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The Cary Audio Design SLP-05 Ultimate Upgrade is a factory modification package for the Cary SLP-05 two-chassis Class A triode vacuum-tube stereo preamplifier. It upgrades the power-supply filtering and line-stage componentry rather than constituting a separate preamplifier model. The modification adds approximately 1,200 µF of UCC electrolytic capacitance to the high-voltage B+ supply, approximately 125 µF of polypropylene capacitance throughout the B+ supply, including a 100 µF polypropylene capacitor at the line-stage circuit board, and polypropylene bypass capacitors across the electrolytic filter capacitors. The line stage receives 1% Vishay metal-film plate-load and cathode resistors, while ten original coupling capacitors are replaced with Mundorf MCap coupling capacitors. Cary describes the changes as intended to improve power-supply filtering, noise performance, midrange texture, bass fullness, and overall smoothness. The underlying SLP-05 includes a remote-controlled volume control and muting, headphone output, Cinema Bypass, tape-monitor loop, balanced and unbalanced connectivity, and a separate external power supply.
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The Symmetrical's signal-to-noise is 95 dB against the SLP-05 Ultimate Upgrade's 90 dB, its output voltage 1.0V RMS against 2.0V RMS, and its output impedance 70Ω against 400Ω. Both share thd (0.030%).
The SLP-05 matches the SLP-05 Ultimate Upgrade on signal-to-noise (90 dB), thd (0.030%), output voltage (2.0V RMS), and output impedance (400Ω).
Both turn up in the same documented systems.
The ATE-2001's signal-to-noise is 78 dB against the SLP-05 Ultimate Upgrade's 90 dB, its thd 0.080% against 0.030%, and its output impedance 2000Ω against 400Ω. Both share output voltage (2.0V RMS).
The VK-P80's signal-to-noise is 73 dB against the SLP-05 Ultimate Upgrade's 90 dB, its thd 0.100% against 0.030%, its output voltage 1.0V RMS against 2.0V RMS, and its output impedance 600Ω against 400Ω.
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