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Description

Product information "H2 Audio 2128 500-Series mic pre"

The H2 Audio 2128 faithfully recreates the legendary 0011 mic preamp circuit that defined the sound of countless ‘70s rock records — now in a compact, modern format. With its punchy character, open top end, and fast transient response, the 2128 delivers the same musical warmth and headroom that made Helios the choice of Led Zeppelin, The Rolling Stones, and countless other icons.
Safety Warnings
Safety Warnings: Die spezifischen Sicherheitshinweise für das Produkt sind in dessen Bedienungsanleitung aufgeführt.
Manufacturer information

H2 Audio

H2 Audio

Support@h2audio.com

118 E 7th St, Suite B, Royal Oak MI 48067, United States

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Tech-Info

-Rotary switches are all high-quality ELMA gold plated switches.
-Toggle switches for audio are all gold plated.
-Pot (output fader) has a conductive plastic element, sealed.
-Power rail is +/-16V (32V total) giving higher output before clipping vs the original Helios 0011 preamp.

2128 Mic Preamp:
Mic Input: Custom Lustraphone M10 input transformer providing 20dB of mic gain before the preamp.

Preamp:
180/0 toggle switch: inverts phase in 'up' position.
PAD switch: ~20dB pad
FILTER toggle switch: 0, 40 and 80Hz roll off.
P48 switch: 48V phantom power
GAIN dB rotary switch: 25 to 75dB of mic gain in 5dB increments.
OUTPUT control: output fader, allows distorted preamp effects while keeping nominal output level.

To the original 0011 preamp circuit (2128), H2 Audio has added a transformer balanced line output amplifier of original Helios design. 600 ohm drive capability up to 25dBm before clipping. Custom output transformer. The line output amplifier can add 10dB of gain after the mic preamp giving a total of 85dB of gain through the 2128.

Analog I/O connections:
Standard 500 series input/output connections on rear edge connector.

Mechanical:
Height: 5.25” (3U)
Width: 1.5”

Power source:
Power is provided by 500 series rack.