Wavestream KineticRemote LSx Linestage / Level 2usedWavestream Kinetics Remote LSx Linestage / Level 2The latest iteration of Wavestream’s revered line stage (with remote control and “Level 2” upgrades). "The LSx is designed to present musical timbres faithfully. Deviations from accurate timbr...8000.00

Wavestream Kinetics Remote LSx Linestage / Level 2 [Expired]


no longer for sale

The latest iteration of Wavestream’s revered line stage (with remote control and “Level 2” upgrades). 

 

"The LSx is designed to present musical timbres faithfully. Deviations from accurate timbres are unacceptable and therefore kept to a minimum. Again, according to Scott Frankland that apart from workmanship and build quality the major design goals are “circuit design, power supply design and parts selection”. 

 

In keeping with goal of circuit is simplicity, the circuit uses four 6DJ8 tubes with an input impedance of 40kΩ (nominal) ohms and an output impedance of 200 Ohms. This will provide an easy load for associated equipment and will allow the use of long interconnect runs without loss of high frequency information or the dulling of transients. The pairing amplifier’s input impedance should be at least 10kΩ for best results.

 

The preamp gain is adjustable (8dB, 14dB, 20dB, 25dB) in 6db increments for a maximum of 4V or 26db output.  

One more technical feature should be mentioned: the frequency response, which is flat from 20Hz to above 50kHz, +0, -0.1dB. This wide bandwidth gives musical transients the snap and speed of live instruments. Most preamps roll off the highs when the volume control is in the 3rd quadrant (12 o’clock to 3 o’clock). The frequency extension of the Linestage is independent of the volume control setting due to its low capacitance cascode input stage. 

The power supply features an all tube audio circuit with no unnecessary gain stages, transformers, FET’s or transistors. Only the power supplies contain solid-state devices which are chosen for their high speed, Low noise and DC stability. The three primary functions of the power supply are input filtering, AC line stabilization and audio circuit load regulation. The power supply must supply the current drawn by the audio circuit in step with the signal wave stream. Therefore, this current must be as quiet as possible and follow the signal demands without delay, overshoot, or interaction. Only well damped power supplies can give musical transients the snap and speed of live instruments. Because these power supplies are so quiet, music emerges from a much blacker background revealing more low level details. The power transformers are located inside the box so that power supply and audio circuit remain tightly coupled for life, which is something that connectors cannot guarantee. The transformers are deliberately sized to be overkill. As a result they are nearly vibrationless. Residual vibration is filtered by high-memory iso-grommets by which the audio board is mounted to the chassis. This isolation enables moderately microphonic tubes to be used, which might otherwise be useless in conventional preamps.

Parts selection in the Linestage is mil-spec and tightly matched. Each component is selected based on three parameters: 1) sound quality; 2) construction quality; and 3) long-term reliability. Moreover, parts are derated for worst-case temperature conditions. For example, resistors are spec'd at least 3–7 times below their power rating. Heat sinks are 2–3 times larger than necessary. Chassis are finished in black powder coating, the toughest paint finish available. All fasteners are stainless steel to prevent rust. All front panel lettering is engraved. The fit & finish is intended to last indefinitely. The latest iteration of Wavestream’s revered line stage (with remote control and “Level 2” upgrades). 

 

"The LSx is designed to present musical timbres faithfully. Deviations from accurate timbres are unacceptable and therefore kept to a minimum. Again, according to Scott Frankland that apart from workmanship and build quality the major design goals are “circuit design, power supply design and parts selection”. 

 

In keeping with goal of circuit is simplicity, the circuit uses four 6DJ8 tubes with an input impedance of 40kΩ (nominal) ohms and an output impedance of 200 Ohms. This will provide an easy load for associated equipment and will allow the use of long interconnect runs without loss of high frequency information or the dulling of transients. The pairing amplifier’s input impedance should be at least 10kΩ for best results.

 

The preamp gain is adjustable (8dB, 14dB, 20dB, 25dB) in 6db increments for a maximum of 4V or 26db output.  

One more technical feature should be mentioned: the frequency response, which is flat from 20Hz to above 50kHz, +0, -0.1dB. This wide bandwidth gives musical transients the snap and speed of live instruments. Most preamps roll off the highs when the volume control is in the 3rd quadrant (12 o’clock to 3 o’clock). The frequency extension of the Linestage is independent of the volume control setting due to its low capacitance cascode input stage. 

The power supply features an all tube audio circuit with no unnecessary gain stages, transformers, FET’s or transistors. Only the power supplies contain solid-state devices which are chosen for their high speed, Low noise and DC stability. The three primary functions of the power supply are input filtering, AC line stabilization and audio circuit load regulation. The power supply must supply the current drawn by the audio circuit in step with the signal wave stream. Therefore, this current must be as quiet as possible and follow the signal demands without delay, overshoot, or interaction. Only well damped power supplies can give musical transients the snap and speed of live instruments. Because these power supplies are so quiet, music emerges from a much blacker background revealing more low level details. The power transformers are located inside the box so that power supply and audio circuit remain tightly coupled for life, which is something that connectors cannot guarantee. The transformers are deliberately sized to be overkill. As a result they are nearly vibrationless. Residual vibration is filtered by high-memory iso-grommets by which the audio board is mounted to the chassis. This isolation enables moderately microphonic tubes to be used, which might otherwise be useless in conventional preamps.

Parts selection in the Linestage is mil-spec and tightly matched. Each component is selected based on three parameters: 1) sound quality; 2) construction quality; and 3) long-term reliability. Moreover, parts are derated for worst-case temperature conditions. For example, resistors are spec'd at least 3–7 times below their power rating. Heat sinks are 2–3 times larger than necessary. Chassis are finished in black powder coating, the toughest paint finish available. All fasteners are stainless steel to prevent rust. All front panel lettering is engraved. The fit & finish is intended to last indefinitely. 

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