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The Best Fostex Hp-A4Bl of 2023 – Reviewed and Top Rated
2,194 Reviews Scanned
![[UL Listed] OMNIHIL 8 Feet Long AC/DC Adapter Compatible with FOSTEX HP-A4BL](https://m.media-amazon.com/images/I/41fArKQMB-L._SL160_.jpg)
- Adapter Rating: World Wide 100V ~ 240V 50/60Hz - UL LISTED
- All products are tested to exceed/meet standard specification
- OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection)
- 5 YEAR FREE WARRANTY
- 3RD PARTY NON OEM PARTS
- 5 YEAR FREE REPLACEMENT WARRANTY
- 3RD PARTY NON OEM PARTS
- CERTIFICATE: UL,ROHS
- Does Not Contain: Alkaline / Nickel / NIMH or Lithium Ion Batteries.
- The image shown here is indicative ONLY. If there are any inconsistencies between the image and the actual product, the actual product WILL govern.
- High Speed (8FT) 2.0 USB Cable
- OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection)
- 5 YEAR FREE REPLACEMENT WARRANTY
- 3RD PARTY NON OEM PARTS
- Does Not Contain: Alkaline / Nickel / NIMH or Lithium Ion Batteries.
- High Speed (15FT) 2.0 USB Cable
- OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection)
- 5 YEAR FREE REPLACEMENT WARRANTY
- 3RD PARTY NON OEM PARTS
- Does Not Contain: Alkaline / Nickel / NIMH or Lithium Ion Batteries.
- 24bit DAC headphone amplifier
- Offers up to DSD 5.6MHz and PCM 192 kHz for superior audio playback functionality
- Quick and easy hi-resolution playback in combination with Fostex Audio Player software
- Hi/Lo gain selection (10 dB) for wider range of headphones
- Asynchronous transfer mode
Last update on 2025-07-03 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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FAQ:
Q: Is the Fostex hp-a4bl a stand alone amplifier?
A: The Fostex amplifier is connected via USB 2.0, although it cannot be operated in stand-alone mode via USB as with the HP-A4. The volume controls handle both headphone output and line output, ensuring that the DAC can be used with additional amplifier hardware or active speakers. The digital output cannot be levelled.
Q: Is the hp-a4bl a balanced headphone amp?
A: Model HP-A4BL, designed being based on the current HP-A4, is an affordable USB DAC & Headphone amp offering balanced connection for headphones that is becoming more popular in the market. In addition to the balanced headphone out, it also complies with DSD Audio up to 11.2MHz.
Q: What kind of DAC does Fostex a4 use?
A: Fostex boxes are under-pinned mostly by their DAC sections, and seems to be where they spend much of their budget. The A3 and A8 both use Asahi Kasei DAC chips, and share many more similarities with one another relative to the A4 and A8. Of course, it ultimately depends on the pairing between the DAC, amp, and cans.
Q: Where is the USB port on the Fostex?
A: The USB and Optical inputs are on the rear of the unit as shown below. The USB supports USB 2.0 and supports 16 or 24 bit quantization with sampling rates from 44.1 to 192kHz for PCM and 2.8 (64), 5.6 (128), and 11.2mHz (512) DSD when the Fostex drivers are loaded.