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TDS
Speakers - High Bass

QSI Speakers & Enclosures are now TDS Speakers & Enclosures

Why the name change?

The speakers and enclosures formely branded as QSI Solutions have been re-branded to TDS. The actual products are the exact same speakers and enclosures. So many of you may be asking why the name was changed.

It's simple really.

  1. These have always been distributed by American Hobby Distributors (AHD) and were originally given the brand name "TDS".
  2. When AHD purchased QSI Solutions, which makes sound decoders, it was natural for AHD to change their branding to "QSI".
  3. AHD later sold QSI Solutions, so the speakers were re-branded back to the original "TDS".

Until all previous inventory is depleted, some speakers and some enclosures may still be in the previous QSI Solutions packaging.

Model Description Discount Add Cart
0.78-inch (20mm)
HB78S 4 in stock

HB78S Speaker

Size (Imperial): 0.78 inches (depth 0.39)
Size (Metric): 20 mm (depth 10.0)
Impedence: 8 Ohm
Resonant Freq: not available
Frequency Range: not available
Input Nominal: 1 Watts
Input Maximum: 2 Watts
   
List: 9.95
Discount: 70%

Steve's: 2.98
EHB78S 3 in stock

EHB78S Speaker Enclosure

List: 11.95
Discount: 70%

Steve's: 3.58
1.22-inch (31mm)
EHB122R 2 in stock

EHB122R Speaker Enclosure

List: 11.95
Discount: 70%

Steve's: 3.58
1.57-inch (40mm)
HB157S 2 in stock

HB157S Speaker

Size (Imperial): 1.57 inches (depth 0.57)
Size (Metric): 40 mm (depth 14.5)
Impedence: 8 Ohm
Resonant Freq: 240 Hz
Frequency Range: 20 kHz
Input Nominal: 2 Watts
Input Maximum: 4 Watts
   
List: 14.95
Discount: 70%

Steve's: 4.48
2.07-inch (52mm)
HB207S 2 in stock

HB207S Speaker

Size (Imperial): 2.07 inches (depth 0.95)
Size (Metric): 52 mm (depth 24.0)
Impedence: 8 Ohm
Resonant Freq: 150 Hz
Frequency Range: 20 kHz
Input Nominal: 2 Watts
Input Maximum: 5 Watts
   
List: 12.95
Discount: 70%

Steve's: 3.88