atmasphere
Responses from atmasphere
| Speaker wire impedance? Speaker impedance? @immatthewj As a general rule of thumb, no matter what speaker cable you have, its good practice to keep it as short as possible. This is why monoblock amplifiers are common in high end audio as it allows the shortest cable length possible. If th... | |
| Speaker wire impedance? Speaker impedance? basically you are saying that measurements I took with my meter set to ohms are probably not accurate? @immatthewj Yes. You need a really special Ohmmeter to read the actual resistance of most speaker cables! You were far more likely reading the ... | |
| Power amplifier longevity… thoughts? @audiofilo123 As a general rule of thumb, the cooler the amp runs the longer it will last. Electrolytic capacitors, which are used in the power supplies of most electronics, don't like heat and so last longer in a cooler environment. To give you ... | |
| Anyone else excited for this Borresen subwoofer?!!! All technical and sensationalist jargon aside...the simple ability to delay the mains, very easily accommodated in the multichannel or pro world to make life a whole lot easier...but, a freaking rarity in purist hifi. @deep_333 In many rooms yo... | |
| Recommendation for tube preamp I’m not sure I understand what a "passive equalization circuit" consists of. @jlbkmb1958 In a phono section the equalization can be in a feedback loop or can be independent of feedback, the latter of which is a resistor/capacitor network which ... | |
| Recommendation for tube preamp How do the design a balanced phono stage without any solid state components in the signal path? @jlbkmb1958 The tubes we use are 12AT7s, which have two triodes inside a single glass envelope. The input signal is applied through an XLR connec... | |
| Recommendation for tube preamp Is there any such thing as a balanced fully tube phono amp? @jlbkmb1958 Yes. The first balanced tube phono sections were made by Atma-Sphere in 1989. | |
| Best tube amp for Wilson Watt/Puppy The Watt/Puppy has an impedance dip at about 2KHz. This is there to absorb energy since there is a 2KHz resonance in the tweeter. This is why the speaker had a reputation for brightness with solid state amps, because solid state amps will try to m... | |
| Hot off the press...Technics SL 1300G Based on specs, the 1300 essentially has most of engineering of the 1200G/SP10 Naturally, Technics did things to meet the P.P . Out of the box, a stock 1200G can be a "done" piece. The aesthetic is the deal breaker for me. @tablejockey I k... | |
| DC Offset Issue in Don Sachs Preamp @jbhiller If this problem continues, one of the more common reasons is failure of the bypass capacitor on the power switch. This can result in a loud pop at times, depending on the Voltage of the incoming AC line when you shut it off. So it can se... | |
| Amps that don’t impersonate space heaters. You need 1 very good watt to drive those speakers. Even Class A, 1-5 watts may remain extremely inefficient but if you you were to take say a 5w PX25 amp, it will burn off 15w x 2 instead of 90w. Flea watt tube amps are the way to go. A good c... | |
| Power Amplifier - Maximum Resolution & Detail! Ime, the higher you go up in price doesn't necessarily guarantee that you could experience the above mentioned. It seems to come down to the nitty gritty of the circuits under consideration, i.e., the black art of power delivery and analog circui... | |
| Amps that don’t impersonate space heaters. One recurring theme I encountered in researching this phenomenon is that bass roll-off is a common trait among amps employing zero global feedback. @helomech I've seen zero feedback amps that go full power to 1Hz and don't seem to lack any bass a... | |
| Electrostatics and tubes The advantage ESLs have over other kinds of speakers is the fact that the Modus Operandi of operation is powered. In a conventional speaker the voice coil moves when current is put through it in response to the magnetic field that is present. Tha... | |
| Amps that don’t impersonate space heaters. @hoosierinohio Agreed, but I run a class D because of its sound quality. The low heat and energy draw is a side benefit. |