CAT
SL1 Renaissance Black Path Edition
Power Supply
External power supply chassis contains the transformer’s magnetic field eliminating it as a source of hum.
Rectification, initial regulation, and noise filtering are all performed in the EPS thereby delivering pure quiet DC power into the main chassis eliminating the grain and dryness associated with noise intermodulation.
Slow filament power-up extends tube life greatly.
Quadruple cascaded audio power supply combines 22 zerofeedback regulators with over 30 energy storage and bypass capacitors for unequaled dynamic life, soundstage precision and musicality.
Isolation transformer eliminates entry of radio frequency noise through the AC power line yielding greater benefits than any of the expensive add-on power line conditioners without any of their sonic shortcomings.
Circuitry
Pure vacuum tube circuitry for vibrant and natural music.
Extraordinarily quiet high gain phono amp accommodates both high and low output cartridges.
Fastest tube preamplifier, without any of the high frequency circuit-induced edginess which slower preamps frequently substitute for real speed. This speed is maintained even into long runs of cable.
Lowest open loop distortion of any preamp yields unforced detail and resolution as no other preamp can.
Low feedback ratio eliminates the aggressiveness of high feedback designs and yet still maintains correct focus.
Matched output impedance snubs reflections on interconnects quickly, yielding exquisitely lucid midrange and treble.
Chassis
Very strong steel chassis with anti-RFI plating ensures hum and RF free operating environment for the circuits.
Damping material lines both chassis to stop mechanical resonances which would otherwise modulate the electric fields in the preamp.
Mechanical isolation from floor vibrations provided by high loss viscoelastic feet.
Quality
Exotic low loss circuit board material combines the transparency of hard wiring with the low resonant signature and musicality of a circuit board.
Amazing new high technology BLACK PATH capacitors used for the critical inter-stage coupling.
Balance and volume controls are military grade rotary switches with solid silver contacts wired with precision resistors.
CAT designed MC transformer is the flattest, fastest, cleanest transformer ever made, regardless of price.
The best sounding precision resistors are used everywhere for the best resolution and minimum unit to unit variability,
CAT coupling capacitors are made to our specifications and are better than any other audiophile grade capacitor.
Premium CAT audio wire used throughout.
Rhodium/Gold jacks for superior connection. Convenience
Front panel muting switch.
Internal high/low line stage gain switch allows gain optimization for all systems.
Automatic mute at turn on and turn off.
Record/Normal front panel taping switch
Extra set of main output jacks for A/V and special setups.
Load jack allows changing MC cartridge loading while listening to music.
Optional balanced inputs and outputs
Specifications
Gain (@1kHz): Line 25.8 dB (“high”) / 15.2 dB (“low”),
Phono 47dB MM / 58 dB MC
Gain Tracking: Line .05dB, Phono .05dB
Frequency Response: Line 0.1Hz to 800kHz+0, -3dB
Phono RIAA +/- 0.1dB 20Hz to 20kHz (MC & MM)
Harmonic Distortion (@ 1 volt): Line less than .0005%
Phono less than .001%
Slew Rate: Line 15 volts/microsec, Phono 10 volts/microsec
Maximum Output (@1kHz): Line & phono 50 volts rms
Input Overload: Line 1000 volts rms
Phono MM 250 mv rms at 1kHz, MC 70 mv rms
Noise: Line High 98 dBA, Low 109 dBA below2 volt output
Phono MM 97 dBA below 10 mv input, MC 107 dBA
Separation: Line greater than 90 dB
Phono greater than 90 dB
Input Impedance: Line 50 kohms, 20pf,
MM Phono 47.5 kohms, 180 pf
MC Phono 4K ohms (User adjustable)
Output Impedance: Line 100 ohms, Phono 50 ohms
Maximum Load: Line under 4000 pf, over 5000 ohms
Phono under 4000 pf, over 10,000 ohms
Dimensions: Main Chassis – 19.0” X 5.24” X 12.2”
Power Supply – 12,2” X 4.0” X 6.0”
Weight: Net 64 lbs., Ship 70 lbs.
Power Requirements: 120v, 60Hz, 80 watts (export version
available)
SL1 Legend Black Path Edition
Power Supply
External power supply chassis contains the transformer’s magnetic field eliminating it as a source of hum.
Rectification, initial regulation, and noise filtering are all performed in the EPS thereby delivering pure quiet DC power into the main chassis.
Slow filament power-up extends tube life greatly.
Quadruple cascaded audio power supply combines 22 zerofeedback regulators with over 30 energy storage and bypass capacitors for unequaled dynamic life, soundstage precision and musicality.
Isolation transformer eliminates entry of radio frequency noise through the AC power line yielding greater benefits than any of the expensive add-on power line conditioners without any of
their sonic shortcomings.
Circuitry
Pure Tube circuitry for vibrant and natural music.
Extraordinarily quiet high gain phono amp accommodates both high and low output cartridges.
Fastest tube preamplifier, without any of the high frequency circuit-induced edginess which slower preamps frequently substitute for real speed. This speed is maintained even into long runs of cable.
Lowest open loop distortion of any preamp yields unforced detail and resolution which must be heard to be believed.
Low feedback ratios eliminate the aggressiveness of high feedback designs and yet still maintain correct focus.
Matched output impedance snubs reflections on interconnects quickly, yielding exquisitely lucid midrange and treble.
Chassis
Very strong steel chassis with anti-RFI plating ensures hum and RF free operating environment for the circuits.
Damping material lines both chassis to stop mechanical resonances which would otherwise modulate the electric fields in the preamp.
Constrained layer damped top and bottom covers.
Mechanical isolation from floor vibrations provided by high loss viscoelastic feet.
Quality
Exotic super low loss circuit board material combines the transparency of hard wiring with the low resonant signature and musicality of a circuit board.
Amazing new technology BLACK PATH capacitors used for the highly critical inter-stage coupling.
Legendary Black Gate power supply caps.
46 position stereo volume control is a military grade rotary switch with solid silver contacts wired with precision resistors. Only one resistor is in the signal path.
CAT designed MC transformer is the flattest, fastest, cleanest transformer ever made, regardless of price.
The best sounding precision resistors are used everywhere
CAT coupling capacitors are made to our specifications and are better than any other audiophile grade capacitor.
Premium CAT audio wire used throughout.
Rhodium/Gold Jacks for superior connection. Convenience
Front panel muting switch.
Internal high/low line stage gain switch allows gain optimization for all systems.
Automatic mute at turn on and turn off.
Record/Normal front panel taping switch
Extra set of main output jacks for A/V and special setups.
Load jack allows changing MC loading while listening.
Optional balanced inputs and outputs.
Specifications
Gain (@1kHz): Line 25.8 dB (“high”) / 15.2 dB (“low”),
Phono 47dB MM / 58 dB MC (low) / 64dB MC (high)
Gain Tracking: Line .05dB, Phono .05dB
Frequency Response: Line 0.1Hz to 1.5 MHz+0, -3dB
Phono RIAA +/- 0.05dB 20Hz to 20kHz (MC & MM)
Harmonic Distortion (@ 1 volt): Line less than .0001%
Phono less than .0005%
Slew Rate: Line 15 volts/microsec, Phono 10 volts/microsec
Maximum Output (@1kHz): Line & phono 50 volts rms
Input Overload: Line 1000 volts rms
Phono MM 250 mv rms at 1kHz, MC 70 mv rms
Noise: Line High 98 dBA, Low 109 dBA below2 volt output
Phono MM 99 dBA below 10 mv input
MC(low) 110 dBA, MC high 116 dbA below 10mv input
Separation: Line greater than 100 dB
Phono greater than 100 dB
Input Impedance: Line 50 kohms, 20pf
Phono 47.5 kohms, 180 pf (user adjustable)
MC low 8 ,000 ohms, MC high 2,000 ohms
Output Impedance: Line 100 ohms, Phono 50 ohms
Maximum Load: Line under 4000 pf, over 5000 ohms
Phono under 4000 pf, over 10,000 ohms
Dimensions: Main Chassis – 19.0” X 5.24” X 12.2”
Power Supply – 12,2” X 4.0” X 6.0”
Weight: Net 80 lbs., Ship 85 lbs.
Power Requirements: 120v, 60Hz, 80 watts (export version available)