Inputs, Speaker Output Binding Posts

Inputs:

The high-quality gold plated RCA-type input jacks will easily accept the line-level signal supplied from most pre-amplifiers. The input gain has been internally preset to equal full (150 Watts) output at 8 ohms for an input sensitivity of 1.5Volts. The input impedance is a very compliant 47K Ohms which accepts a wide range of signals without undue loading.

Since these inputs are unbalanced, it's good practice to keep the shielded connecting audio cables as SHORT as possible. Cable lengths longer than 10 feet are not recommended and excessive length cables should never be coiled. Use the proper cable lengths; the performance and sound quality of this amplifier is worth it!

Speaker Output Binding Posts:

Gold plated heavy duty 5-way binding posts with large custom- machined gold plated hex drive nuts have been supplied to accommodate virtually any type of speaker connection. Speaker wire should be kept as short as possible and away from input cables. Shielded cables must NEVER be used, as this may cause high frequency loss and introduces a needless capacitive load to the amplifier. DO NOT SHORT ANY POST TO ANY OTHER POST!

Speaker Phasing:

Upper post, RED ring, is POSITIVE. Lower post, BLACK ring, is NEGATIVE.

Correct speaker phasing is essential for optimum operation.

Note: Never short ANY speaker post to ANY other speaker post! Connect 1 separate speaker load to each channel. DO NOT attempt to Bridge between channels in any way!

Recommended Channel Assignment:

While all channels are identical, for minimum heat generation, please use the following guide for preferred channel assignment for the model 5150:

Ch 1: Right Main

Ch 2: Right Surround

Ch 3: Center Front

Ch 4: Left Surround

Ch 5: Left Main

The recommended model 3150 Channel assignment: Ch 1: Right Main or Right Surround

Ch 3: Center Main or Center Surround

Ch 5: Left Main or Left Surround

Remote Operation:

If remote operation is desired, the 3.5mm mini phone jack is provided on the rear panel. Connecting cable may be either shielded or unshielded. Supply voltage should be between 8 and 13 V DC, either polarity, from the preamp or other remote source.

Note: Remember to leave the front panel power switch "OFF" (down) for remote operation

TDB 3150 specifications

The Butler Audio TDB 3150 is a groundbreaking power amplifier that redefines the standards of audio performance in home and professional setups. Crafted with precision, this amplifier is celebrated for its unique combination of high output power, innovative technology, and exceptional sound quality.

At its core, the TDB 3150 is a three-channel amplifier that utilizes Butler Audio's proprietary hybrid technology. This technology integrates both solid-state and vacuum tube components, allowing the amplifier to produce a rich, warm sound typically associated with tube amplification while maintaining the clarity and oomph of solid-state designs. This blend results in a sonic experience that is both immersive and dynamic.

One of the most notable features of the TDB 3150 is its considerable power output, rated at 150 watts per channel into 8 ohms. This robust power enables the amplifier to drive a wide range of speakers effectively, delivering effortless sound reproduction even at high volumes. Additionally, the TDB 3150 offers exceptional headroom, allowing for a clean transition during dynamic passages of music or film soundtracks without distortion.

The amplifier also comes equipped with advanced thermal management systems, ensuring that it remains cool and performs optimally even under strenuous conditions. This is particularly important for users who demand reliability during extended listening sessions or in high-demand environments like studios or live sound situations.

Another key characteristic of the TDB 3150 is its sleek design and user-friendly interface. Featuring a minimalist aesthetic, it fits seamlessly into any audio setup without being an eyesore. Furthermore, the amplifier includes a comprehensive range of input options, including balanced XLR and unbalanced RCA connections, making it compatible with various audio sources.

Additionally, the TDB 3150 is built with high-quality components and meticulous attention to detail, ensuring durability and longevity. Its construction reflects Butler Audio's commitment to engineering excellence, promising years of reliable performance.

For audiophiles and sound professionals seeking an amplifier that merges the best of both worlds—tube warmth and solid-state power—the Butler Audio TDB 3150 is a standout choice. Its impressive specifications, advanced technology, and aesthetic appeal make it a worthy addition to any audio system, delivering an unparalleled listening experience that captivates the senses.