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Tube-Tech EM1A - Passive EQ Module

B&H # TUEM1A Mfr # EM1A
Usually ships in 7-14 business days

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This is a Special order item. Est. arrival at B&H is 7-14 business days (subject to availability). Your order will be charged at time of shipment. Item is non-cancelable and non-returnable.
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Not eligible for free Expedited Shipping
You Pay: $1,790.00
Product Highlights
  • 3 Band Pultec Design
  • Tube Based
  • For RM8 Desktop Systems

The EM 1A from Tube Tech is a modular passive tube equalizer based on the original Pultec design, for use in the company's RM8 tabletop enclosure. The filter has a low frequency boost/attenuate section with 4 selective frequencies, a high frequency boost section with a variable bandwidth and 10 selective frequencies, and a high frequency attenuation section with 3 selective frequencies. The filter is placed directly after the input transformer thus eliminating noise from the amplifier.

The amplifier consists of two tubes (valves) in push-pull configuration (one ECC 83 as the pre-amp and phase splitter, and one ECC 82 as the output stage), and an output transformer. Both input and output are transformer balanced (600Ω) and fully floating. The in/out key switches the filter in and out without clicks, while the amplifier remains in the signal path. A red LED shows when output clipping is approached. The input and output transformers come with a static screen between the primary and secondary wirings.

Passive EQ module for use with the RM8 tabletop enclosure
All tube-based push-pull amplifier
4-position bass frequencies with +14dB boost
4-position bass frequencies with -18dB attenuation
10 high-frequency selections with with variable bandwidth and variable boost 1
3 high-frequency selections with up to -18dB attenuation
No insertion loss
Click-less in/out switch
Filter Type Passive
Number of Channels Single
Inputs 1 x XLR (on power supply)
Also available via a global 25-pin D-Sub input connector
Outputs 1 x XLR (on power supply)
Also available via a global 25-pin D-Sub output connector
Maximum Input Level +21dBu
Frequency Bands Low Band:
20, 30, 60 and 100Hz
Mid-High Band:
1, 1.5, 2, 3, 4, 5, 8, 10, 12 and 16kHz
High Band:
5, 10, and 20Hz
Bandwidth Mid-high frequency variable, dependent on boost setting
Range (Boost/Cut) Variable
Maximum Output Level +26dBu
Frequency Response 5Hz to 40kHz, -3.0dB
Dynamic Range Not specified by manufacturer
Noise -85dBu, unweighted
Power Requirements 14W (available via desktop power supply)
Dimensions (WxDxH) 1.97 x 8.66 x 6.93" (50 x 220 x 176mm)
Weight 2.2 lbs (1.0kg)
Specialties Contains 1 ECC 82 and 1 ECC 83 vacuum tubes
Tube-Tech EM1A - Passive EQ Module
  • One (1) Year Warranty
  • Racks

    Required item: System Components (not included) are required to operate this device.

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