NFCA Headphone Amplifier
The Topping A30Pro is a satisfactory mid-range headphone amplifier with top specification, better sound, and a refined build.
APX555B limited our measurement again
The THD+N of A30Pro is no higher than 0.00006%, which means the A30Pro accurately restores 99.99994% of the original sound, what you get is what you input. The noise from the A30Pro is low enough, so APX555B limits the noise measurement of it, resulting in the need to amplify the noise of A30Pro by 100 times for indirect measurement.
Pushing the envelope
A30Pro uses the new specifically redesigned NFCA based circuit is optimized for terrific single ended performance. Massive paralleled high performance audio opamp architecture along with UHGF (Ultra High Gain Feedback) technology provides excellent DC and AC performance. High output current drive capability allows the amp driving low impedance headphones with ease. Ultra-low noise of 0.3uV is miles ahead of the competition, giving an absurdly high dynamic range of 145dB and no audible noise and darkest background for the most sensitive IEMs.
Incredible output power
The new specifically redesigned NFCA based circuit is optimised for terrific single ended performance. Huge output power and margin bring excellent control ability, and there are no more headphones hard to drive.
4-PIN-XLR + 4.4mm + 6.35mm Output
Since then, buying headphones does not have to consider whether the plug matches the headphone amplifier, because the A30Pro already provides you all in a compact body, including 4-PIN-XLR, 4.4mm, 6.35mm.
Adapt to various sensitivities
A30Pro provides 3 step gain settings, which can easily adapt to the huge sensitivity span from IEMs to high impedance and full size over-ears. Just connect the earphones and leave the rest to the A30Pro.
SE + BAL input pass through
When shutting down, the input signal is directly output to RCA or TRS without amplification, which will be more suitable for active speakers/monitor speakers when the DAC has pre-amplifier functions. Even better is when used with D30Pro, the excellent noise performance of D30Pro is not wasted.
Say good bye to the ground loops noise
When multiple equipment are used, RCA connection may encounter ground loop noise. A30Pro introduces a GND/LIFT switch as the solution. When in normal use, set it to GND; when encountering ground loop noise, switch to LIFT to change the ground point of the A30Pro from the it’s chassis to other equipment which it is connected to. Ground loop noise will disappear.
Quiescent current
A30Pro is designed with ample quiescent current. It will fully work in Class A operation when the headphone impedance is greater than 250 Ohms.
D30Pro is the best DAC for A30Pro
4 x CS43198, sound of quad DAC. THD+N<0.00009%, extremely low jitter for all inputs.
Anonymous –
Apron Belum 0400-27 66 x 58 cm Children's Belum
Orient FUX00004B (B-stock) B-Stock
Elixir Acoustic Nano PB 12- 53 ELIXIR
EBC 64-69 Porsche 911 2.0 (M Caliper) (Solid front rotor) Yellowstuff Front Brake Pads EBC
Mini Suncatcher: Crescent Moon/Balance Scout Curated Wears
Sterling Silver Black Rhodium Plated Black CZ Hinged Hoop Earrings Qgold
Collaforce Skin Hair & Nails 20 Ampollas | Dietmed Dietmed
Demon Slayer – Rengoku Plush 8"H Great Eastern Entertainment
Johnny Was Camo Legging Johnny Was
Oozy Reboot Pedals Spank
3-Pack General Electric GSS22WGMBCC Refrigerator Water Filter Replacement Denali Pure
Prime Time! Tシャツ A Hat in Time
Rainbow Feathers Playmat Bag Angry Fox
Michael Kors MAKENA MK2158 Cat Eye Sunglasses Michael Kors
PERFECT CIRCLE CB684P10 ROD BEARING PERFECT CIRCLE
2-Pack Replacement Filter Kit for Anchor Water Filter AF-5005 RO System – Includes Carbon Block Filters, PP Sediment Filter & Inline Filter Cartridge Denali Pure
Übergröße Camisole Cosabella
Tabitha Hi-Rise Vintage Black Wash Front Yoke Skinny Judy Blue Jeans Judy Blue
Nulo FreeStyle Grain Free Trout and Salmon Recipe Canned Cat Food Nulo
ASTONISHING X-MEN VOL 3 #34 DEADPOOL VAR MARVEL COMICS
1-Speed Chain Public Bikes
2-Pack Whirlpool GD5SHAXKQ00 Refrigerator Water Filter Replacement Denali Pure
14k Gold Small Flat Cross Pendant Necklace Carla Corp
Babolat Men's SFX 3 All Court Tennis Shoes Black and Silver BABOLAT
Propeller Alu. 3-blade 10"x14" 20-30 hp Poseidon Marine
Orient SEM7F002B Limited Edition Orient
1 & 2JZ VR38 COIL HARNESS prp
TUQUE UNISEXE, ELEVATION RAB