SONY TA-D88B 2-4Way Electronic Frequency Crossover Dividing Network Vintage


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Description

Operation confirmed.   
The appearance has small scratches, dullness, dirt, etc. due to normal use.  
For other appearances, please refer to the photo.


Filter units are mounted unit-2: 500, 800, 1kHz/unit-3: 1.25k, 2k, 2.5kHz/unit-4: 5k, 8k, 10kHz.

 *The power supply voltage is AC 120V specification.
Please be careful about the voltage in your country.
If the power supply voltage is different, you will need a voltage transformer.


Overview

Electronic crossover network capable of 2-way to 4-way multi-amp configurations.

The frequency band from DC to 100 kHz can be divided into up to 4 ranges.
Each range has a twin mono configuration with completely independent Lch and Rch signal paths for each range, and independent left and right power supplies to eliminate interference.

The circuit configuration consists of 8 channels of 4 ranges of active filters for bandwidth division, and each channel has a pre-buffer amplifier and an out-buffer amplifier with zero gain to prevent adverse effects with the preamplifier and power amplifier.

The active filter is a Bessel filter, which provides good sound connection and transient, and at the same time cuts off unwanted bandwidth sufficiently.

The filter unit is a plug-in type and can be freely set from 2-way to 4-way.

The wiring and elements have been carefully selected using the know-how gained from the TA-E88 preamplifier to improve the sound quality.

An audio muting switch and AC outlet are provided.

All thick panels and knobs are cut from aluminum, and the shape of even a single screw is selected according to the application.



Specifications

Type: Crossover network
Circuitry: DC unit amplifier configuration, Bessel filter (24dB/oct)
Cutoff end sub-numbers: unit-2: 500, 800, 1kHz; unit-3: 1.25k, 2k, 2.5kHz; unit-4: 5k, 8k, 10kHz
Slope characteristic: 24dB/oct (Bessel function curve)
Level control: 0 to -30dB (1dB step), -∞
Input sensitivity/impedance: 1.0V/50kΩ
Maximum input: 7.0V
Gain: 0dB
Harmonic Distortion: 0.003% (1V output), 0.005% (5V output)
Output impedance: 100Ω
SN ratio (IHF-A): 110dB (at 1V output)
Frequency Response: DC to 100kHz +0 -1dB(at flat position)
Semiconductors used: 100 transistors, 42 FETs, 6 diodes
AC outlets: 4 systems not interlocked with power switch, total 900W
Power supply: AC120V 60Hz
Power consumption: 20W
Dimensions: W 480 x H 80 x D 365 mm
Weight 7.4kg



Shipping

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Shipping is by  FedEx  or  EMS.

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Returns

Unconditional Return Policy

Customer service and satisfaction are very important to us.
I have an unconditional return policy if notified within 30 of the receipt of the item.

All returned items must be the original condition.
All return requests must be made within 30 days of the receipt of the item.

Please contact me first for return before you ship it back to me.
The postage of the returned goods is a buyer burden.


International Buyers

Please Note:
Import duties, taxes and charges are not included in the item price or shipping charges.
These charges are the buyer’s responsibility.
Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying.
These charges are normally collected by the delivering freight (shipping) company or when you pick the item up -do not confuse them for additional shipping charges.
We do not mark merchandise values below value or mark items as “gifts” -US and International government regulations prohibit such behavior.


I am sorry but we can not arrange that because it is illegal in Japan.
Thank you.