Merkmale:
Ultra-Hochleistung
Der A50 verwendet dasselbe NFCA-Modul (Nested Feedback Composite Amplifier) wie das Flaggschiff A90. Die hybride Spannungs-Strom-Rückkopplungsarchitektur bietet zusammen mit der UHGF (Ultra High Gain Feedback)-Technologie eine hervorragende DC- und AC-Leistung. Durch die Fähigkeit zur Ansteuerung mit hohem Ausgangsstrom kann der Verstärker problemlos Kopfhörer mit niedriger Impedanz ansteuern. Ultra-niedriges Rauschen von 0,3uV ist der Konkurrenz meilenweit voraus, was einen absurd hohen Dynamikbereich von 144dB und keine hörbaren Geräusche und dunkelsten Hintergrund für die empfindlichsten IEMs ergibt.
With the A50s, Topping offers a high quality headphone amplifier and sedentary preamplifier combo, integrating both balanced and unbalanced connections. Its optimized circuits, based on very good audio components, allow a precise, detailed and musical restitution. The A50s is also designed to be versatile, capable of adapting to the vast majority of headphones and earphones on the market, including demanding models.
6,35 mm SE & 4,4 mm symmetrischer Ausgang
Obwohl es nur einen unsymmetrischen Eingang gibt, verfügt der A50s über eine eingebaute symmetrische Verstärkerschaltung. Daher kann er unsymmetrische Kopfhörer über einen 6,35-mm-Ausgang und symmetrische Kopfhörer über einen 4,4-mm-Ausgang ansteuern.
Balanced & Single-ended
Although the A50s has only an unbalanced input, it has a balanced amplifier circuit. It can therefore be used with unbalanced headphones on its 6.35mm jack output, or with balanced headphones on its 4.4mm jack output.
Ein ausgezeichneter Vorverstärker
Die NFCA-Module der A50s sind nicht nur in der Lage, den Kopfhörer anzusteuern, sondern gelten auch als Vorverstärker mit der gleichen ultrahohen Leistung. Im Vorverstärkermodus beträgt die Ausgangsimpedanz nur 20 Ohm, was für verschiedene Geräte sehr gut geeignet ist.
Ultra high performance NFCA module
At the heart of the A50s is an NFCA (Nested Feedback Composite Amplifier) module, identical to the one used in the brand's flagship, the A90. Its hybrid current/voltage architecture associated with UHGF (Ultra High Gain Feedback) technology offers excellent DC and AC performance. A high output current allows the amplifier to accompany all types of headphones. An ultra-low noise level of 0.3µV, a dynamic range of 144dB and the absence of background noise also allow the A50s to easily power the most sensitive EMIs.
Technical Data.
| Specifications | |
|---|---|
| Product type | Headphone amplifier Preampliier |
| Input | 1x Stereo RCA |
| Outputs | 1x Single-ended Jack 6.35mm headphone output 1x Balanced Jack 4.4mm headphone output 1x Stereo RCA preamp output |
| THD+N | Single-ended headphone output Jack 6.35mm : < 0.00007% @ 850mW, 32Ω, 1kHz, A-Weighting Single-ended headphone output Jack 6.35mm : < 0.00006% @ 90mW, 300Ω, 1kHz, A-Weighting Balanced headphone output Jack 4.4mm : < 0.00007% @ 3.4W, 32Ω, 1kHz, A-Weighting Balanced headphone output Jack 4.4mm : < 0.00006% @ 367mW, 300Ω, 1kHz, A-Weighting |
| THD |
Single-ended headphone output Jack 6.35mm : < 0.0004% @ 720mW, 32Ω, 20Hz-20kHz, 90kBW Single-ended headphone output Jack 6.35mm : < 0.0002% @ 77mW, 300Ω, 20Hz-20kHz, 90kBW Balanced headphone output Jack 4.4mm : < 0.001% @ 2.88W, 32Ω, 20Hz-20kHz, 90kBW Balanced headphone output Jack 4.4mm : < 0.0005% @ 307mW, 300Ω, 20Hz-20kHz, 90kBW |
| SNR |
Single-ended headphone output Jack 6.35mm : 137dB @ MAX OUT, 1kHz, A-Weighting Balanced headphone output Jack 4.4mm : 143dB @ MAX OUT, 1kHz, A-Weighting |
| Dynamic range |
Single-ended headphone output Jack 6.35mm : 138dB @ 1kHz, A-Weighting Balanced headphone output Jack 4.4mm : 144dB @ 1kHz, A-Weighting |
| Frequency response |
Single-ended headphone output Jack 6.35mm : 20Hz - 200kHz (±0.05dB) Balanced headphone output Jack 4.4mm : 20Hz - 200kHz (±0.05dB) |
| Output level |
Single-ended headphone output Jack 6.35mm : 21Vpp Balanced headphone output Jack 4.4mm : 42Vpp |
| Noise level |
Single-ended headphone output Jack 6.35mm : < 0.3µVrms @ G=L, A-Weighting Single-ended headphone output Jack 6.35mm : < 0.45µVrms @ G=H, A-Weighting Balanced headphone output Jack 4.4mm : < 0.6µVrms @ G=L, A-Weighting Balanced headphone output Jack 4.4mm : < 0.95µVrms @ G=H, A-Weighting |
| Crosstalk |
Single-ended headphone output Jack 6.35mm : -86dB @ 1kHz Balanced headphone output Jack 4.4mm : -128dB @ 1kHz |
| IMD CCIF |
Single-ended headphone output Jack 6.35mm : -116dB @ 18kHz + 19kHz Balanced headphone output Jack 4.4mm : -116 @ 18kHz + 19kHz |
| IMD SMPTE |
Single-ended headphone output Jack 6.35mm : -110dB, SMPTE4:1 @ 60Hz + 7kHz Single-ended headphone output Jack 6.35mm : -118dB, SMPTE1:1 @ 60Hz + 7kHz Balanced headphone output Jack 4.4mm : -110dB, SMPTE4:1 @ 60Hz + 7kHz Balanced headphone output Jack 4.4mm : -118dB, SMPTE1:1 @ 60Hz + 7kHz |
| Input sensitivity |
Single-ended headphone output Jack 6.35mm : 7.5Vrms @ G=0dB Single-ended headphone output Jack 6.35mm : 3.8Vrms @ G=6dB Balanced headphone output Jack 4.4mm : 7.5Vrms @ G=0dB Balanced headphone output Jack 4.4mm : 3.8Vrms @ G=6dB |
| Gain |
Single-ended headphone output Jack 6.35mm : 0dB @ G=0dB Single-ended headphone output Jack 6.35mm : 6dB @ G=6dB Balanced headphone output Jack 4.4mm : 6dB @ G=0dB Balanced headphone output Jack 4.4mm : 12dB @ G=6dB |
| Output impedance |
Single-ended headphone output Jack 6.35mm : < 0.1Ω Balanced headphone output Jack 4.4mm : < 0.2Ω |
| Output power @ THD+N < 1% |
Single-ended headphone output Jack 6.35mm : 2x 1.4W @ 32Ω Single-ended headphone output Jack 6.35mm : 2x 192mW @ 300Ω Balanced headphone output Jack 4.4mm : 2x 3.5W @ 32Ω Balanced headphone output Jack 4.4mm : 2x 760mW @ 300Ω |
| Output power @ 2Vrms IN |
Single-ended headphone output Jack 6.35mm : 2x 485mW @ 32Ω Single-ended headphone output Jack 6.35mm : 2x 52mW @ 300Ω Balanced headphone output Jack 4.4mm : 2x 1950mWW @ 32Ω Balanced headphone output Jack 4.4mm : 2x 208mW @ 300Ω |
| Load impedance |
Single-ended headphone output Jack 6.35mm : > 8Ω Balanced headphone output Jack 4.4mm : > 8Ω |
| General | |
|---|---|
| Power supply (included) | 15VDC |
| Housing material | Aluminum |
| Dimensions | 11 x 12.3 x 2.6cm |
| Color | Black |
| Package | 1x Topping A50s 1x Male Jack 6.35mm to female Jack 3.5mm 1x Power supply |
