Acoustic Signature Tango Reference MM/MC Phonopreamplifier
Condition Report
Score: 5 / 5 Mint
Visually and mechanically indistinguishable from new.
- ✓ Mains Cable
Product Overview & Specifications
The Acoustic Signature Tango Reference is a flagship phono preamplifier engineered for ultimate vinyl playback and reference-level signal fidelity. Designed to extract every nuance embedded in analogue grooves, the Tango Reference employs a single-ended Class A circuit topology that delivers rapid transient response, expansive three-dimensional imaging, and low harmonic distortion. All equalization capacitors are hand-selected and matched to achieve precise RIAA curve accuracy within ±0.1 dB.
Housed in a 18 kg chassis machined from a solid block of aluminum and stainless steel to shield sensitive low-level signals from external electromagnetic and mechanical interference, the Tango Reference provides comprehensive cartridge loading options. Front-panel controls allow instant switching between Moving Magnet (MM), Moving Coil High Output (MCH), and Moving Coil Low Output (MCL) gain settings, backed by extensive DIP-switch micro-adjustments for input resistance and capacitance. Internal power is supplied by an ultra-clean, linear power supply, which can be further upgraded via an external power supply input to isolate the circuit from mains grid noise.
KEY FEATURES & PROPRIETARY TECHNOLOGIES
- Single-Ended Class A Circuit Topology: Delivers pure signal linearity, fast transient speed, and exceptional spatial imaging without crossover distortion.
- Precision-Matched RIAA Equalization: Utilizes hand-measured, tight-tolerance capacitors to achieve an exact RIAA curve accuracy of ±0.1 dB.
- Front-Panel Selectable Gain & Cartridge Modes: Offers three distinct gain stages—42 dB (MM), 54 dB (MC High), and 66 dB (MC Low)—to perfectly match any MM or MC cartridge.
- Extensive DIP-Switch Impedance Loading: Wide array of selectable input resistance settings ranging from 10 Ohms to 47k Ohms for precise cartridge load tuning.
- Ultra-Dense Anti-Resonant Chassis: Precision-milled from a solid block of high-grade aluminum and stainless steel, forming an 18 kg shield against EMI/RFI and mechanical resonances.
- Super-Charged Linear Power Supply: Internal ultra-low-noise DC supply architecture, featuring dedicated input connectivity for external upgraded power supply expansion.
SPECIFICATIONS
| Specification | Detail |
|---|---|
| Product Category | Flagship Class A Phono Preamplifier |
| Brand / Manufacturer | Acoustic Signature |
| Model Designation | Tango Reference |
| Circuit Topology | Single-Ended Class A Circuitry |
| Supported Cartridge Types | Moving Magnet (MM), Moving Coil High-Output (MCH), Moving Coil Low-Output (MCL) |
| Amplification Gain (@ 1 kHz) | MM: 42 dB | MC High: 54 dB | MC Low: 66 dB (Switchable on Front Panel) |
| RIAA Equalization Accuracy | ±0.1 dB (Hand-Matched Capacitors) |
| Input Impedance Loading Options | 10 Ω, 55 Ω, 100 Ω, 196 Ω, 370 Ω, 465 Ω, 634 Ω, 979 Ω, 1734 Ω, and 47 kΩ (DIP-Switch Adjustable) |
| Channel Separation | > 92 dB (@ 1 kHz) |
| Analog Outputs | Unbalanced Stereo RCA Pair |
| Power Supply Architecture | Internal Linear PSU (24V DC Operating Voltage) | Upgradable via External PSU Input Connection |
| Chassis Construction & Materials | CNC Monoblock Solid Aluminum & Stainless Steel Anti-Resonant Shielding Housing |
| Dimensions (W x D x H) | 435 x 244 x 85 mm |
| Net Weight | 18.0 kg (39.7 lbs) |
| Manufacturer Warranty | 2 Years |
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