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Pultec EQM-1S 2-Band Program Tube Mastering Equalizer

BH #PUEQM1S • MFR #EQM-1S
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Pultec EQM-1S 2-Band Program Tube Mastering Equalizer
Key Features
  • 30 to 100 Hz Low-Shelf Boost / Attenuate
  • Custom-Taper 21-Step Rotary Switches
  • 1 to 16 kHz Peak Boost
  • 5 to 10 kHz Shelf Boost
Enjoy precise, stepped control of your essential high and low frequencies with the Pultec EQM-1S, a 3 RU 2-band mastering EQ sporting custom-taper switched controls for precise recall, low shelf boost and attenuation from 30 to 100 Hz, and peak boosting of highs from 1 to 16 kHz. Along with a 5 to 10 kHz shelf boost and a 5 to 20 kHz shelf attenuation, this EQ allows for simultaneous boosting and cutting of the same frequencies for musical EQ curves.
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Pultec EQM-1S Overview

Enjoy precise, stepped control of your essential high and low frequencies with the Pultec EQM-1S, a 3 RU 2-band mastering EQ sporting custom-taper switched controls for precise recall, low shelf boost and attenuation from 30 to 100 Hz, and peak boosting of highs from 1 to 16 kHz. Along with a 5 to 10 kHz shelf boost and a 5 to 20 kHz shelf attenuation, this EQ allows for simultaneous boosting and cutting of the same frequencies for musical EQ curves.

The high band features adjustable bandwidth (Q) for broad or narrow sculpting. Further switches include EQ In and On/Off switches. The gain stages are handled by 12AU7, 12AX7, and 6X4 tubes. This equalizer is made in the USA.

Progressive-Taper Switches
The EQM-1S (mastering version) takes the EQP-1S / EQP-1A evolution a significant step farther by replacing the potentiometers with 21-position ELMA switches, loaded with precision metal film resistors to achieve custom tapers for each control. The current design implements Pultec's full-range, progressive-taper design, which provides 0.5 dB per-step precision for the first 50% of rotation and then progressively larger (1 or 2 dB) steps as the control is rotated from 50 to 100% of rotation.

This allows for precise control for subtle equalization on a mix bus or similar applications. Furthermore, the stepped controls make recall a breeze, and the precise tracking between units is essential for stereo image retention when using a pair on the stereo mix bus.

An Extra Boost
In addition to adding mastering controls, Pultec has replaced the 6 kHz peak boost center frequency with the 16 kHz center, which is so popular on the 1A/1A3 models. So, whether your track/mix needs the magical 16 kHz air band or the full 5 kHz / 10 kHz shelf boost, you have the option in a single equalizer.
UPC: 855095005290

Pultec EQM-1S Specs

General
Item Type
Equalizer
Number of Channels
Single-Channel
Circuitry
Tube (12AU7/ECC82, 12AX7/ECC83, 6X4)
Metering Type
No Visual Metering
EQ & Tone Shaping
EQ Type
2-Band Pultec-Style EQ
High
+18 dB at 1 kHz to 16 kHz (Bell)
+14 dB at 5 kHz to 10 kHz (Shelf)
-16 dB at 5 kHz to 20 kHz (Shelf)
Midrange
No
Low-Cut/High-Pass Filter
No
Connectivity
Audio I/O
1x XLR 3-Pin Balanced Mic Input
1x XLR 3-Pin Balanced Line Output
Digital Audio I/O
No
USB I/O
No
Performance
Frequency Response
20 Hz to 20 kHz ±0.5 dB
Input Impedance
600 Ohms
Output Impedance
50 Ohms
Power
Input Power
117 VAC, 60 Hz
Physical
Rackmount Size
3 U
Dimensions
19" / 48.3 cm

Pultec EQM-1S Reviews

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