Heritage Audio O.H.M Headphone Matching Amp
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Studio-Grade Amp with an Audiophile's Soul
The O.H.M Amp’s impedance selector ensures a perfect match between the amp and your headphones, maximizing performance and delivering unparalleled sound quality at any impedance level. Choose from two headphone connection options—independent 1/4" and 3.5mm jacks—eliminating the need for noisy adapters and making switching effortless. At the heart of the O.H.M Amp are discrete diamond buffers, borrowed from the acclaimed R.A.M System 2000 and 5000 models, and Burr Brown Op Amps, delivering extreme fidelity, ultra-low noise, and audiophile-grade performance. Control your output with precision using the highly coveted Alps Blue Velvet potentiometer, a standout feature in high-end audio equipment.
Need flexibility? The O.H.M Amp can double as a premium Bluetooth receiver or link multiple units together via its built-in pass-through outputs. The custom-designed 30V external power supply ensures exceptional dynamic range, signal-to-noise ratio, and ultra-low harmonic distortion, for any audio application.
Whether on a studio microphone stand or elegantly placed on your desk with its rubber feet, the O.H.M Amp is designed for convenience and style. Unlock the full potential of your headphones with the O.H.M Amp—a true game-changer for audiophiles and professionals alike.
At a Glance
- O.H.M Amp impedance-matching headphone amplifier that accommodates the impedance of source audio with your headphones to bring them to their full potential
- Full connectivity including independently selectable balanced input, gold-plated RCA input, or Bluetooth receiver with Burr Brown amp
- Audiophile-grade output level with Alps Blue Velvet potentiometer
- Discrete diamond buffers as seen on Heritage Audio’s high-end R.A.M System models
- Burr Brown op-amps for extreme fidelity and ultra-low-noise response
- Pro quality Bluetooth receiver (codecs: APTX, APTX LL, AAC, APTX HD, and SBC) with Burr Brown DAC
- Independent 1/4" and 3.5mm jack connectors eliminating noisy adapters
- Thru output for chaining several O.H.M amps or using it as a top-grade Bluetooth receiver
- External low-noise, high voltage power supply (30V) for incredible power delivery at any impedance, ensuring an adequate dynamic range, signal to noise ratio and an ultra low harmonic distortion performance
Box Contains
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Heritage Audio O.H.M Headphone Matching Amp
- 1 x Power Supply
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Easy 30 Day Return Policy
If you are dissatisfied with your purchase for any reason, you may return it to Kellards within 30 days of the purchase date, subject to the conditions and exclusions below.
You may initiate a return or exchange by requesting an RMA at sales@kellards.com.
Securely affix your return label to the outside of the shipping package. Return shipping fees are the responsibility of the customer. We recommend you ship via insured ground service with a tracking number. We cannot be responsible for lost packages.
Return Address
Kellards Return3237 Greenpoint Ave.
Long Island City NY 11101
Eligibility Conditions
Please read conditions below. If all conditions are not met, Kellards reserves the right to refuse the return or to charge a minimum 15% restocking fee. All returned items must be in new condition, in their original unaltered box (including an intact UPC code) and must include all packing material, blank warranty cards, manuals and accessories. Kellards can only refund the original purchase price. Shipping and handling fees are nonrefundable.
Nonreturnable Items
- Electronic software downloads
- Opened consumable items (e.g., film, tapes, paper, bulbs, CD, DVDs, ink cartridges, etc.)
- Underwater equipment that has been submerged
Defective or Damaged Items
Defective items may be repaired, exchanged or refunded at our discretion for the same model or manufacturer's equivalent model.
Exchanges
Please allow 3-5 business days for mail-in exchanges to be processed.
Refunds & Credits
Once we receive and inspect your item(s), we will credit your account. Please allow 5-7 days for a credit to appear on your account. In most cases, we will issue your refund in the same way you made the original purchase.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
