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Home
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Solid State Power Amplifiers
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Jeff Rowland
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Jeff Rowland 625.2 Power Amp Boxed
Jeff Rowland 625.2
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views this month
Posted On
7.03.2026
Last Update On
7.03.2026
Description
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English
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Mint condition - BoxedThe 625 incorporates many of the same technical features of the 725 amplifiers. Similar to the 725, the 625 signal circuitry is built upon a Rogers ceramic circuit board laminate material for lower dielectric absorption and energy storage.Precision LED based current sources have been implemented throughout the amplifier circuitry, along with 0.1% thin film SMD resistors for more stable operating points and lower noise. Custom designed Lundahl input transformers are implementedOutput Power 300 watts @ 8 ohms / 570 watts @ 4 ohmsFrequency Response 10 Hz – 150 kHz, -3 dBS/N Ratio 95 dB, ref. 1.0 watt @ 8 ohm loadOutput Noise < 100 µv, A-wtdCrosstalk > 91 dB @ 1 kHz, 74 dB @ 20 kHzInput Impedance 40k ohmsTHD + Noise < 0.001% @ 1 kHz, 8 ohmsDamping Factor > 200, 20 Hz – 20 kHzOverall Gain / Bal. or Unbal. 26 dBCommon Mode Rejection Ratio > 90 dB, 20 Hz – 20 kHzAbsolute Phase Non-inverting Pin 2 PositiveInputs 1 pair balanced (XLR)Outputs 2 pair parallel binding posts per channelPower Consumption Idle 100 wattsPower Consumption Standby < 0.5 wattAmplifier Weight 54 lbs. / 24.5 kgAmplifier Shipping Weight 64 lbs. / 29 kgAmplifier Dimensions (h/w/d) 5.75” x 15.5” x 16.25” / 146mm x 394 mm x 413mm
Mintzustand – BoxedDer 625 enthält viele der gleichen technischen Merkmale wie die 725-Verstärker. Ähnlich wie beim 725 ist die 625-Signalschaltung auf einem Rogers-Keramikplatinen-Laminatmaterial aufgebaut, um die dielektrische Absorption und Energiespeicherung zu verringern.Präzisions-LED-basierte Stromquellen wurden in der gesamten Verstärkerschaltung implementiert, zusammen mit 0,1 % Dünnschicht-SMD-Widerständen für stabilere Betriebspunkte und weniger Rauschen. Eigens entworfene Lundahl-Eingangstransformatoren sind implementiert: Ausgangsleistung 300 Watt @ 8 Ohm / 570 Watt @ 4 OhmFrequenzgang 10 Hz – 150 kHz, -3 dBS/n Verhältnis: 95 dB, Ref. 1,0 Watt @ 8 Ohm LastAusgangsrauschen < 100 μv, A-wtdÜbersprechen > 91 dB @ 1 kHz, 74 dB @ 20 kHzEingangsimpedanz 40k OhmTHD + Rauschen < 0,001 % @ 1 kHz, 8 OhmDämpfungsfaktor > 200, 20 Hz – 20 kHzGesamtverstärkung / Bal. oder Unbal. 26 dBCommon-Mode-Unterdrückungsverhältnis > 90 dB, 20 Hz – 20 kHzAbsolute Phase Nicht-invertierender Pin 2 PositiveEingänge 1 Paar symmetrisch (XLR) Gibt pro Kanal 2 Paare parallele Bindungsposten ausStromverbrauch Leerlauf 100 WattStromverbrauch Standby < 0,5 WattVerstärkergewicht 54 lbs. / 24,5 kgVerstärker-Versandgewicht 64 lbs. / 29 kgVerstärkermaße (h/w/d) 5,75" x 15,5" x 16,25" / 146 mm x 394 mm x 413 mm
En perfecto estado - En cajaEl 625 incorpora muchas de las mismas características técnicas que los amplificadores 725. Similar al 725, el circuito de señal 625 está construido sobre un material laminado de placa cerámica Rogers para menor absorción dieléctrica y almacenamiento de energía.Se han implementado fuentes de corriente de precisión basadas en LED en todo el circuito del amplificador, junto con resistencias SMD de película fina del 0,1% para puntos de funcionamiento más estables y menor ruido. Se implementan transformadores de entrada Lundahl diseñados a medidaPotencia de salida 300 vatios @ 8 ohmios / 570 vatios @ 4 ohmiosRespuesta en frecuencia 10 Hz – 150 kHz, -3 dBRelación s/n 95 dB, ref. 1,0 vatios @ 8 ohmiosRuido de salida < 100 μv, diafonía >A-wtd91 dB @ 1 kHz, 74 dB @ 20 kHzImpedancia de entrada 40k ohmiosTHD + Ruido < 0,001% @ 1 kHz, 8 ohmiosFactor de amortiguamiento > 200, ganancia total / bal. o unbal. de 20 Hz a 20 kHz. Relación de rechazo en modo común de 26 dB> 90 dB, 20 Hz – 20 kHzFase absoluta Pin no inversor 2 Entradas positivas1 par balanceado (XLR) Salidas 2 pares de postes de enlace paralelo por canalConsumo de energía en reposo 100 vatios Consumode energía Standby < 0,5 vatiosPeso del amplificador 54 lbs. / 24,5 kgPeso de envío del amplificador 64 lbs. / 29 kgDimensiones del amplificador (h/p/d) 5,75" x 15,5" x 16,25" / 146mm x 394 mm x 413mm
Mükemmel durumda - Kutuda625, 725 amplifikatörlerinin teknik özelliklerinin çoğunu barındırıyor. 725'e benzer şekilde, 625 sinyal devresi de daha düşük dielektrik emilim ve enerji depolama için Rogers seramik devre kartı laminat malzemesi üzerine inşa edilmiştir.Amplifikatör devresinde hassas LED tabanlı akım kaynakları ve daha stabil çalışma noktaları ve daha düşük gürültü için %0,1 ince film SMD dirençleri uygulanmıştır. Özel tasarlanmış Lundahl giriş transformatörleri uygulanmaktadır. Çıkış gücü 300 watt @ 8 ohm / 570 watt @ 4 ohmFrekans Yanıtı 10 Hz – 150 kHz, -3 dBS/N Oranı 95 dB, referans 1.0 watt @ 8 ohm yükÇıkış gürültüsü < 100 μv, A-wtdÇapraz Talk > 91 dB @ 1 kHz, 74 dB @ 20 kHzGiriş Empedansı 40k ohmTHD + Gürültü < %0.001 @ 1 kHz, 8 ohmSönümleme faktörü 200, 20 Hz – 20 kHzgenel kazanç / bal. veya unbal >. 26 dBOrtak Mod Reddetme Oranı > 90 dB, 20 Hz – 20 kHzMutlak Faz Ters Çevirmeyen Pin 2 PozitifGirişler 1 çift dengeli (XLR) Çıkış 2 çift paralel bağlama direği Kanal başına 2 çift paralel bağlama direğiGüç tüketimi Boşta 100 wattGüç Tüketimi Bekleme < 0.5 wattAmplifikatör Ağırlığı 54 lbs. / 24.5 kgAmplifikatör Taşıma Ağırlığı 64 lbs. / 29 kgAmplifikatör Boyutları (h/w/k) 5.75" x 15.5" x 16.25" / 146mm x 394 mm x 413mm
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