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TDS
Speakers - High Performance

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
HP300S 2 in stock

HP300S

Size (Imperial): 3.00 inches (depth 1.73)
Size (Metric): 78 mm (depth 44.0)
Impedence: 8 Ohm
Resonant Freq: 120 Hz
Frequency Range: 0-20 kHz
Input Nominal: 5 Watts
Input Maximum: 8 Watts
   
List: 14.95
Discount: 70%

Steve's: 4.48
HP300SLP 2 in stock

HP300SLP (low profile)

Size (Imperial): 3.00 inches (depth 1.24)
Size (Metric): 78 mm (depth 31.5)
Impedence: 8 Ohm
Resonant Freq: 250 Hz
Frequency Range: 0-23 kHz
Input Nominal: 3 Watts
Input Maximum: 5 Watts
   
List: 14.95
Discount: 70%

Steve's: 4.48
HP350S 2 in stock

HP350S

Size (Imperial): 3.50 inches (depth 1.65)
Size (Metric): 92 mm (depth 42.0)
Impedence: 8 Ohm
Resonant Freq: 160 Hz
Frequency Range: 0-13 kHz
Input Nominal: 6 Watts
Input Maximum: 10 Watts
   
List: 14.95
Discount: 70%

Steve's: 4.48
HP400S 2 in stock

HP400S

Size (Imperial): 4.00 inches (depth 1.89)
Size (Metric): 100 mm (depth 48.0)
Impedence: 8 Ohm
Resonant Freq: 140 Hz
Frequency Range: 0-16 kHz
Input Nominal: 15 Watts
Input Maximum: 25 Watts
   
List: 14.95
Discount: 70%

Steve's: 4.48