Name: iBasso AMP14 | KORG Vacuum Nutube Amplifier Card for DX300 and DX320
Brand: iBasso
SKU: AMP14-BLACK
Price: 279.0 USD
Availability: InStock

iBasso AMP14 | KORG Vacuum Nutube Amplifier Card for DX300 and DX320-Bloom Audio

$279.00

Color

Black

Blue

Give your DX320 / DX300 improved tonality and soundstage and 4.4mm BAL outputs with iBasso's latest Nutube AMP14

Uses improved 6th Gen KORG Triode Vacuum Tube for rich overtones
Cathode Input for lower impedance and less interference
4.4mm Balanced PO + 4.4mm Balanced LO outputs
Dedicated battery for AMP card
Advanced circuit design for improved noise floor and noise reduction

iBasso AMP14 Blue Lifestyle Pic

An Engaging, Unique Vacuum Tube Sound

Provided by KORG and Noritake, this 6th Gen Nutube operates exactly as a conventional triode vacuum tube and creates the same characteristic rich overtones that are sought after in triode tubes. Concurrently, the Nutube achieves substantial power saving, miniaturization, and quality improvements when compared with a conventional vacuum tube.

The AMP14 completes voltage amplification through the Nutube, while giving AMP14 an engaging, unique vacuum tube sound while delivering excellent linearity.

4.4mm Balanced PO + 4.4mm Balanced LO

The AMP14 utilizes Nutube 6P1 as a voltage amplifier, followed by a JFET differential converter to realize the L-, L+, R+, R- differential output. AMP14 adopts two JRC volume control chips, which forms a total 4 channel true balanced volume control. The signal then passes through the 4 channel balanced output buffer stage. Pentaconn 4.4mm balanced sockets are used, which have excellent acoustic quality and durability.

Balanced PO Output: 5.2Vrms
Balanced LO Output: 1.8Vrms

iBasso AMP14 Blue Closeup

Cathode Input, Lower Impedance, Less Interference

The AMP14 adopts a cathode input. The cathode impedance is lower than the grid, resulting in reduced signal interference from external sources. AMP14 is designed to have excellent noise floor control. Also, the WiFi interference is low, which brings a better online streaming experience. The tube microphonic effect is also well controlled.

Dedicated Battery + Dual Linear Technology DC-DC Chips

The AMP14 card has a power design that helps achieve performance upper limits. The AMP section of the DX320/DX300 has its own battery power, which is perfect for the AMP14, as it is an AMP card with strict power supply requirements.

Two pieces of high performance DC-DC chips from Linear Technology, with a total of 4 DC-DC power supplies are utilized by AMP14. One DC-DC is 3.6V for the cathode through a low-noise LDO, and one is 14V for the anode of Nutube and one is +8V and one is -8V, which constitutes the 16V volt swing, which feeds the OP AMPS.

Advanced Circuit Design

Inherited from AMP9, the Toshiba 2SK209 field effect transistor is adopted as the Nutube signal output buffer.
Signal grounding and shield grounding are separated to prevent noise interference.
Appropriate negative feedback to the amplifier circuit effectively reduces distortion and extends the frequency bandwidth.
By adding a dedicated JRC ultra-low noise volume control, the noise floor is reduced when using low volumes or during quieter parts of the music. Transparency is also enhanced with this implementation.

Hand Matched: Every AMP14 is a Masterpiece

Each AMP14 is tested and matched with an AP audio analyzer with 3 multi-turn potentiometers on the AMP14 board, which are manually calibrated and matched by engineers to reach the optimal performance of the Nutube.

The AMP14 brings together a clean extended upper frequency and a sweet and engaging sound for your musical enjoyment.

AMP14 is Compatible with the DX300/DX320

Please update the firmware to the latest version to have optimized support.

If you have a DX320 Edition X, your included matching faceplates will be compatible with the AMP14 adapter.

When streaming, the AMP14 may experience subtle WiFi interference when data buffering. This is almost inaudible at normal volumes, and the sensitivity and impedance of different earphones may contribute to variations in WiFi interference.

Output port: 4.4mm

iBasso 1 Year Manufacturer Warranty

iBasso AMP14 Accessories

[{"id":39933540859979,"title":"Black","option1":"Black","option2":null,"option3":null,"sku":"AMP14-BLACK","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"iBasso AMP14 | KORG Vacuum Nutube Amplifier Card for DX300 and DX320 - Black","public_title":"Black","options":["Black"],"price":27900,"weight":454,"compare_at_price":null,"inventory_management":"shopify","barcode":"6971585541261","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":39933540892747,"title":"Blue","option1":"Blue","option2":null,"option3":null,"sku":"AMP14-BLUE","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"iBasso AMP14 | KORG Vacuum Nutube Amplifier Card for DX300 and DX320 - Blue","public_title":"Blue","options":["Blue"],"price":27900,"weight":454,"compare_at_price":null,"inventory_management":"shopify","barcode":"6971585541278","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

Excellent Warmth

I wasn't so sure it was a good idea to try/purchase the AMP14 considering I had already purchased the AMP16. So glad I took the gamble. AMP14 is a good companion amp module with different tube strengths. I found this amp has much better synergy with my Hifiman HE600 headphones. Even without the 12v DC input this adds a much better slam and warmth with that particular headphone. It's nice to have different amps for different use cases. Love the many options available from Ibasso.

Bought for my DX340

While made originally for the DX300/320, iBasso makes a faceplate to adapt the Amp12/13/14 for the DX340. I have used the stock Amp15 as well as the recently released Amp16, but prefer the Amp14. The Tube mode on the Amp16 was hit or miss for me. Sometimes it added a pleasant warmth to some recordings, but on others it just seemed to lack something in the texture of the bass and in the upper mids. I found myself switching frequently between its AB and Tube modes. So when Bloom restocked the Amp14 I decided to give it a try. While it lacks the optional power input of the newer DX340 amps, the Amp14 has a much more musical presentation than the Amp16’s Tube mode. Head to head it was clear to my ear at least that the Amp14 brought back the texture on the low end as well as filled back in the mids and trebles that seemed a bit lackluster on the Amp16 Tube-mode.

Notes: all amps were burned in at least 200 hrs. Also, a note on installing the Amp14…because the board is narrower, it does not mesh with the guide rails on the interior of the DX340. So it’s a little trickier to mount. I found it best to hold the DX340 vertically as you guide the card in.

Excellent Upgrade

Ibasso DX 320 , Amp 14 is an excellent upgrade, Tube vibes all the way! I have had No negative issues with this AMP, and the improved Headphone plugs, Nice!!

Glorious Sounds but not without some issues

I love the sound the DX300 produces with AMP14. However there is some faint noticeable ringing and EMI that I hear from time to time during quiet moments like skipping songs, connecting headphones /IEMs. I'm certain the AMP14 card could have benefitted from additional shielding. All that aside, AMP14 adds a very appealing flavor to the sound of the DX300.

Better in every way than AMP13, IMO.

Sound is more natural, tube-like, and dynamic, but the big plus is the interferences from Wi-Fi and movement are much reduced - not eliminated, but no longer bothersome.

iBasso AMP14 | KORG Vacuum Nutube Amplifier Card for DX300 and DX320