Crafted to deliver clear and accurate sound as close to the original as possible, the Astell & Kern ACRO CA1000 Desktop Headphone Amp and Audio System offers high-level output to drive even high-impedance headphones with 4 levels of gain and up to 15 Vrms. Internally, it sports four ES9060AS DACs, Astell & Kern's TERATON ALPHA processor, and bit-to-bit playback up to 384 kHz/32-bit and 22.4 MHz with native DSD512 support. You can output this audiophile-level, noise-free sound from multiple balanced (2.5 and 4.4mm) and unbalanced (3.5mm and 1/4") headphone jacks.

The ACRO CA1000 can also be used as a hi-fi sound system with multiple digital and analog inputs, or you can choose to wirelessly transmit high-quality music via Bluetooth 5.0, which supports 24-bit codecs, such as aptX HD and LDAC. You can even receive audio from mobile devices with BT Sink to playback through your headphones. The amp can be used stationary or mobile thanks to a built-in 8400mAh battery with up to 10.5 hours of playback and 256GB of internal storage, which can be augmented with an (optional) microSD card up to 1TB. However you use it, playback and settings are easily managed via the pop-up 4.1" 720p display mounted into the top of the unit.

High-Level Output Up to 15 Vrms    Pop-Up 4.1" 720p Display    Quad-DAC SABRE ES9068AS    384 kHz/32-Bit Audio & Native DSD512    2.5, 3.5, 4.4mm & 1/4" Outputs    Optical, Coaxial & USB Type-C Inputs    Up to 10.5 Hours of Battery Life    256GB Internal Memory & microSD Slot    Bluetooth 5 & aptX/LDAC Codec Support    Dual-Band 2.4/5 GHz Wi-Fi & AK File Drop

The 4.1" 720p pop-up display offers an adjustable tilt up to 60°, letting you easily view it from almost any direction.

This Astell & Kern chip works to provide close to original playback by incorporating power noise removal, efficient power management, and amplification with minimal distortion.

To help eliminate noise and interference for a pure audio experience, Astell & Kern physically separated the headphone connector circuits, as well as employing shield cans that have been given highly conductive, hyper-pure silver plating.

When the left and right channels are clearly separated, you can experience ear fatigue over long listening sessions. With Crossfeed, the ACRO CA1000 mixes part of a signal from one channel and sends it to the other. The effect of centering the sound stage helps alleviate this issue and you can choose from Shelf Cutoff, Shelf Gain, and Mixer Level options to optimize your own level of crossfade.

It can be extremely frustrating to have to continuously adjust the volume as each digital file plays back at different levels. With ReplayGain, the ACRO CA1000 amp automatically adjusts the sound levels across different music tracks to meet an identical volume level.

Dual-band (2.4/5 GHz) Wi-Fi

AK Drop lets you freely transfer files through a PC, smartphone, or FTP

Coaxial, Optical, and USB Type-C digital inputs

Analog component connection via RCA input

USB Type-C 2.0 PD for faster recharging

Durable aluminum shell with an angular design and analog metal volume wheel

Related Questions and Answers

Q: 1. How big of a micro sd can I use?

A: The GoPro Hero 7 will work with microSD up to 256 GB.

Q: 2. Does this camera come with a wrist strap?

A: This does not come with a wrist strap. But does not mean there aren't any. GoPro Hand + Wrist Strap BH #GOHWSTRAP • MFR #AHWBM-002 GTX STUDIO Floating Wristtrap Gopro Yellow2 BH #GTZ520 • MFR #Z-520 Revo Floating Hand Grip for GoPro BH #REACFHG • MFR #AC-FHG

Q: 3. Does an older GoPro’s Remote Control work with Hero7?

A: yes

Q: 4. What other Go Pro 7 accessories can the scaled down Go Pro 7 WHITE camera use? Audio I know is a wash - but what about filter holders?

A: This has an internal battery and no external mic input, so those will not be accessories you can use. However this camera will have the same mounting connection as the other GoPros, you will be able to use all of the same mounts and clamps.

Q: 5. hello is this camera water proof?

A: yes it is

Q: 6. Does this have zebra mode for video?

A: Unfortunately, zebra mode is not available on the OM-5 Mirrorless Camera.

Q: 7. What's the difference between black, grey and white besides the external battery ? What can't the 2 lower versions do ?

A: The grey and white do not offer: HyperSmooth and TimeWarp or front-facing LCD screens or swappable batteries (its all built-in now).

Q: 8. What is the battery life on the Hero7 White? Also, since it is not a removable battery, do I have to stop shooting and recharge it constantly throughout the day?

A: You would be able to get about 60-90 minutes of operations on a full charge.

Q: 9. Is the HERO7 Black the same size and footprint of the 5 and 6? Would all accessories (batteries, filters, etc.) work from the 5 to the 7?

A: yes

Q: 10. THE "Xuma 2.4A USB Charger with Folding Prongs" (5V / 2.4 A / 12 W) can be used to charge a Go Pro HERO 7 Black?

A: Yes. The Xuma 2.4A USB Charger with Folding Prongs can be used for Charging GoPro cameras including the GoPro Hero 7 Black.