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Russound TBL-75 Tabletop volume control for multi-room audio systems

Item # 543TBL75

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5 questions - 5 answers

Item # 543TBL75

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About the Russound TBL-75

Tara W.

Use the tabletop TBL-75 in a stereo or multi-room audio setup to keep volume adjustments at your fingertips. You can simply connect it between your amplifier and a single pair of speakers, or run up to sixteen pairs thanks to built-in impedance-matching technology. Connect your favorite pair of headphones to the front-panel jack for private listening.

Product highlights:

  • impedance-matching switch for connecting multiple pairs of speakers
  • 1 set of spring-clip speaker inputs and outputs
  • terminals accept bare wire up to 14-gauge
  • 1/4" headphone output
  • 6-1/16"W x 1-15/16"H x 6-3/8"D
  • warranty: limited lifetime
  • MFR # 6400-113161

What's in the box:

  • Tabletop volume control
  • Instruction Manual

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More details on the Russound TBL-75

Research Team

Product Research

Features

Overview: The Russound TBL-75 is a free-standing, 126-watt tabletop volume control with a headphone jack and built-in impedance-matching options. It connects between the speaker outputs of an amplifier or receiver and a pair of speakers and can just provide volume control for a pair of headphones. The TBL-75 adjusts the volume of the speakers connected to it by adjusting the signal from the amplifier to the speakers. Connecting headphones disconnects the speakers in the room for private listening.

Precision Autoformers: The Russound tabletop volume controls is made with precision autoformers for high-fidelity sound, excellent frequency response, no heat buildup, and maximum power transfer from the amplifier to the speakers.

UltraMatch Impedance Switching: An impedance switch on the TBL-75 allows installers to easily match the load of multiple speaker pairs to the amplifier impedance without the need for a speaker selector or other impedance-matching equipment. When  using the TBL-75 in installations with more than one pair of speakers or additional volume controls, the TBL-75 has a rear panel impedance selector switch to be set at 1x, 2x, 4x, or 8x. The 1x setting allows the TBL-75 to be used as a standard volume control. The 2x, 4x and 8x settings allows it to used a an UltrMatch impedance matching volume control. The UltraMatch volume control matches the minimum output impedance of the amplifier or receiver, in addition to adjusting the volume. It eliminates the need for a speaker selector or additional impedance matching equipment. The TBL-75 can be used with 4 to 8-ohm speakers. It will allow impedance matching for up to 16 speaker pairs per system.

Connections: The Russound TBL-75 features connections for a pair of speakers and set of headphones.

  • Speaker Connections: The Russound TBL-75 utilize spring post terminals for the unit's pair of speaker output and input connections. Your amplifier's speaker output connect to the volume control's speaker input, while the volume control's speaker outputs connect to your speakers. The tabletop volume control's spring post terminals will accommodate 18, 16 or 14 gauge stranded copper speaker wire.
    • Note: You should not use solid-core, aluminum or Romex type wire with this volume control.
  • Headphone Output: The TBL-75 is equipped with a front-panel 1/4" headphone output designed to connect an optional set of headphones. Connecting your headphones disconnects the speakers connected to this unit for private listening and the unit's volume knob controls the headphone audio levels.

Mounting: The TBL-75 offers a freestanding design so it can be located on a desk, counter, or tabletop.

Specifications

  • Volume Adjustment: 12 steps including Off; total attenuation of 43dB
  • Power Handling: 126 watts peak; 42 watts RMS continuous per channel
  • Frequency Response: 20 to 20,000 Hz, +1.0/-0.5 dB at rated power
  • Minimum Speaker Impedance: 4-ohms
  • Impedance Multipliers: 1x, 2x, 4x, and 8x
  • Impedance Matching Type: Autoformer
  • Headphone Output: 1/4" (6.35mm) TRS jack
  • Amplifier And Speaker Connectors: Spring terminals
  • Maximum Wire Size: 14 AWG (1.9mm)
  • Dimensions: Width = 6.025", Height = 1.9375", Depth = 6.375"
  • Weight: 2.5 lbs (1.3 kg)

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Customer Q&A

5 questions already asked

Q
I have an old pair of Fisher Speakers 8ohm from the early 80s that I have had re-coned and I now have a pair of Magneplanar MMGs speakers 4ohm. How do I wire both sets of speakers to the Russound TBL-75?
daniel  Nov 21, 2023
1 answer
A
I would be happy to help, Daniel. An impedance switch on the TBL-75 allows you to easily match the load of multiple speaker pairs to the amplifier impedance without the need for a speaker selector or other impedance-matching equipment. When using the TBL-75 in installations with more than one pair of speakers, the TBL-75 has a rear panel impedance selector switch to be set at 1x, 2x, 4x, or 8x. You must calculate the impedance generated by your speaker combo and choose the correct setting. The 1x setting allows the TBL-75 to be used as a standard volume control. The 2x, 4x and 8x settings allow the impedance matching volume control feature. The TBL-75 volume control matches the minimum output impedance of the amplifier or receiver, in addition to adjusting the volume. The TBL-75 can be used with 4 to 8-ohm speakers. Keep in mind the TBL-75 can only handle a maximum wattage of 42-watts RMS per channel.
bo  Nov 21, 2023 (Staff)
Q
How many watts can I run through this?
aaron  Mar 08, 2023
1 answer
A
It can handle up to 126 watts.
zachary  Mar 08, 2023 (Staff)
Q
Could I connect two sets of speakers to this unit connected in parallel?All speakers are 8O's
mark  May 28, 2022
1 answer
A
Hey Mark, thank you for reaching out to us and that is a great question. That Russound controller is 4 ohm stable so you can run 2 sets of 8 ohm speakers in parallel safely.
arielle  Jun 02, 2022 (Staff)
Q
I have a Technics 1500 and Beolab 8000, can i use this as my volume control in between the two?
noel  Aug 07, 2021
1 answer
A
This controller works with passive speakers that are connected to a receiver/amp and will not work with your gear. We may have something that can and I recommend contacting an advisor by calling 1-800-324-9695 to check
jason  Aug 09, 2021 (Staff)
Q
In my apartment, I want to have 3 different zones that can play separate 1, 2 or 3 sets of speakers. Is this a good product for this application? Is it better to have a receiver/amplifier with multiple zones?
claudia  Sep 21, 2017
1 answer
A
This is a basic stereo volume control; it does not provide multi-zone capability. If you want the ability to play different sources in different locations at the same time, you'll need separate channels of amplification for each zone. For additional assistance and personalized recommendations, feel free to contact the Crutchfield A/V Design Group: https://www.crutchfield.com/Institutional/diy.aspx
ryan  Sep 25, 2017 (Staff)
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