Reviews
Foundation
Stereophile
"My initial impressions of the sound via the Foundation were exceedingly positive: the balance was really satisfying, and images stood firm against a background of absolute inky black."
Sound & Vision
"The Foundation maintained the clarity, dimensionality, and ease of even the most timbrally complex, dynamically challenging passages "
Home Theater Review
"It's hard to do better than the Krell Foundation AV preamp in terms of performance. "
Home Cinema Choice
"Its performance is stunning in every conceivable acoustic respect, and I never thought I would say that about any AV hardware, period.""
Stars of CES 2013
"A product that promises the high-definition, 7.1-channel audio prowess to match its looks. If it's state-of-the-art surround-sound processing you want"
Flashes of Brilliance
"Speaking of runaway favorites, one of the more exciting developments at CES 2013 didn't take the form of an UltraHD display but rather an AV preamp courtesy of American electronics manufacturer Krell"
Downloads
Specifications
Foundation 4K
Signal to Noise Ratio
"A" Weighted 106 dB
Total Harmonic Distortion
(THD) Unweighted 20 Hz-20 kHz, +0, - 0.003 dB
Inputs
Analog Audio
(1) Pair Balanced via XLR connectors
(4) Pairs Single-ended via RCA connectors
Digital Audio
(10) HDMI 2.0 (4 w/HDCP 2.2) via HDMI connectors (9 on rear, 1 on front)
(3) EIAJ optical via Toslink connectors
(3) Coaxial via RCA connectors
Digital Video
(10) HDMI 2.0 (4 w/HDCP 2.2) via HDMI connectors (9 on rear, 1 on front)
Analog Video
(3) Component Video via RCA connectors
(2) Composite Video via RCA connectors
Outputs
Analog Audio
(9) Balanced via XLR Connectors
R, L, C, SR, SL, SBR, SBL, S1, S2
(9) Single-ended via RCA Connectors
R, L, C, SR, SL, SBR, SBL, S1, S2
(1) Zone 2 Output
(2) Single-ended via RCA connectors
Digital Audio
(2) HDMI via HDMI connector
Digital Video
(2) HDMI via HDMI connector
Both Include Audio Return Channel
Control / Update
(1) IR Receiver for Remote Control
(1) RS-232 via DB9 Female Connector Straight Wired
(1) RC-5 via 1/8" stereo "trs" Receptacle
(1) Ethernet via RJ-45 Connector
(1) Mini USB used for firmware updates
(1) 12vdc Remote Trigger Input via 1/8" Mono receptacle
(1) 12vdc Remote Trigger Outputs via 1/8 Mono receptacles
Digital Decoding Modes
Dolby True HD
Dolby Digital Plus
Dolby Digital 5.1
Dolby Digital EX
Dolby Pro Logic IIX
DTS-HD Master Audio
DTS-HD High Resolution Audio
DTS 5.1
DTS ES Discrete 6.1
DTS ES Matrix 6.1
DTS Neo:6
PCM 5.1
PCM 7.1
Surround Enhancement Modes
General Admission
Front Row
On Stage
Enhanced Stereo
Orchestra
Mezzanine
Full Range + Sub
Monophonic
Party
RS-232 DB9 pin out
1. Data Carrier Detect
2. Received Data
3. Transmitted Data
4. Data Terminal Ready
5. Signal Ground
6. Data Set Ready
7. Request To Send
8. Clear To Send
9. Ring Indicator
RC-5 pin out
Tip = RC-5 data, Ring = +5 V, Sleeve = GND
XLR pin out
Pin 1 (ground) Pin 2 (non-inverting "Hot") Pin 3 (Inverting)
Maximum Input
Balanced 6.3 Vrms
Single Ended 3.15 Vrms
Maximum Output
Balanced 16.7 Vrms
Single Ended 8.35 Vrms
Audio Input Impedance
Balanced 58K Ω
Single Ended 58K Ω
Audio Output Impedance
Balanced 100 Ω
Single Ended 100 Ω
Power Consumption
Stand-by 2w
Operation 59w
Dimensions
Inches (L) 16.83 x (W) 17.06 x (H) 3.47
Centimeters (L) 42.76 x (W) 43.33 x (H) 88.1
Weight
18lbs Unit only
8.16kg Unit only
24lbs Shipping Weight
10.89kg Shipping weight
