is not "created" in the pre-amp, power-amp, the interconnects, or the speakers.Equipment can only reveal or hide what was included in the recording. They cannot magically add what was no... 
The invention of measurements and perception
Lot of nice posts here.Measurements are needed for development, quality control etc. It would be impossible to design and produce equipment based only on auditory results.Math is philosophy which is applied in measurements. Measurements quantify a... 
Does a cheap cd transport create poor digital copies?
I suspect a CD can be read poorly intruducing errors. See the wikipedia for the Red books spec. There is some error corrction but not very strong. The PCM encoding of the digital output of a SPDIF has an analog component, as you will find out if y...