Cambridge Audio Topaz SR20
Our take on the Cambridge Audio Topaz SR20 by Crutchfield's Deia Z.
Amazing sound, pure and simple
Stereo music lovers, meet the Cambridge Audio Topaz SR20. An outstanding value considering its audiophile-grade parts and construction, this receiver has connections for eight different audio sources, including three digital inputs. The inclusion of a Wolfson digital-to-analog converter means clear sound with depth and detail from streaming media players, Blu-ray players, and more. A direct connection for a turntable lets you enjoy your music on vinyl without the addition of a phono preamp, and the versatile front-panel minijack connector gives you an easy connection for most any kind of MP3 player or portable device. Two pairs of speaker outputs let you drive a second pair of speakers or bi-wire compatible speakers for optimal performance. And a connection for an optional powered subwoofer lets you enjoy the full sound of a 2.1 stereo system.
At the heart of the SR20's powerful sound is a Class AB amplifier fed by a toroidal transformer that makes its 100 watts per channel sound like significantly more. Every time Cambridge reps come here to share demos with us, I'm blown away by the room-filling sound coming from what seems a modestly-powered amp, spec-wise. Whether you pair the SR20 with floor-standing speakers or compact satellites, your listening room will be filled with incredibly pure, detailed sound. And to top it all off, the receiver's stylish and functional metal casing provides acoustic damping to reduce distortion caused by vibration for the cleanest possible performance.
- 100 watts x 2 into 8 ohms (20-20,000 Hz) at 0.15% THD
- toroidal transformer ensures clean, dynamic sound
- onboard Wolfson digital-to-analog converter allows digital sources to be played with detail and depth
- 8 audio inputs (including MM/MC phono input for a turntable, 3 digital inputs, and a front mini jack)
- 30 AM/FM station presets
- Radio Data System (RDS) displays broadcast text from stations (where available)
- brushed aluminum front panel with wrap-over lid assembly controls resonance
- quiet speed controlled cooling fan for higher efficiency and cleaner sound
- remote control
- two sets of binding post speaker connectors (allows for A/B switching or bi-wiring with compatible speakers)
- 1 mono RCA output for powered subwoofer
- full-size front headphone jack
- detachable power cord
- 16-15/16"W x 4-1/4"H x 14-9/16"D
- weight: 17.8 lbs.
- warranty: 3 years
- Our 60-day money-back guarantee
What's in the Box:
- Stereo receiver
- 5' AC power cord
- Remote control (RC-SR20)
- 2 "AA" batteries
- AM antenna loop
- FM-wire antenna with connector
- Quick Start booklet
- Important Safety Instructions
Perfect receiver for a HiFi system - love it!!!
Jon, Iowa City, IA
Cambridge Audio Topaz SR20 Reviews
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Features and Specs
|Stereo RMS Power (watts)||100|
|THD in Stereo||0.15 %|
|Frequency Bandwidth (stereo)||20-20k Hz|
|FM Sensitivity||Not Given|
|Signal To Noise Ratio||82dB|
|Phono Signal to Noise Ratio||---|
|Wired or Wireless Network||No|
|HD Radio Tuner||No|
|Satellite Radio Ready||No|
|Total Number of Zones||1|
|Multibrand Remote Control||---|
|Parts Warranty||3 Years|
|Labor Warranty||3 Years|
|Inputs & Outputs|
|Total Audio Inputs||8|
|Digital Audio Inputs||2 Opt/1 Coax|
|Speaker Output Pairs||2|
Stereo Amplifier: The Cambridge Audio SR20 stereo receiver employs a fully-discrete, high-power, class A/B amplifier rated at 100 watts RMS x 2-channels. The amplifier can handle impedances between 4 and 8 ohms.
Toroidal Transformer: The Cambridge Audio SR20 stereo receiver employs a powerful toroidal transformer. Benefits of a toroidal transformer include:
- High quality power output to the amplification circuits, with no clipping, transformer noise, buzz or hum, to provide a consistent signal.
- High power output, to allow large and demanding speakers to be driven at high volumes with sensational bass performance.
- Large power reserves, to allow the transformer to deliver high peaks of volume when required.
- Fully shielded against internal and external electrical interference, to maintain quality of power and signal.
Acoustically Damped Metal Chassis: Electronics (and therefore sound quality) are particularly susceptible to vibration; that's why Cambridge Audio used a low resonance, acoustically-dampened metal chassis to eliminate as much vibration as possible, ensuring that the most sound quality is extracted from every source.
Wolfson DAC: The Cambridge Audio SR20 stereo receiver utilizes a 24-bit/192kHz Wolfson DAC (digital-to-analog converter) for exceptional sound quality.
Inputs: The Cambridge Audio SR20 stereo receiver features a variety of connectivity options with analog, digital, and phono inputs.
- Digital Inputs: The SR20 offers digital connectivity with two optical (toslink) digital inputs and one coaxial (RCA) input. The digital inputs will accept 2ch PCM audio. The optical input supports up to 96kHz, while the coaxial input supports up to 192kHz.
- Analog Inputs: The stereo receiver includes a total of five analog audio inputs; 3 stereo RCA inputs, Phono input, and a front-panel 3.5mm input.
- Phono Input: The SR20 features a Phono input for connection of your turntable. Turntables fitted with phono cartridges of either the Moving Magnet (MM) or high output Moving Coil (MC) type (between 2-6mV output and 30-50k load impedance) can be used.
- Front-Panel Aux Input: The Cambridge Audio SR20 stereo receiver features a front-panel 3.5mm auxiliary input for temporary connection of a portable digital audio player. Connecting an audio device to the front-panel 3.5mm auxiliary input will override the unit's rear-panel RCA auxiliary input.
AM/FM Tuner (w/ RDS): The Cambridge Audio SR20 stereo receiver features a built-in AM/FM with manual, seek, and preset tuning. You can store up to 30 AM/FM station presets (15 each). The built-in AM/FM tuner features RDS for station name display on FM stations that support this function. For low quality stereo FM signals, selecting the Mono mode can reduce the noise and improve reception. You can also select between US or European tuning.
Outputs: The Cambridge Audio SR20 stereo receiver offers A-B speaker outputs, a mono-RCA subwoofer output, and front-panel headphone jack.
- A-B Speaker Outputs: The Cambridge Audio SR20 is equipped with A & B speaker terminals to connect two pair of loudspeakers or bi-wire a single pair of loudspeakers. You can select which speaker outputs are heard - A speaker only, B speaker only, A+B speaker, or Off. The amplifier can support a 4-ohm load when driving only one pair of speakers. The amplifier can support an 8-ohm load when driving two pair of speakers.
- Subwoofer Output: A single rear-panel mono-RCA subwoofer output is used to connect a powered subwoofer for a 2.1ch speaker system. The sub out has a fixed 200Hz low pass filter.
- Record Output: There is a stereo Record Output for connecting a CD recorder.
- Headphone Jack: The Cambridge Audio SR20 stereo receiver is equipped with a front-panel 1/4" headphone socket for connection of a set of headphones. The amplifier's speaker outputs are muted when headphones are connected. Headphones with an impedance of between 32 and 600 ohms are recommended.
Controls: The Cambridge Audio SR20 features front-panel controls and comes supplied with an IR remote control for wireless operation of the stereo receiver. The included remote control will also operate playback function of the Cambridge Audio CD10 CD player (779CD10, sold separately).
- Volume: The Cambridge Audio SR20 features a front-panel rotary dial to increase or decrease the level (-80 to 0) of the sound from the speakers outputs and headphone output of the unit. You can also use the included remote control to adjust the volume level.
- Bass & Treble: The Cambridge Audio SR20 offers Bass (100Hz) and Treble (20kHz) controls which are adjustable from -10 to +10dB.
- Balance: The unit also allows you to balance the unit's speaker outputs left-to-right (+/-10).
Front-Panel LCD: The Cambridge Audio SR20 stereo receiver features a front-panel LCD for the display of information, such as the selected input source, station identification, volume, and tone/balance level.
Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.
Why did you buy this?
No frills high end audio at a great price!!!! [ Justin Oct 19, 2018 ]
I chose this Cambridge SR20 receiver because it has the build quality and specs to adequately replace my broken classic Marantz 4300 receiver and because I have had good experiences with Crutchfield in the past. [ Frank May 30, 2018 ]
I need a phono input, and the space allows only 4.25 inches height. [ Jerel May 06, 2018 ]
Reviews [ juan Mar 22, 2018 ]
Was looking to replace an existing audio only system. The choices are not great anymore as most manufacturers are building AV only receivers. After researching both the product and Crutchfield it was a no brainer. [ John W. Feb 26, 2018 ]
There ability to drive my 4 ohm speakers. [ Kevin Feb 24, 2018 ]
Recommended by Crutchfield expert following email exchanges. [ Leslie Jan 19, 2018 ]
I want a basic amplifier to connect to my PC to play .flac files. The Cambridge SR20 has a very nice build quality and basic design that I find attractive. Everything I need and more importantly not a lot of extra stuff I don't. [ Benjamin Dec 20, 2017 ]
recommendation from your tech Mr. Colt. He was very helpful in assisting me in choosing a home audio system that can rock the house for my son for Christmas. Thanks Colt! [ Ramon Dec 03, 2017 ]
Looking for a classic am/fm amplifier for NPR and other radio station listening purposes that would also handle my CD collection (sold/gave away the vinyl before the last move). Levi provided several suggestions; I upped the anti on the receiver which stood out in third party reviews and customer comments. Very interested to find out how everything will work together. [ lynette Dec 02, 2017 ]
A straightforward 2-channel receiver with a slim profile -- at 4.5" tall it will fit in my new cabinet! [ Richard Oct 25, 2017 ]
I got your help in picking this product. Bought one for a friend and liked it so much i bought me one. [ Joel Sep 26, 2017 ]
Reputation of company and connectibility of unit [ clifford Apr 20, 2017 ]
Quality and simplicity over features. [ Jack Apr 10, 2017 ]
Great looking unit, plenty of what I want and turntable and cd transport, very nice! [ John Apr 02, 2017 ]
features and power [ Gregory Feb 04, 2017 ]
Excellent build quality. Not packed with networking tech and standards that are likely to be outdated in two years. [ Annemarie Oct 15, 2016 ]
Upgrade of my current receiver, better amp and needed digital inputs [ K Aug 29, 2016 ]
Sound & build quality [ Tom May 31, 2016 ]
Recommended by Crutchfield, opted for simplicity instead of gadgets and wireless. [ Omar Mar 15, 2016 ]
BECAUSE OF THE BANG FOR THE BUCK !!!!!! CAMBRIDGE HIT THE MOVING TARGET. [ STEPHEN Jan 05, 2016 ]
Because what I really wanted was not available and I needed something. [ ERIC Dec 05, 2015 ]
8 questions already asked
It has audio inputs which allow for any line equipment like CD/BD/DVD with inputs. Can't specifically say whether or not an equalizer would work. What I can say is this is the best, most powerful and cleanest amplifier I have ever owned. Awesome power and sound! Would buy again in a second. [ BILL Aug 22, 2018 ]
There are no inputs specifically for an equalizer. It has a 3-band built in. [ CHRISTOPHER T Aug 22, 2018 ]
Yes you can with digital audio audio inputs or cra cables [ carl Jan 17, 2018 ]
Sure, assuming you use good rated cables and connections like banana plugs etc.,,, [ Stephen Jan 16, 2018 ]
Yes, I have my DVD hooked up so we can what movies and/ or listen to music. It's pretty basic. Hook up the DVD video to the TV and the audio to the receiver. When you want to what a movie, turn every thing on and choose video 1 on the TV input. Hope this helps. This is a great unit! [ THEODORE Jan 16, 2018 ]
Absolutely. I currently run my Panasonic and Blu-ray player through this recievers. I much prefer using to large crate speakers. Also the recievers with all the fancy Sound stuff. Has a delay from the pic to Sound. This Cambridge is perfect [ JAMES Jan 16, 2018 ]
Well - the answer is that depends - if your TV or DVD have RCA (red and white jacks) outs, then you could hook them up to one of the line inputs on this receiver. If they have an optical out it might be possible to use the optical in on this receiver (I say possible depending on the format used by the optical out on the TV). But if all you have is HDMI on your TV or DVD, this receiver has no input for that. I've asked questions at the Cambridge Audio website on this very piece of equipment and they were quick to answer and very informative. [ Ed Jan 15, 2018 ]
Thats what I do. It isn't a surround sound system though. It's just a simple excellent sounding stereo amp. [ STEVEN B Jan 15, 2018 ]
Yes, but if you have an older TV you made need an adaptor depending on the types of audio out options you have. I run my TV, DVD, phono & Echo with no problems. Still has a few more input option available. [ James Jan 15, 2018 ]
Yes, provided all speakers are 8 ohms or greater. [ Jon Oct 28, 2017 ]
I have not tried it yet, but according to the manual, the answer is yes. "The use of A and B speakers affords you an easy and inexpensive way to create a simple multi-room system. NOTE:When using two pairs of speakers, use speakers with a nominal impedance of 8 ohms." On the next page it says "The Speaker A/B button toggles between two sets of loudspeaker terminals. The options are speaker A only, speaker B only, speaker A and B together, and both sets of speakers off." [ Richard Oct 27, 2017 ]
Yes. The speaker select button allows "A", "B", "A+B" or "off" [ Charley Oct 27, 2017 ]
Yes. From the manual (support section of the Cambridge Audio website, search on 'SR20') "Either A or B, or both A and B may be selected for use. Note: When using two pairs of speakers, use speakers with a nominal impedance of 8 ohms each." [ Ed Oct 27, 2017 ]
According to there manual, the answer is yes [ DAVID Oct 27, 2017 ]
According to the manual the cut-off is at 200 Hz [ Jon Oct 28, 2017 ]
If you click on details you will see that the sub out has a fixed 200Hz low pass filter. [ Jon Jul 11, 2017 ]
As far as I know there is no cross over. [ Joseph Graves Jul 07, 2017 ]
It is full range and doesn't have a gain either. However, my sub has those. I still like the receiver a lot. Sounds super good. I would recommend. [ STEVEN B Jul 07, 2017 ]
Good Lord! I don't even know what the question means. Advise the customer to talk one of your appropriate technicians. I have, and they are very patient and knowledgeable. [ JEROME M Jul 07, 2017 ]
I'm afraid that information is not provided for either of these Cambridge models. The only details on the headphone output state "The amplifier's speaker outputs are muted when headphones are connected; and headphones with an impedance of between 32 and 600 ohms are recommended" You may want to try contacting Cambridge's support directly for more details--you can reach them at 800-663-9352. [ Larry Apr 29, 2017 ] Staff
Tech Support is included with your purchase from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. [ Kenny Mar 09, 2017 ] Staff
Yes by putting it in the standby mode [blue light] the remote will function perfectly! [ CRAIG H Feb 06, 2017 ]
Yes. With the power switch on the back turned on the unit is in a low power stand by mode when not being used. The unit even goes into standby mode when not being used for 30 minutes. Handy when you fall asleep [ THEODORE Feb 04, 2017 ]
IF the standby button on back is on, than yes you can turn the receiver on with the remote [ DAVID Feb 04, 2017 ]
Yes, you can turn it on and off using just the remote. It will also automatically "power off" if you don't play anything for a while. [ Chris Feb 04, 2017 ]
Yes [ bob Feb 03, 2017 ]
Leave it on stand by at all times. Use the remote to switch to power up. [ Joseph Graves Feb 03, 2017 ]
Yes. Just press the power button on the remote. [ JAMES Feb 03, 2017 ]
You can send an email to Cambridge directly, but I believe the answer is no. The power switch on the back is a 'master' switch, and the one in front is a standby, and so is the one on the remote. So, you turn the power on in the back and leave it on at all times. It consumes almost no power (1/2 a watt) in standby. [ Ed Feb 03, 2017 ]
Yes the power is always on in back then you power on and off with remote or button on front. It never powers completely off it goes into standby by [ dennis Feb 03, 2017 ]
You can use the front panel "MP3" jack to play from an iPod/iPad/iPhone. That's what I do. The jack is analog. The only digital inputs to the SR20 are on the back and are Toslink optical and RCA-jack S/P DIF digital audio. I haven't found a convenient way to get Toslink or S/P DiF off of an iDevice. There are cables to get TOSLINK from a Mac that plug into the headphone jack. PCs seem to be all different, so you can go hunting for a digital audio output adapter from whatever PC you have (if it's a PC). [ ALAN Dec 07, 2015 ]
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