Publishers of technology books, eBooks, and videos for creative people

Home > Articles > Gadgets and Digital Lifestyle

  • Print
  • + Share This

The Amplifier: B&K Reference 200.7

Now we turn to the audio portion of the system. I originally considered a high-end A/V receiver because it's the most popular amplification/control option today. On my short list were the Denon AVR-5805, the Sunfire Ultimate Receiver II, and the B&K AVR507. The Denon especially caught my eye, with its 10 channels of amplification and built-in HDMI and DVI switching. However, at a cool six grand, this receiver cost as much (if not more) than many high-quality separates. And when you want the best sound, you always go with separates—which is what I ultimately did.

The advantage of audio separates is simple. By separating the amplifier from the rest of the electronic circuitry, you reduce the amount of noise and interference between the circuits. Theoretically, the manufacturer can also use higher-quality components because the dual boxes provide more room to work with inside the cases. (This isn't always true, of course; one certainly can't claim that the three receivers I just mentioned use inferior-quality components!)

I evaluated separates from a number of different companies, and eventually narrowed my choice down to B&K and Sunfire. My final choice was based primarily on availability; I had a B&K dealer locally (Ovation Audio/Video in Indianapolis), whereas Sunfire dealers are few and far between. With both brands receiving equally glowing reviews and having similar features, I was comfortable with the choice.

When you purchase audio components, you take an audio/video receiver and cut it in half. One component is the amplifier, and the other is the preamplifier/processor (often called the "pre/pro"). The amplifier I chose was the B&K Reference 200.7 S2, which cost approximately $2,700. As the name implies, the 200.7 offers 200 watts/channel across seven channels. This is not only a lot of power (the typical A/V receiver only has around 100 watts/channel) but it's also very clean power. The signal-to-noise ratio is an impressive 95dB, and total harmonic distortion is a miniscule 0.09%; this puppy is capable of producing everything from the quietest whisper to the loudest, most driving bass with no overt coloration.

With seven channels of amplification, the 200.7 is obviously designed to drive a 7.1-channel system. My system is 6.1 (only one rear speaker), so I have one unused channel of amplification. Better too many channels than not enough.

Connection to the preamp can be via either line-level RCA connections or XLR balanced connectors. The latter are the types of connectors you find on professional microphones and are the preferred method. I went with the XLR balanced connectors, which cost me about $30 per cable—and that's for seven cables, mind you (one for each channel, plus the subwoofer). Remember to factor in the cost of cabling when you're planning your budget!

The amplifier itself is quite large, standing 7.5 inches high and 19.5 inches deep. It also generates quite a bit of heat, although that's to be expected, given its power output. You definitely want to place this type of component in a well-ventilated rack; put it in a sealed cabinet and you might build up enough heat to shut it down.

Fortunately, I don't have to leave the amplifier on all the time. The 200.7 has a control input that connects to the matching preamp, which turns on the amplifier only when the preamp is in use. The connection is a standard mono mini-jack.

While I'm talking about amplifiers, I'll mention a second amplifier I purchased for my new system. This is a simple AudioSource Amp 100 that I use to power the outdoor speakers on my rear deck. At just $135, the Amp 100 offers 50 watts x 2 channels, which is perfect for background music. The unit is only 3 inches high, so it can sit unobtrusively on top of another component in my rack.

  • + Share This
  • 🔖 Save To Your Account

Peachpit Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from Peachpit and its family of brands. I can unsubscribe at any time.


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about Peachpit products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information

To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.


Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites; develop new products and services; conduct educational research; and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.


If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information

Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.


This site is not directed to children under the age of 13.


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information

If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at and we will process the deletion of a user's account.


Users can always make an informed choice as to whether they should proceed with certain services offered by Adobe Press. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive:

Sale of Personal Information

Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to

Supplemental Privacy Statement for California Residents

California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure

Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact

Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice

We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020