Negative output impedance

Loudspeakers act as reactive load and reach with any new transient on engagement or with a periodic signal for short momentís impedances down to less then 1 Ohm. In these moments the real power of an amplifier is needed. High power voltage performance at 4 and 8 Ohms are therefore not relevant. With traditional amplifier designs the limiting circuit responds with impedances close to 2 Ohms anyway at this is where literal "power plants" of power amps fail.

Our power amplifiers are consequently designed for voltage stability without using limiter circuits or loudspeaker relays. The unique overcompensated attenuation (negative output impedance) leads to a solution which takes the dynamic losses of cable, passive crossovers and inertia of the transducers in consideration, which makes these problems disappear. Far higher control of the membrane and clearly more dynamic are results of this exclusive ROWEN solution. The music appears to be more vivid. The tension and the expression of any single note played leads directly to the impression that the musicians are directly in front of you.

Absolute MONO power amplifier

  • power: 1×65W RMS 8Ω and 1×1000W 0.5Ω
  • pure discrete circuit without global feedback
  • toroidal transformer
  • executions:

Absolute ONE power amplifier

  • power: 1×240W RMS 8Ω and 1×3500W 0.5Ω
    2-channel: 2×65W RMS 8Ω and 2×1000W 0.5Ω
  • full-symmetric construction with two toroidal transformers
  • pure discrete circuit without global feedback
  • Links: manual (PDF)
  • executions:

Absolute SOCLE BI socle amplfier

  • power: 2×60W RMS 8Ω and 2×700W 0.5Ω
  • For the ROWEN loudspeakers S8, S10, S12, 1&1 and RS2
  • pure discrete circuit and toroidal transformer
  • adjustable 3 ways EQ
  • executions:

Absolute SOCLE TRI socle amplfier

  • power: 3×60W RMS 8Ω and 3×700W 0.5Ω
  • For the ROWEN loudspeakers A10, A12, RA1&1 and RA2
  • pure discrete circuit and toroidal transformer
  • adjustable 3 ways EQ
  • executions:

Absolute TWO power amplifier

  • power: 1×160W RMS 8Ω and 1×2200W 0.5Ω
    2-channel: 2×60W RMS 8Ω and 2×700W 0.5Ω
  • pure discrete circuit and toroidal transformer
  • power-supply output for ROWEN preamplifiers
  • Links: manual (PDF)
  • executions:

PA1 power amplifier

  • power: 1×65W RMS 8Ω and 1×1000W 0.5Ω
  • pure discrete circuit without global feedback
  • toroidal transformer
  • executions:

PA2 power amplifier

  • power: 2×60W RMS 8Ω and 2×700W 0.5Ω
  • pure discrete circuit and toroidal transformer
  • power-supply output for ROWEN preamplifiers
  • Links: manual (PDF)
  • executions:

PA4 4-channel power amplifier

  • power: 4×55W RMS 8Ω and 4×600W 0.5Ω
  • pure discrete circuit and toroidal transformer
  • power-supply output for ROWEN preamplifiers
  • Links: manual (PDF)
  • executions:

SA2bi socle amplfier

  • power: 2×60W RMS 8Ω and 2×700W 0.5Ω
  • For the ROWEN loudspeakers S4, S6, 2&2 and 2&2e
  • pure discrete circuit and toroidal transformer
  • switchable Bass-EQ
  • executions: