Epos M22 Speaker System and Butler Audio TDB 5150 Amplifier At A Glance & Ratings: Butler

At A Glance: Butler Audio TDB 5150 Amplifier


Inputs: RCA (5)
Five-way binding posts with custom machined hex-drive nuts (5)
Additional: None

Number of Channels: 5
Power Rating (watts per channel): 150 into 8 ohms; 225 into 4 ohms
Frequency Response: +/– 0.5 dB from 20 Hz to 20 kHz
Dimensions (H x W x D, inches): 8.5 x 17 x 16
Weight (pounds): 48
Price: $3,295

These listings are based on the manufacturer's stated specs; the HT Labs box below indicates the gear's performance on our test bench.

Ratings: Butler Audio TDB 5150 Amplifier

Build Quality: 96
• Solid, beautiful design
• Blue glow from LEDs beneath tubes adds visual appeal

Value: 95
• Does not seem to run out of steam under heavy loads
• Incredible speaker control
• Unique blend of the best of vacuum-tube and solid-state engineering

Features: 92
• One triode vacuum tube per channel
• Soft start for tube warm-up
• No output transformer; no problems
• Shockingly cool-running

Performance: 96
• Impressive grip on bass; detail galore without etching or compression under dynamic film requirements
• Exceptionally convincing and involving reproduction of soundtracks and music

Ergonomics: 93
• Setup is easy; amp requires extra space for ventilation
• Directions provide guide for ideal input-jack positions to minimize heat and maximize performance

Overall Rating: 95
The Butler Audio TDB 5150 is a breakthrough product that serves two masters (vacuum-tube and solid-state topologies) exceedingly well and also serves the two masters of demand (music and film reproduction) equally well. A true giant killer.

General Information
TDB 5150 Amplifier, $3,295
Butler Audio
(303) 766-4504
Dealer Locator Code BUT