The Iron Age 500 series H9 module was designed as a tribute to famous British consoles of the
early 70s. The mic preamp and EQ combine for an instantly recognizable character, and are all
around useful tools in tracking or mixdown.

Each H9 features a discrete class A mic pre that offers 0 to 70 dB of gain in 10 dB steps. In mic
mode the signal starts with a Jensen input transformer. In line, a true-to-history unbalanced
input is available at +10, 0 and -10 dB gain. The preamp stage feeds a discrete high pass filter
set for 80Hz, followed by the classic three band passive EQ. A second gain stage acts as
makeup gain for the EQ, and a discrete class A buffer drives the line out. 48V phantom power
is available in mic mode only.

As with all Iron Age products, the H9 is as discrete as possible, designed and made in the USA.

Block Diagram

User's Manual

Technical Specifications

Gain Range

Mic                                                 0 - 70 dB

Line                                              -10 - +10 dB

Maximum Input Level                             

Mic                                               -2.5 dBu

Line                                              +25 dBu

Maximum Output Level                +15 dBu

Input Impedance                                    

Mic                                               1500 Ohms, transformer balanced

Line                                              10 kOhms, unbalanced

Output Impedance                        47 Ohms, impedance balanced

Frequency Response                    +/- 1 dB 20Hz-20kHz

Actual Measured Noise                 better than -90 dBA

THD @ +15 dBu output                 <1%

Power Consumption                      <120 mA

If you are interested in owning one, please contact us at: contact@ironageaudioworks.com