background image

SPECIFICATIONS for TUBE- TECH MEC 1A

Impedance

Tubes

Input, Mic. Preamp:

> 1,2 kOhm

ECC 81

3 pc

Input, DI:

> 1 Mohm/82pF

ECC 82

1 pc

Output

<60 Ohm

ECC 83

3 pc

Frequency response

@ -3dB

5 Hz to 80 Hz

Dimensions

Height: 2 units

88 mm

3,

5”

Distortion

THD+N @ 40Hz

Width:

483 mm

19,

0”

0 dBU

0,10 %

Depth:

205 mm

8,

1”

+10 dBU

0,10 %

Max. output:

+26 dBU

<1 %

Weight

Max. input:

+21 dBU

<1 %

Net:

5,5 kg

12,1 lbs

Shipping:

6,9 kg

15,2 lbs

Noise

Rg=200 Ohm

Output Gain @

+20 dB

+60 dB

Power requirements

22 Hz-22 kHz

< -82 dBU

< -60 dBU

@ 115 V/230 V, 50-60 Hz

30-45 W

CCIR-468-4

< -72 dBU

< -50 dBU

CMMR

@ 10 kHz

< - 60 dB

Gain

(0 to 10dB, 1dB step)
(20 to 60dB, 10dB step)

Mic. Preamp

20 to 70 dB

DI

10 to 60 dB

Compressor

Ratio:

1,5:1 to 10:1

Notes

Threshold

off to

20 dBU

All specifications @ RL = 600 Ohm

Attack

1 ms to 100 ms

Lydkraft reserves the right to alter

Release:

60 ms to 2 s

specifications without prior notice

Содержание TUBE-TECH 269608

Страница 1: ...tput or compression Frequency response 3dB 5 Hz to 60 kHz Low Noise 85 dBu 10 dB gain Conductive plastic potentiometers Reg power supply w toroidal transformer The MEC 1A encompasses the all tube based designs of the MP 1A Microphone Preamplifier EQ 1A Equalizer and CL 1B Compressor in a powerful two unit recording package designed and hand crafted to deliver the warmth of vintage quality recordin...

Страница 2: ... 10 dB step Mic Preamp 20 dB to 70 dB DI 10 dB to 60 dB Compressor Ratio 1 5 1 to 10 1 Threshold off to 20 dBu Attack 1 ms to 100 ms Release 60 ms to 2 s Tubes ECC 81 3 pcs ECC 82 1 pcs ECC 83 3 pcs Dimensions Height 2 units 88 mm 3 5 Width 483 mm 19 0 Depth 205 mm 8 1 Weight Net 5 5 kg 12 1 lbs Shipping 6 9 kg 15 2 lbs Power requirements 115 V 230 V 50 60 Hz 30 45 W Notes All specifications RL 60...

Страница 3: ... DI input is unbalanced and placed in the circuit directly after the input transformer The gain range for this input is 10dB to 60dB When in use the microphone input is disabled Equalizer The equalizer has low and high shelving filter with a gain range of 15dB each with 6 switchable frequencies and a band filter with a gain range of 20dB 12 switchable frequencies and a bandwidth control The shelvi...

Страница 4: ...cord tip bus 1 ring bus 2 The two jack socket on the rear panel is connected in parallel and both are input output VU Meter The vu meter can be switched between output level and compression Output gain A level control with a gain from off to 10dB is placed at the output of the unit MIC PRE AMP CONTROLS GAIN Coarse The gain switch has a range from 20dB to 60dB in steps of 10dB Fine The gain switch ...

Страница 5: ... and 26 The frequency is 3dB from max min Boost cut Determines whether the gain control shall be boosting or cutting EQ in out Switches the frequency network in and out COMPRESSOR CONTROLS RATIO The ratio control varies the ratio by which the input signal is compressed If the ratio selected is to 2 1 and the input signal increases 10 dB the output signal is only increased by 5 dB The ratio control...

Страница 6: ...ly independently OUTPUT GAIN The gain control is used to make up for the gain loss that takes place when the unit is compressing The gain control is continuously variable from off to 10 dB METER The VU meter switch has two positions 1 Compression The VU meter is reading gain reduction I t s r e s t p o s i t i o ni s 0VU and the amount of compression is shown as a decreasing deflection in dB 2 Out...

Страница 7: ...SET IN TUBE OP AMPS 1 The DC voltage in TP1 shall be 50mV Adjust with P1 THE GRE SHALL BE MARKED BETWEEN 1 005 1 175 ADJUSTMENT OF BASIC GAIN 1 Set the P A D on o f f 2 Set the L o wc u t on o f f 3 Set the gain control C o a r s e on 20 4 Set the gain control F i n e on 0 5 T u r na l l G a i n controls on the EQ fully CCW and the in out switch on O u t 6 Turn the T h r e s h o l d fully CCW and ...

Страница 8: ... 0 1dB Adjust with P7 located on the front PCB MIDBAND 1 Apply a signal of 1kHz 20 0 dBU to the mike input 2 Turn the GAIN control a 0 Turn the Freq switch to 1kHz 3 When switching between boost and cut observe that the level is exactly the same 0 1dB Adjust with P2 located on the front PCB ADJUSTMENT OF COMPRESSION TRACKING 1 Turn the THRESHOLD control fully counter clockwise 2 Set the RATIO cont...

Страница 9: ...an output reading of 0 0 dBU 6 Adjust P 14 until the meter is reading 0 VU 7 Apply a DC voltage of 250 0 mV into the side chain jack socket and observe that the output level has dropped to 10 0 dBU If this is not the case adjust the compression tracking see above 8 Adjust P 13 until the meter is reading 10 0 VU 9 Remove the DC voltage from the side chain jack socket by setting the bus select switc...

Страница 10: ... 1 Weight Max input 21 dBU 1 Net 5 5 kg 12 1 lbs Shipping 6 9 kg 15 2 lbs Noise Rg 200 Ohm Output Gain 20 dB 60 dB Power requirements 22 Hz 22 kHz 82 dBU 60 dBU 115 V 230 V 50 60 Hz 30 45 W CCIR 468 4 72 dBU 50 dBU CMMR 10 kHz 60 dB Gain 0 to 10dB 1dB step 20 to 60dB 10dB step Mic Preamp 20 to 70 dB DI 10 to 60 dB Compressor Ratio 1 5 1 to 10 1 Notes Threshold off to 20 dBU All specifications RL 6...

Отзывы: