Sapphire vs PrimaLuna DiaLogue Premium Power
The DiaLogue Premium Power's power @ 8ω is 42W against the Sapphire's 40W, its signal-to-noise 94 dB against 82 dB, and its output impedance 100000Ω against 2500Ω. Both share thd (0.100%).
AI-generated product photo — not official manufacturer imagery.
Sapphire
Hovland CompanyAmplifiersTube AmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$3,150
Around — community and catalog average, updates slowly
About the Sapphire
The Hovland Sapphire is a dual-mono tube power amplifier from the now-defunct Hovland Company, featuring a custom overbuilt power transformer with separate windings for each channel. It uses two 12AU7 and four EL34 tubes, producing 40 watts per channel into 8 ohms in stereo mode (16dBW) or 80 watts (19dBW) when bridged to mono. Renowned for its gorgeous aesthetics that draw attention even when off, it offers excellent sonic performance with low distortion and wide frequency response. Often paired with the HB-100 preamplifier, it was part of Hovland's high-quality lineup before the company ceased operations years ago.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 40W @ 8Ω
- Amplifier Class
- tube
- Minimum Impedance
- 2Ω
- Input Sensitivity
- 0.9V RMS
- Input Impedance
- 680000Ω
Analog Output
Analog signal output specifications
- THD
- 0.100%
- SNR
- 82 dB
- Output Impedance
- 2500Ω
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 464.9 × 133.35 × 440.1 mm (W × H × D)
- Weight
- 12.25 kg (27 lbs)
Key Specifications
Power: 40W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions