SSA2Bperspektiv
SSA2BfrontalSSA-2B-rear

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£3,329 inc. VAT

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newTube Tech Tube-Tech SSA 2B

The Tube-Tech SSA 2B Stereo Summing Amplifier provides a high end, yet cost effective solution for analog summing.
  • Description
  • Features

The Tube-Tech SSA 2B Stereo Summing Amplifier provides a high end, yet cost effective solution for analog summing. Featuring two very low noise/low distortion summing amplifiers with a very wide frequency response. The transformer balanced inputs are capable of handling extremely high input levels. The outputs are balanced and have fully floating transformers with a static screen. The power supply and the sidechain circuits are based on a solid-state circuit. The Tube-Tech SSA 2B offers amazing analog summing for a digital world!

Features and Technical Specifications

The SSA 2B consists of a summing amplifier at the input, a 23 stepped attenuator with a range of +/- 10 dB and an output stage. The summing amplifier is a symmetrical two-stage amplifier, designed around two dual, low impedance, and high transconductance triodes. The input transformer is part of the dual feedback configured as a so-called zero field transformer. The attenuator is a heavy gold plated 2×23 position sw…

The Tube-Tech SSA 2B Stereo Summing Amplifier provides a high end, yet cost effective solution for analog summing. Featuring two very low noise/low distortion summing amplifiers with a very wide frequency response. The transformer balanced inputs are capable of handling extremely high input levels. The outputs are balanced and have fully floating transformers with a static screen. The power supply and the sidechain circuits are based on a solid-state circuit. The Tube-Tech SSA 2B offers amazing analog summing for a digital world!

Features and Technical Specifications

The SSA 2B consists of a summing amplifier at the input, a 23 stepped attenuator with a range of +/- 10 dB and an output stage. The summing amplifier is a symmetrical two-stage amplifier, designed around two dual, low impedance, and high transconductance triodes. The input transformer is part of the dual feedback configured as a so-called zero field transformer. The attenuator is a heavy gold plated 2×23 position switch.

The output stage is designed around two dual triodes in push-pull and an output transformer (with a static screen). Both the summing amplifiers and the output amplifiers are symmetrical.

Two large VU-meters show the levels on the XLR output sockets. To avoid the distortion introduced by the VU-meters when connected directly to the output XLR sockets, symmetrical configured OP- amps buffer the VU-meters.

SSA2B Summing principle:

All inputs are balanced by two zero field transformers (one for each channel), but how does a zero field transformer work? In the zero field transformer configuration, the transformer is part of the feedback circuit.
There are several benefits for this:

1. The voltage across the transformer is reduced substantially whereby a much smaller transformer is needed for the same specification. The reduction is of the same magnitude as the feedback applied.

2. The distortion at low frequencies is reduced substantially.

3. Frequency response in both the low and high range is extended.

4. Phase response in both the low and high range, is also reduced

Specifications
– 8 stereo + 4 mono inputs and 1 stereo output
– 23-step gold-plated output gain control
– Master Output Gain: -10dB to +10dB
– Fully symmetrical circuitry from input to output
– No field transformer balanced inputs
– Maximum input > +30dBu
– Low noise: < -90dBu @ 8 inputs terminated
– 2 large VU meters showing output level
– Frequency response: 5Hz to 100kHz

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Gear Status

New Gear

Brand

Tube Tech

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£2,774 ex. VAT

£3,329 inc. VAT

Delivery Estimate is less than 7 days

Enquire about this product

Share this product