Pro MPA II
intermediate
$309
Gebrauchtmarkt: $255*
Technische Daten
3 von 7 Werten mit vermerkter Quelle- Type
- outboard_preamp·
- Added Gain dB
- 75✓
- Input Connector
- 2x 3-Pin XLR Mic (150-3000 Ω adjustable) + 2x 1/4" TS Instrument (>800 kΩ)·
- Output Connector
- 2x 3-Pin XLR + 2x 1/4" Line·
- Expert Description
- En: Two-channel valve preamp with continuously variable input impedance from 150 to 3000 Ω and a switchable plate voltage: at normal plate voltage the response runs 15 Hz to 48 kHz, at high plate voltage 15 Hz to 120 kHz. Maximum gain 75 dB, maximum input +19 dBu, maximum output +27 dBu on XLR. · Uk: Двоканальний ламповий преамп із плавно змінним вхідним опором 150–3000 Ω і перемиканням анодної напруги: за нормальної смуга 15 Гц – 48 кГц, за високої — 15 Гц – 120 кГц. Максимальне підсилення 75 дБ, максимальний вхід +19 dBu, максимальний вихід +27 dBu по XLR.·
- Provides Phantom Power
- yes✓
- Requires Phantom Power
- no✓
Kommentar des Toningenieurs
Gain Staging Advice
The plate voltage switch is the real character control: high plate voltage means more headroom and a cleaner, wider response, low plate voltage means the tube colours earlier. Neither changes the gain figure.
Production Warning
Variable input impedance down to 150 Ω loads a ribbon heavily. That is a tonal choice, not a fault, but it also changes the microphone's effective output level, so re-check gain after every impedance move.
Was im Datenblatt tatsächlich steht
Wörtlich von der Herstellerseite zitiert, mit dem Datum der Prüfung. Wir behaupten das Gedruckte, nicht die Absicht dahinter.
««Equivalent Input Noise: 129dBu (XLR, "A" Weighted)»»
ART print this preamp's equivalent input noise without a minus sign, while their own pages for the TPS II and the Tube MP print the same quantity as "-129dBu (A weighted)". As printed here the figure states 129 dBu of noise at the input, which is not a physical value for a microphone preamp; the intended reading is -129 dBu.
geprüft am 5.8.2026* Geschätzt über das Abschreibungsmodell (~83% Restwert). · geprüft am 5.8.2026