Heritage audio O.H.M. Amp

Whether you want to use its balanced input, gold-plated RCA input, or even its professional-grade Bluetooth receiver with Burr Brown DAC, the O.H.M. Amp offers three independently selectable, high-quality input sources to make your headphones shine. Once the input source is selected, the O.H.M Amp's impedance selector allows you to match the signal output impedance to the particular impedance of your headphones to ensure you get the most out of your headphones, whether they're a set of earphones or a pair of headphones.
whether they're a set of the cheapest low-impedance headphones on the market or a top-quality audiophile model.

Its high-end diamond buffers, taken from our highly acclaimed R.A.M System 2000 and 5000 models, and Burr Brown op-amps for extreme fidelity and ultra-low noise, ensure that this powerful headphone amplifier will deliver audiophile-quality response, whatever headphones you have. The highly sought-after audiophile-grade Alps “Blue Velvet” output level potentiometer is the cherry on top of this magnificent headphone amplifier.
The O.H.M Amp also offers two different ways to connect your headphones, independent 6.35mm and 3.5mm jack connections on the front of the O.H.M Amp are provided so you can finally forget about noisy adapters... seriously, why hasn’t anyone thought of this before?

- The O.H.M Amp is the first ever impedance-matching headphone amplifier that adapts to your headphones to help them achieve their full potential.

- Full connectivity including independently selectable balanced, unbalanced gold-plated and Bluetooth inputs.

- Audiophile-grade Alps “Blue Velvet” output level potentiometer.

- Discrete diamond buffers, as found on Heritage Audio’s high-end R.A.M. system models.

- Burr Brown optical amplifiers for extreme fidelity and low-noise response.

- Professional-grade Bluetooth receiver (codecs: APTX, APTX LL, AAC, APTX HD and SBC) with Burr Brown DAC.

- Independent 6.35 and 3.5 mm (1/4” and 1/8”) jack connectors for the avoidance of noisy adapters.

- Thru output for daisy-chaining multiple O.H.M. amplifiers or using it as a high-end Bluetooth receiver.

- External high voltage (30V) low noise power supply for incredible power regardless of impedance, ensuring adequate dynamic range, signal-to-noise ratio and ultra-low harmonic distortion.