Product DescriptionThe TUBE-TECH PE 1C Program Equalizer contains a lowfrequency boost and attenuation section (shelving), anda high frequency boost section (peaking).

The high frequency section has variable bandwidth aswell as attenuation (shelving).

The filter section is of the the passive type followed by atube based push-pull amplifier to restore the gain.

Input and output are balanced as well as fully floating.Input and output transformers come with a static screenbetween the primary and secondary wirings.

• 10 high frequency boosts with variable bandwidth: 1, 1.5, 2, 3, 4, 5, 8, 10, 12 and 16 kHz (0 to +18 dB with sharp bandwidth,0 to +10 dB with broad bandwidth)

• Frequency response @ -3 dB: 5 Hz to 40 kHz • Low noise: < -85 dB @ -10 dB gain • No insertion loss • Clickless In/Out switch

The TUBE-TECH PE 1C is a passive tube based program equalizer designed to meet the exactingstandards of even the most demanding studio engineers.

tube based equalization done right

PROGRAM EQUALIZER

Product Features

• Passive equalizer • Tube based push-pull amplifier • 4 low frequency boosts: 20, 30, 60 and 100 Hz

(0 to +14 dB) • 4 low frequency attenuations: 20, 30, 60 and

100 Hz (0 to -18 dB) • 3 high frequency attenuations: 5, 10 and 20 kHz

(0 to +18 dB)

PE 1C

s o u n d e n g i n e e r i n g

PE 1C technical specifications

ImpedanceInput: 600 ohmOutput: < 60 ohm

Frequency response @ -3 dB: 5 Hz to 40 kHz

Distortion THD+N @ 40 Hz0 dBu < 0,15 %

+10 dBu < 0,15 %Max. output: +26 dBu < 1 %Max. input: +21 dBu < 1 %

Noise Rg=200 ohmUnweighted: < -85 dBuCCIR-468-4: < -75 dBu

CMRR @ 10 kHz: < -60 dB

Gain: 0 dB

TubesECC 82 1 pcECC 83 1 pc

DimensionsHeight: 3 units 132 mm 5,2" Width: 483 mm 19,0" Depth: 170 mm 6,7"

WeightNet: 4,0 kg 8,8 lbs.Shipping: 5,8 kg 12,8 lbs.

Power requirements@ 115 V/230 V, 50-60 Hz: 22 W

NotesAll specifications @ RL=600 ohmLydkraft reserves the right to alter specifications without prior notice

Dealer

Mose Allé 20 • 2610 Rødovre • Denmark • T +45 3871 0021 • F +45 3879 0091 • www.tube-tech.comLYDKRAFT

LYDKRAFT ApSMose Allé 20, DK2610 Rødovre

Denmark

1

TUBE-TECH PE 1Cprogram equalizer

DESCRIPTION

The TUBE-TECH program equalizer PE 1C contains a passive filter and a tube (valve)based amplifier to restore the loss from the filter.The filter has a low frequency boost/attenuate section with 4 selective frequencies, a highfrequency boost section with a variable bandwidth and 10 selective frequencies and a highfrequency attenuation section with 3 selective frequencies.

The filter is placed directly after the input transformer therefore eliminating noise from theamplifier when boosting either low- or high frequencies.

The amplifier consists of two tubes (valves) in push-pull configuration (one ECC 83 as thepre-amp and phase splitter, and one ECC 82 as the output stage), and an outputtransformer.

Both input and output are balanced and fully floating.The in/out key switches the filter in and out without clicks and changes in level, while theamplifier remain in the signal path.

The power supply for the pre-amp and phase splitter are stabilized and the heaters of bothtubes (valves) are fed with a stabilized DC voltage.

The whole amplifier (including input and output transformer) and the power supplies areplaced on one PC-board.

(030507)

LYDKRAFT ApSMose Allé 20, DK2610 Rødovre

Denmark

2

CONTROLS:

LOW FREQUENCYSECTION:

The low frequency section consists of a BOOST and ATTENuatecontrol and a LOW FREQUENCY switch located just below.

BOOST: The BOOST control is continuously variable from 0 dB to +14 dB.It is of the shelving type.

ATTEN: The ATTENuate control is continuously variable from 0 dB to -18 dB.It is of the shelving type.

LOWFREQUENCY: The LOW FREQUENCY switch determines at which frequency the

maximum boosting and attenuation is obtained.There is a choice of 4 frequencies:20, 30, 60 and 100 Hz.

HIGH FREQUENCYSECTION:

The high frequency section consists of two separate circuits:

1. A high frequency boost section, which contains a BOOST control, aBANDWIDTH control and a HIGH FREQUENCY switch.

2. A high frequency attenuate section, which consists of a ATTENuatecontrol and a ATTEN SELECT switch.

BOOST SECTION:

BANDWIDTH: The BANDWIDTH control is continuously variable from SHARP toBROAD. It controls the width of the high frequency boost curve.

(030507)

LYDKRAFT ApSMose Allé 20, DK2610 Rødovre

Denmark

3

BOOST: The BOOST control is continuously variable and is of the bell type.The gain is depending of the setting of the bandwidth control.When the bandwidth is in the sharp position the gain is from 0 dB to +18dB.When the bandwidth is in the broad position the gain is from 0 dB to +10dB.

HIGHFREQUENCY: The HIGH FREQUENCY switch determines at which frequency the

maximum boosting is obtained. There is a choice of 10 frequencies:1, 1.5, 2, 3, 4, 5, 8, 10, 12 and 16kHz.

ATTENUATE SECTION:

ATTEN: The ATTENuate control is continuously variable from 0 dB to -18 dB.It is of the shelving type.

ATTEN SEL: The ATTEN SELect switch determines at which frequency the maximumattenuation is obtained. There is a choice of 3 frequencies:5, 10 and 20 kHz.

IN/OUT: This lever switch switches the filter in and out of the signal path.The amplifier remains in the circuit.

(030507)

SPECIFICATIONS for TUBE- TECH PE 1C

Impedance TubesInput: 600 Ohm ECC 82 1 pcOutput <60 Ohm ECC 83 1 pc

Frequency response @ -3dB 5 Hz to 40 Hz DimensionsHeight: 2 units 132 mm 5,2”

Distortion THD+N @ 40Hz Width: 483 mm 19,0”0 dBU 0,15 % Depth: 170 mm 6,7”

+10 dBU 0,15 %Max. output: +26 dBU <1 % WeightMax. input: +21 dBU <1 % Net: 3,8 kg 8,4 lbs

Shipping: 5,6 kg 12,3 lbsNoise Rg=200 Ohm22 Hz-22 kHz < -85 dBU Power requirementsCCIR-468-4 < -75 dBU @ 115 V/230 V, 50-60 Hz 22 W

CMMR @ 10 kHz < - 60 dB

Gain 0 dB

NotesAll specifications @ RL = 600 OhmLydkraft reserves the right to alterspecifications without prior notice