Sherbourn 7/2100 Power Amp

Sherbourn 7/2100 Amplifier - This is in like new condition. This is one great amp.  I used it as a back-up HT amp, but the wife says all unused stereo equipment must go.

 

From Hometheaterhifi:

The Sherbourn 7/2100 amplifier is a heavyweight monster (100 pounds). It packs seven monoblock amplifiers capable of delivering 200 W each into an 8 ohm load (300 W into 4 ohm) in a single chassis. Some people use the raw measure that the heavier the amplifier, the better. If you are from that school of thought, then you will be very happy with this amplifier.The 7/2100 amplifier uses two power chords, which should be connected to two different electrical outlets. This is because the 7/2100 may draw more current than a single outlet could provide (a typical outlet could handle up to 15 A of electric current), especially when it is used to drive low impedance speakers. In my opinion, this is a more elegant solution than requiring one to install a dedicated 20 A outlet, as some high-current amplifiers from some other manufacturers require.The 7/2100 amplifier can accept balanced or unbalanced inputs. High quality five-way binding posts are used for the output terminals. All the input and output connectors are gold plated and seem to be very robust, so I have nothing but praise for the build quality of this amplifier. . .

 

One of the nice features of the 7/2100 amplifier is that it is bridgeable. Three pairs of the input channels on the back are separately grouped, and a bridging switch is provided for each group. Each bridged pair can produce up to 400 W into 8 ohms. With the bridge capability, you can configure this seven-channel amplifier into a six-, five-, or four-channel one depending on your need.Another nice feature of the 7/2100 amplifier is the inclusion of the Load Detection System (LDS) switch for checking the correctness of the speaker connections. This switch can show the status of the speaker connection for each channel through a colored LED without needing an ohmmeter or a walk through. Green LED indicates a good speaker connection and correct speaker impedance, orange indicates an open circuit or high speaker impedance, and red indicates either a short circuit or a too-low speaker impedance. When the indicator shows orange or red for a channel, it is suggested that you check the speaker connection for that particular channel.Except for the power on/off button, a small blue LED indicator, and the Sherbourn logo, nothing else clutters the faceplate of the amplifier. This amplifier can be put in always-ON mode or remotely triggered in two ways: using automatic signal sensing or 12 V DC voltage. . . .

The 7/2100 is a great amplifier that I'm sure will complement many home theater systems nicely. This superb sounding amplifier has ample power to satisfy even the most power hungry system.

 

Specifications:

THE 7/2100 HAS DISCRETE BI-POLAR OUTPUT DEVICES AND OUTPUTS

7 * 200 WATTS INTO 8 OHMS AND 7 * 300 WATTS INTO 4 OHMS WITH

ALL CHANNELS DRIVEN

 

SEVEN TOROIDAL TRANSFORMERS GIVE PRODIGIOUS AND EQUAL POWER TO ALL

SEVEN CHANNELS WITH MINIMAL CROSS TALK INTERFERENCE

LARGE HEATSINKS ALLOW FOR A FAN FREE COOL RUNNING TEMPERATURE

 

SIX OF THE SEVEN CHANNELS CAN BE BRIDGED TO GIVE A FRONT STAGE OUTPUT

OF 3 * 400 WATTS AT 8 OHMS AND 3 * 600 WATTS AT 4 OHMS

 

THE REAR PANEL INCLUDES 7 SETS OF XLR BALANCED INPUTS, 7 SETS OF RCA

UNBALANCED INPUTS, 7 SETS OF GOLD PLATED SPEAKER TERMINALS AND A

LOW VOLT TRIGGER FOR REMOTE INTEGRATION

 

THE 7/2100 WILL DRAW ALMOST 20 AMPS ON A 4 OHM LOAD AND TWO POWER

CORDS ARE THEREFORE INCLUDED. EVEN ON AN 8 OHM LOAD SIGNIFICANT

BENEFITS ACCRUE FROM THE USE OF TWO POWER CORDS

POWER OUTPUT

200 watts into 8 ohms.

300 watts into 4 ohms minimum sine wave continuous

output. 

TOTAL HARMONIC DISTORTION

Less than 0.05% at 8 ohms and 0.075% at 4 ohms.

OUTPUT LOAD IMPEDANCE

8 or 4 ohms in Normal mode

8 ohms minimum in Bridged mode

INPUT LOAD IMPEDANCE

Balanced input 20K ohms

Unbalanced input 20K ohms.

 

INPUT SENSITIVITY (Balanced or Unbalanced)

1.1 volts.

UNBALANCED INPUT SENSITIVITY

1.10 volts.

 

POWER BANDWIDTH

5Hz to 75kHz.

 

SIGNAL TO NOISE RATIO

100dB wideband

110dB A-weighted. 

WEIGHT (in carton)

Model 7/2100A 115 pounds (52.2Kg)

Model 5/5210A 85 pounds (38.6Kg)

DIMENSIONS

Width 19 inches (483mm)

Depth 17.7 inches (450mm)

Height 7 inches (177mm).

Reviews:

Reviews below...copy and paiste in your browser

http://www.audioholics.com/reviews/processors/sherbourn-pt-7000-processor-and-7-2100-amplifier-review

http://www.audioholics.com/reviews/processors/sherbourn-pt-7000-processor-and-7-2100-amplifier-review/7-2100-7-channel-amplifier-overview-and-setup

http://www.ecoustics.com/electronics/forum/home-audio/12634.html

http://www.audioreview.com/cat/amplification/amplifiers/sherbourn/7-2100/prd_302718_1583crx.aspx

http://www.hometheaterhifi.com/volume_11_1/sherbourn-pt-7000-ssp-7-2100-amp-1-2004.htm