Graham Slee Novo Headphone Amplifier
Graham Slee Novo Headphone Amplifier
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Discrete? Surely we meant to say discreet?
The Novo is both: it's discreetly small - a definite miniature in a world full of behemoths; and it's discrete because that's the circuitry it uses - discrete transistors.
Discrete transistors? Yes, you heard right! Most budget headphone amplifiers let an op-amp do all the work. We wanted to show that we're capable of more than that.
The result is a very capable headphone amplifier, so capable that headphone manufacturer Shure bought some and Sennheiser featured it in a promotional video driving its flagship headphone.
You may never have heard of the Novo headphone amplifier before today, but now you have. It's definitely worth your consideration if you're after a budget headphone amp - a hi-fi amp for headphones!
| Item | Measurement |
|---|---|
| Headphone impedance range | 16 to 600 Ohms preferred; 8 to 2,000 Ohms acceptable |
| Power output (rms, both channels fully driven) | 32 Ohms: 27mW/channel; 600 Ohms: 23mW/channel |
| Distortion (THD plus noise, ref 1kHz) | 0.02% |
| Frequency response (-3dB) | 32 Ohms load: 27Hz - 35kHz; 600 Ohms load: 10Hz - 39kHz |
| Output noise (20Hz-20kHz, CCIR quasi-peak) | -84dB |
| Input sensitivity (for specified power output) | 32 Ohms: 250mV rms; 600 Ohms: 775mV rms |
| Channel balance | better than 1dB, "9 to 3 o'clock" positions |
| Crosstalk | Left to Right -57dB; Input to Input -68dB |
| Mute | Signal off mute, non-shorting |
| Output Stage | Bipolar class AB |
| Supply voltage | 24V DC |
| Size (approx.) | W: 107 x H: 50 x D: 125 (mm) inc. controls |
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