Preamplifiers
Prisma
The TIDAL Prisma is a reference preamplifier designed around a simple philosophy: source selection and volume control, executed without compromise. Its minimalist topology, fully balanced signal path, and carefully engineered multilayer PCB are designed to remain acoustically invisible between source and power amplifier. A fully balanced MC phono stage completes the design, offering the same uncompromising approach to analog reproduction. The result is an exceptionally transparent line stage that allows the music to remain the focus.
Technical Specifications
- Feature: Reference solid-state preamplifier with fully balanced architecture
- Feature: 3 x 25 VA ring-core transformers
- Feature: 20 independent, linear-regulated power supplies
- Feature: Galvanically isolated control section and analog circuitry
- Feature: Hand-selected and matched discrete amplifier components
- Feature: Symmetrical amplifier topology with only two solid-state stages in the signal path
- Feature: Four-layer PCB with mirror-symmetrical layout
- Feature: 32-step fully balanced relay volume attenuator
- Feature: Noble-gas-filled mini reed relays with ultra-short signal paths
- Feature: Galvanically and optically isolated volume control
- Feature: 3 x balanced line-level inputs
- Feature: 1 x fully balanced MC phono input
- Feature: 2 x balanced outputs
- Feature: 2 x RJ45 remote power outputs for compatible TIDAL power amplifiers
- Feature: Remote-controlled phase inversion
- Feature: MC phono stage with two-stage topology for an ultra-short signal path
- Selectable MC input impedance: 50, 80, 100, 130, 160, 200, 266, 330, 400, 570, 800, and 2,000 ohms
- Feature: Selectable high/low phono gain with 10 dB difference
- Line gain: 10 dB
- Phono gain: 20 dB
- Bandwidth: 1 Hz – 350 kHz (-3 dB)
- Distortion: <0.005%
- Noise: 100 dB (0.5 V output)
- Input impedance: 10 kΩ
- Output impedance: <40 Ω
- MC phono gain: 55 dB at 1 kHz
- MC phono input impedance: 10 Ω – 1.2 kΩ
- MC phono output impedance: 150 Ω
- Dimensions: 44 x 13 x 39 cm / 17.3 x 4.7 x 15.3"
- Weight: 32 kg / 70 lbs. including packaging
