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THEATER 7 XD
7 CHANNEL POWER AMPLIFIER
100 WATT AMPLIFIER FEATURING KRELL iBIAS TECHNOLOGY
100 Watt Seven Channel Power Amplifier with
Krell iBias Class A Technology
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Circuitry Highlights
Power Supply
Highlights
The power supply consists of two 787VA toroidal
transformers and 160,000uF of capacitance. This is shared
among all the channels so all of that power is available to the channels with the most demand.
In real world conditions the left, right, and center channels require the lion’s share of the power so this gives the
Theater 7 a more effective power supply than other amplifiers that have smaller dedicated power supplies for
each channel.
Feature Highlights
Network connectivity brings convenience, monitoring, and reporting to end users from any smartphone, tablet, or
laptop.
Output current, fan status, and operating temperature are monitored in real time for conformance with preset
limits. Any faults are reported on the front panel and also on the web server interface. Additionally, the amplifier
will send notification of any operational anomalies to the e-mail addresses entered on the web server interface.
DESIGN
Krell® is a registered trademark of Krell Industries, LLC., and is restricted for use by Krell Industries LLC., its subsidiaries, and authorized agents. All other trademarks and trade names
are registered to their respective companies. © 2018 by Krell Industries, LLC. All rights reserved.
Krell Industries, LLC. • 45 Connair Road • Orange, CT 06477-3697 USA
Tel: 203-298-4000 • Fax: 203-799-9796 • Sales Dept: 203-298-4010 • contact@krellonline.com • www.krellonline.com
All operational features, functions, specifications, and policies are subject to change without notice.
Krell iBias Class A amplifiers are the first to deliver the rich musicality of Class A amplifiers and the
uncompromised dynamics of classic Krell amplifiers with greater efficiency and lower power consumption than
conventional Class A amplifiers.
THEATER 7 XD
100 WATT 7 CHANNEL POWER AMPLIFIER
The amplifier design uses Krell Current Mode technology that is fully differential and discrete in the critical gain
stages. This results in a highly linear and extended frequency response, well beyond the range of hearing, for
smooth effortless highs and tight high impact bass.
Amplifier configuration options include display brightness timeout and inactivity timeout. The inactivity timeout
conserves energy by placing the amplifier in stand-by when there is no signal for longer than the selected time
period. Firmware updates can also be initiated directly from the web server.
XD Explained
Krell’s “XD” (Xtended Dynamics, Xtended Dimensionality, Xtended Detail) upgrade for the iBias amplifiers takes
an already great sounding amplifier and raises its performance to the next level. “XD” is a classic example of Krell’s
continuous R&D efforts reaping benefits across multiple product lines. During the development of the K-300i
Integrated Amplifier we discovered substantial sonic improvements by lowering the output impedance below
traditional norms. So we applied this technique to our existing line of amplifiers and the improvement was so
substantial that it required a unique designation, hence, “XD.”
It was no simple matter to just lower the output impedance. This affects the amplifier’s stability and transient
response so each stage prior to the output stage had to be re-tuned to work optimally with the lower output
impedance. This lower output impedance exerts more control over the speaker drivers and damps out unwanted
vibrational modes, allowing a more accurate reproduction of the original signal.
SPECIFICATIONS
• 100 Watts into 8 Ohms
•
7 ea - Single-ended RCA and Balanced XLR Inputs
• 1 RJ45 Ethernet Port
• 1 12V Trigger Input
• 7 pr 5-way Speaker Binding Posts
• Optional Rack Mount Kit
• 17.1" (43.4cm) W x 7.65" (19.4cm) H x 21.1" (53.6cm) D
Weight: 70lb (31.8kg)
•
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