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Primare I21 BK integreret forstærker m. Remote
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3.500 kr.
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Primare I21 BK integreret forstærker m. Remote.
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Specifikationer/beskrivelse:
Primare I21 Integrated Amplifier
This integrated amplifier is based on the famous and highly renowned A20, I20 design.
The I21 is an integrated preamplifier and power amplifier with extraordinary performance for
its price.
High-performance power amplifier
The I21 incorporates a classic circuit design based on J-FET input devices and bipolar output
devices, typical of far more expensive equipment, giving high performance and excellent
reliability.
The amplifier is capable of delivering 75 watts into an 8 ohms load and incorporates full
speaker protection against faulty input signals. Two individual DC-servos together with DCblocking and protection circuit provide this state-of-the-art protection.
To increase dynamic range, the I21 amplifier design incorporates an improved buffer stage by
the use of the OPA2134 from Burr-Brown and capacitors from Vishay.
Careful design for operational stability
As with all Primare units, the I21 is housed in an alloy heavy gauge steel chassis, which
provides strength, rigidity, and screening, while being effective at damping vibrations from
external sources.
Display and audio circuits are isolated
The front panel design isolates the display circuitry from the audio circuitry to avoid
interference
Dual-Mono Design
The amplifier incorporates a massive 800VA toroidal transformer with separate windings for
left and right power amp channels, effectively providing each channel with its own mono
amplifier.
Clean power supply for the best possible performance
Each part of an electronic design has specific power requirements. Primare’s forensic
approach to ensuring that clean power is supplied throughout the design is a key part of its
design philosophy and has significant sonic benefits.
The sheer physical size of the I21’s toroidal transformer makes it an inherently good mains
filter and its low output impedance promotes good voltage stabilisation. Power to the driver
stage and preamp stage is individually regulated in seven steps, as is the digital supply to the
front panel.
Shortest signal paths
Short signal paths are secured by the use of SMD technology wherever possible. This is one
of the I21’s key design features as is a digital volume control to ensure excellent channel balance and a flat frequency response at any volume level.
Flexible inputs
The I21 preamplifier stage provides four inputs, labelled CD, TUNER, LINE 1, and LINE 2, to
cater for a flexible range of sources.
Fixed and variable outputs
The currently selected source is provided on two pairs of line-level outputs, for connecting the
I21 to other equipment. The TAPE OUT sockets are independent of the position of the volume
control, and allow you to connect the I21 to a tape recorder. The PRE OUT sockets are
controlled by the volume control, and can be used to connect the I20 to another output stage.
The amplifier incorporates massive high quality gold-plated speaker terminals suitable for
most audiophile speaker cables.
Intuitive user interface
In keeping with the philosophy of the Primare range of systems, the I21 can be controlled
through a very simple and intuitive set of front panel controls.
Alternatively all the functions of the I21 can be controlled by the C22 Remote Control supplied
with the I21, along with the other Primare components in your system.
Specifications
Output power per channel 2 x 75W into 8Ω,
2 x 125W into 4Ω
Speaker terminals 4 –16 Ω
Output impedance <0.08
DC offset <5mV (servo controlled)
Line inputs 330mV
Tape outputs 300mV
Frequency response <10Hz – 100kHz, -3dB
THD 0.05% (1kHz, 10V into 8Ω)
Signal-to-noise, line -100dB (A-weighted)
Power consumption, standby <12W
Peak current ±25A
Dimensions (WxDxH) 430 x 385 x 100mm
Weight 13.5kg
Nypris 15000,-
Kan afhentes i Kolding, eller sendes forsikret med GLS
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Sidst redigeret: 7.10.2025 kl. 19:09 ・ Annonce-ID: 14731556
