SLP-03 vs Sonic Frontiers Line 1
The Line 1's thd is 0.010% against the SLP-03's 0.030%, its weight 11 kg (24 lbs) against 11.34 kg (25 lbs), and its height 115 mm against 114.3 mm. Both share output voltage (1.0V RMS).
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The Cary Audio Design SLP-03 is a stereo vacuum tube line-level preamplifier using four 12AU7 dual-triode tubes in a Class A, zero-feedback circuit with fully balanced signal topology and dual-mono architecture. It provides six single-ended RCA inputs plus one balanced XLR input, cinema bypass and tape loop, along with one pair of balanced XLR and two pairs of single-ended RCA outputs for flexible system integration. The SLP-03 features separate left/right analog gain stages and independently regulated power supplies for the audio circuitry, control logic, and display, contributing to low noise and strong channel separation. User conveniences include remote control, home-theater bypass, an RS-232 control port, and a front-panel headphone output derived from the tube audio stage. Known for its smooth, warm yet transparent presentation and wide soundstage, it delivers a rich, musical tonality typical of classic tube designs.
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Size, weight, and appearance
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Estimated price (community-sourced)
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The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The Line 1's thd is 0.010% against the SLP-03's 0.030%, its weight 11 kg (24 lbs) against 11.34 kg (25 lbs), and its height 115 mm against 114.3 mm. Both share output voltage (1.0V RMS).
The ProLogue Five's thd is 0.100% against the SLP-03's 0.030%, its output voltage 0.6V RMS against 1.0V RMS, its weight 17 kg (37 lbs) against 11.34 kg (25 lbs), and its width 395 mm against 431.8 mm.
The Stereo 90's thd is 0.100% against the SLP-03's 0.030%, its class Tube against A, and its weight 27.22 kg (60 lbs) against 11.34 kg (25 lbs). Both share output voltage (1.0V RMS).
The GFP-750's thd is 0.025% against the SLP-03's 0.030%, its weight 6.8 kg (15 lbs) against 11.34 kg (25 lbs), and its width 432 mm against 431.8 mm. Both share output voltage (1.0V RMS).
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Rogue Audio Ninety-Nine
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