High
Performance Channel Dividing Preamplifier
Features:
Unsurpassed Quality - 24 FET's (Field
EffectTransistors) exclusively engineered for high fidelity account for an
extremely low distortion of 0.03% at 1V output and high S/N ratio of 85 dB at
1V input.
Simple Dividing of Channels - The original
frequency range can be divided into 2 or 3 parts with channel selector screw.
With the TAD-43F (optional), 4-channel dividing for tweeter and super tweeter
is also possible. With two TA-4300F's, the dividing range can be made into 5
parts.
Precise Selection of Crossover Frequencies -
You can simply obtain precise crossover frequencies best fit for the
characteristics of your speakers with the crossover frequency selector. In 3
channel dividing, 6 steps between 150 - 1000 Hz for low/mid crossover frequency
range and 6 steps between 1,5 - 8 kHz for mid/high crossover frequency range
are available. In 2 channel dividing, 12 steps of crossover frequencies between
150 Hz - 8 kHz are also available with switchig of the channel selector screw.
Each
crossover frequency consists of NF type filter with the slope of 18 dB/oct.
Advanced Bass Control - Low channel frequency
shift switch changes the cut off frequency at low frequency range and
compensates the characteristics of speakers. Bass boost level control is
provided for bass boost at frequencies below 150 Hz having the slope of 12
dB/oct that boost at 20 Hz up to maximum 18 dB,
Effective Level Controls - Equalizes the unbalanced efficiency of
speakers to attain flat and smooth frequency response throughout.
Specifications:
System: Negative feedback type filter
Gain: +0 -1 dB
Crossover
Frequency:
Low : 150, 250, 400, 600, 800, 1000 Hz
High : 1,5; 2,5; 3,5; 4,5; 6; 8 kHz
Output
Impedance: less than 5 k Ω
Input
Impedance: 90 k Ω
Distortion:
Within the
passband : less than 0,03% at 1 V output; 0,1% at 4 V output ,
At the
crossover frequency : less than 0,05% at
1 V outoyt; 0,1% at 2,5 V output
Signal-to-Noise
Ratio: beter than 85 dB at 1 V input
(short circuited)
Maximum
Input Level: 4,5 V (less than 0,1%
distortion)
Frequency
Response: 10 Hz - 100 kHz +0 -1 dB
Semiconductors: 24 FET's ; 16 Transistors; 3 Diodes
Power
Requirements: AC 100,117, 220, 240 V
50/60 Hz
Power
Consumption: 5 W
Dimensions
(W x H x D): 200 x 149 x 316 mm
(7-1/8" x 5-7/8" x 12-7/16")
Weight: 3,8 kg (8lb 6 oz)
Supplied
Accessories: Connecting cord RK-74;
Polishing cloth
Optional
Accessories: 4-channel adaptor TAD-43F
